Abbreviations Of Signal And Circuit Designations For Wiring Diagrams - OV00.01-P-1001-28FBA
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2023 Mercedes-Benz C43 AMG, 2022 Mercedes-Benz C43 AMG, 2021 Mercedes-Benz C43 AMG, 2020 Mercedes-Benz C43 AMG, and 2019 Mercedes-Benz C43 AMG. However, it is still accessible from the selected car via links, so may be relevant.
Model 205 up to model year 2019
Model 253 (except 253.99) up to model year 2020
| Abbreviation | Designation | Notes |
|---|---|---|
| 1.Zyl. | Cylinder 1 glow plug | |
| 2.Zyl. | Cylinder 2 glow plug | |
| 3.Zyl. | Cylinder 3 glow plug | |
| 4.Zyl. | Cylinder 4 glow plug | |
| 5.Zyl. | Cylinder 5 glow plug | |
| 6.Zyl. | Cylinder 6 glow plug | |
| 5V2 | Power supply output | |
| 5V3 | Power supply output | |
| 87M 1 | Power supply input | |
| 15 | Terminal 15 | |
| 30 | Circuit 30 | |
| 30L | Circuit 30 (left) | |
| 30R | Circuit 30 (right) | |
| 30c | Circuit 30c | |
| 31 | Circuit 31 | |
| 31L | Circuit 31 (left) | |
| 31R | Circuit 31 (right) | |
| 50 | Circuit 50 | |
| 50 (Shut Down) | Circuit 50 | |
| 54 | Circuit 54 | |
| 55 | Circuit 55 | |
| 58 | Terminal 58 | |
| 58D | Terminal 58d | |
| 85 | Circuit 85 | |
| 86 | Circuit 86 | |
| 87 | Terminal 87 | |
| - | Ground connection | |
| - (+) | Motor, right, left-hand rotation | |
| (-) | Ground connection | |
| (-)_REL Y | Ground | |
| (-)_REL_SCRCM | Ground | |
| (-)_REL1 | Ground | |
| (+) | Voltage supply | |
| -(+) | Motor, right, left-hand rotation | |
| +(-) | Motor, left, right-hand rotation | |
| (+/-) | Motor, right, left-hand rotation | |
| (+) 5V | Power supply 5Volt | |
| (+) SV | Power supply 5Vvolt | |
| AM in | Amplitude modulation input | |
| AM out | Amplitude modulation output | |
| A_RL_Y_50 (-) | Actuation of vacuum pump relay (+) | |
| A_RL_Y_50 (+) | Actuation of vacuum pump relay (+) | |
| A_S_AGH | Actuation of fuel tank heating element diagnostic module | |
| A_T_LSH1NX | Actuation of fuel tank air pump diagnostic module | |
| BL_L/FRA_L | Brake light, left tail light/left turn signal light | |
| BL_R/FRA_R | Brake light, right tail light/right turn signal light | |
| BL/FRA | Brake light/turn signal light | |
| PL/SL | Parking light/tail light | |
| TL/PL/BL/TSI_(+) | Tail light, parking light, brake light and turn signal indicator, combined | |
| SML_L/FRA_L | Left rear side marker light/left turn signal light | |
| SML_R/FRA_R | Right rear side marker light/right turn signal light | |
| SL/PL/SML | Tail light, parking light, side marker light | |
| EGR_SENT | Information digital input | |
| EKP | Fuel pump information digital output | |
| Flex E_BM | FlexRay bus (Low) | |
| Flex E_BP | FlexRay bus (High) | |
| G_R_APP1 | Signal ground 1 | |
| G_R_APP2 | Signal ground 2 | |
| I_A_EXTS5 | Information analog input | |
| LIN C3 | Drivetrain LIN | |
| LIN_C1 | Drivetrain LIN | |
| M_R_SENS2F | Fuel tank pressure sensor ground | |
| O_S_EMC2 | Engine control unit signal | |
| O_S_VSSAM | Warm start request | |
| Sw | Clutch pedal sensor switch signal | |
| (+)_BC_R_REL | Actuation of relay | |
| (+)_POWER- | Voltage supply | |
| (+)_RELY | Actuation | |
| (+)_REL1 | Actuation | |
| (+)_REL3 | Actuation | |
| 49L | Circuit 49L | |
| 49LR | Circuit 49LR | |
| _50 (-) | Actuation of relay for circuit 50, starter (negative) | |
| _50 (+) | Actuation of relay for circuit 50, starter (positive) | |
| 58d | Terminal 58d | |
| 87M | Circuit 87M | |
| _87M | Circuit 87M | |
| _Hyb (-) | Hybrid (-) | |
| _Hyb (+) | Hybrid (+) | |
| + | Voltage supply | |
| + (-) | Motor, left, right-hand rotation | |
| +12V | Power supply 12Volt | |
| +5V | Power supply 5Vvolt | |
| 115V AC1 | 115 Volt | |
| 115V AC2 | 115 Volt | |
| 12V | Power supply 12Volt | |
| 12V LIN B8- | Power supply 12Volt LIN | |
| 15/87 | Circuit 15/87 | |
| 15R | Circuit15R | |
| 2_SR_Li | Left rear compartment lamp | |
| 2_SR_Re | Right rear compartment lamp | |
| 230V AC1 | 230 Volt | |
| 230V AC2 | 230 Volt | |
| 30 Lade. | Circuit 30 | |
| 30 rechts | Circuit 30 | |
| 30 ung. | Circuit 30 | |
| 30_1 | Circuit 30_1 | |
| 30_2 | Circuit 30_2 | |
| 30c | Circuit 30 c | |
| 30g | Circuit 30 g | |
| 30z | Circuit 30 z | |
| 31 Sense | Circuit 30 | |
| 49 L | Circuit 49, left | |
| 49 R | Circuit 49, right | |
| 56a L | Circuit 56a, left | |
| 56b L | Circuit 56b, left | |
| 56b R | Circuit 56b, right | |
| 58d | Variable instrument/switch illumination | |
| 58d_Poti. | Variable instrument/switch illumination | |
| 5V | Power supply 5Vvolt | |
| 5V+ | Power supply 5Volt | |
| 87/1 | Circuit 87_1 | |
| 87/2 | Circuit 87_2 | |
| 87/3 | Circuit 87_3 | |
| 87/4 | Circuit 87_4 | |
| 87C | Circuit 87C | |
| 87C_1 | Circuit 87C1 | |
| 87c1 | Circuit 87C1 | |
| 87f | Circuit 87f | |
| 87M_1 | Terminal 87M1 | |
| 87M_2 | Circuit 87M2 | |
| 87M_3 | Circuit 87M3 | |
| 87M_4 | Circuit 87M4 | |
| 87M2 | Circuit 87M2 | |
| Amb | Ambiance illumination | |
| A (-) | Actuation of relay kR (-) | |
| A (+) | Relay kR actuation (+) | |
| A_BR | Actuation of bistable relay | |
| A_BR (-/+) | Actuation of bistable relay | |
| a_HA (Psi5-) | Rear body acceleration sensor (minus) | |
| a_HA (Psi5+) | Rear body acceleration sensor (plus) | |
| A_M_K_KK | Actuation of refrigerant compressor magnetic clutch | |
| A_P_TNA | Signal | |
| A_P_ZUE1 | Ignition coil actuation (spark plug 1) | |
| A_P_ZUE2 | Ignition coil actuation (spark plug 2) | |
| A_P_ZUE3 | Ignition coil actuation (spark plug 3) | |
| A_P_ZUE4 | Ignition coil actuation (spark plug 4) | |
| A_P_ZUE5 | Ignition coil actuation (spark plug 5) | |
| A_P_ZUE6 | Ignition coil actuation (spark plug 6) | |
| A_P_ZUE7 | Ignition coil actuation (spark plug 7) | |
| A_P_ZUE8 | Ignition coil actuation (spark plug 8) | |
| A_RLY | Actuation of relay kN | |
| A_RLY_VKP_BRM | Actuation of Adaptive Brake vacuum pump (plus) | |
| A_S_SAM | Front SAM control unit | |
| A_S_SG Start | On-board electrical system switchover | |
| A_S_STRH | Actuation of relay for circuit 50, starter (positive) | |
| A_S_STRL | Actuation of relay for circuit 50, starter (negative) | |
| A_SMOL | Actuation of switchable engine mount | |
| A_U_5VSP1 | Voltage supply | |
| a_VL (Psi5-) | Left front body acceleration sensor (negative) | |
| a_VL (Psi5+) | Right front body acceleration sensor (positive) | |
| a_VR (Psi5-) | Right front body acceleration sensor (negative) | |
| a_VR (Psi5+) | Right front body acceleration sensor (positive) | |
| AAV | Actuation of activated charcoal canister shutoff valve | |
| ACT_ENG_HD (-) | Left front bumper pedestrian protection sensor (minus) | |
| ACT_ENG_HD (+) | Left front bumper pedestrian protection sensor (plus) | |
| ACT_ENG_HD R (-) | Right front bumper pedestrian protection sensor (minus) | |
| ACT_ENG_HD_R (+) | Right front bumper pedestrian protection sensor (plus) | |
| AFV | Actuation of A/C compressor | |
| ALDW- | Steering wheel vibration motor ground connection M99 | |
| ALDW+ | Steering wheel vibration motor power supply M99 | |
| AMPS/CDMA | AMPS/CDMA signal | |
| AMPS/DVMA | AMPS/DVMA signal | |
| Anst (-) Rel_Star. | Actuation of relay for circuit 50, starter (negative) | |
| Anst (+) Rel_Starter | Actuation of relay for circuit 50, starter (positive) | |
| Anst (-) CPC_PIN_B25 | Actuation | |
| Anst (-) R_A_S Komp. | Actuation of AIRmatic compressor (minus) | |
| Anst (-) Rel. Strt. | Actuation of relay for circuit 50, starter (negative) | |
| Anst (+) R_A_S Komp | Actuation of AIRmatic compressor (plus) | |
| Anst (+) Rel. Strt. | Actuation of relay for circuit 50, starter (positive) | |
| Anst (+)_87M | Actuation of relay for circuit 87M | |
| Anst. | Actuation | |
| Anst. Bistabile Relais | Actuation | |
| Anst.(-) | Actuation of relay for circuit 50, starter (negative) | |
| Anst.(+) | Actuation of relay for circuit 50, starter (positive) | |
| AS_AAV | Actuation of activated charcoal canister | |
| ASV_HV_KG | Actuation of high-voltage battery cooling shutoff valve Y19/1 | |
| AT_HNS_1 | Obstacle 1 separator | |
| AT_HNS_2 | Obstacle 2 segregation | |
| AUX | AUX supply | |
| AUX Supply | AUX supply | |
| Aux Supply | AUX supply | |
| AVOD_Sig. | Actuation of shutoff valve for oil spray nozzles Y131 | |
| AWL | Exit and warning lamp power supply | |
| B_D_LIN C1 | Drivetrain LIN | |
| BAT + | Circuit 30 | |
| BBV_VR | Actuation | |
| B_D_KW-Ref-P1 | Signal | |
| BF_L_DR (-) | Driver emergency tensioning retractor squib 2 (minus) | |
| BF_L_DR (+) | Driver emergency tensioning retractor squib 2 (plus) | |
| BF_L_FPS (-) | Front passenger emergency tensioning retractor squib 2 (minus) | |
| BF_L_FPS (+) | Front passenger emergency tensioning retractor squib 2 (plus) | |
| BL | Center brake light | |
| BL_L | Brake light, taillight (left) | |
| BL_R | Brake light, taillight (right) | |
| BLS_GND | Brake light switch ground | |
| BLS_SUP | Brake light switch power supply | |
| BMSL_L | Left stop lamp | |
| BMSL_R | Right stop lamp | |
| BMSL_SL_L | Left brake light/taillight | |
| BMSL_SL_R | Right brake light/taillight | |
| BS AirCap | Soft top operating switch, AIRCAP | |
| BS_VD_Ofn | Soft top operating switch, open soft top | |
| BS_VD_Schl | Soft top operating switch, close soft top | |
| BS_FH_Z_H | Soft top operating switch, center up | |
| BS_FH_Z_T | Soft top operating switch, center down | |
| BPV_Sig | Exhaust gas recirculation cooler bypass switchover valve | |
| BT | Bluetooth® | |
| CAN D H | Diagnostic CAN High | |
| CAN D L | Diagnostic CAN Low | |
| CAN A H | Telematics CAN (High) | |
| CAN A L | Telematics CAN (LOW) | |
| CAN AMG H | AMG CAN (High) | |
| CAN AMG L | AMG CAN (Low) | |
| CAN B H | Interior CAN (High) | |
| CAN B L | Interior CAN (Low) | |
| CAN_B_H | Interior CAN (High) | |
| CAN_B_L | Interior CAN (Low) | |
| CAN C H | Engine CAN (High) | |
| CAN C L | Engine CAN (Low) | |
| CAN C1 H | Drivetrain CAN (High) | |
| CAN C1 L | Drivetrain CAN (Low) | |
| CAN H | CAN bus (High) | |
| CAN L | CAN bus (low) | |
| CAN HMI H | User interface CAN (High) | |
| CAN HMI L | User interface CAN (Low) | |
| CAN I H | Drivetrain sensor CAN (High) | |
| CAN I L | Drivetrain sensor CAN (Low) | |
| CAN K H | Multifunction CAN (High) | |
| CAN K L | Multifunction CAN (Low) | |
| CAN L H | Hybrid CAN (High) | |
| CAN L L | Hybrid CAN (Low) | |
| CAN PER H | Periphery CAN (High) | |
| CAN PER L | Periphery CAN (Low) | |
| CAN-A H | Telematics CAN (High) | |
| CAN-A L | Telematics CAN (LOW) | |
| CAN-B H | Interior CAN (High) | |
| CAN-B L | Interior CAN (Low) | |
| CAN-C H | Engine CAN (High) | |
| CAN-C L | Engine CAN (Low) | |
| CAN-C1 H | Drivetrain CAN (High) | |
| CAN-C1 L | Drivetrain CAN (Low) | |
| CAN-D H | Diagnostic CAN (High) | |
| CAN-D L | Diagnostic CAN (Low) | |
| CAN-H H | Vehicle dynamics CAN (High) | |
| CAN-H L | Vehicle dynamics CAN (Low) | |
| CAN-HMI H | User interface CAN (High) | |
| CAN-HMI L | User interface CAN (Low) | |
| CAN-I H | Drivetrain sensor CAN (High) | |
| CAN-I L | Drivetrain sensor CAN (Low) | |
| CAN-L H | Hybrid CAN (High) | |
| CAN-L L | Hybrid CAN (Low) | |
| CAN-PER H | Periphery CAN (High) | |
| CAN-PER L | Periphery CAN (Low) | |
| CAN-S1 H | Radar CAN 1 (High) | |
| CAN-S1 L | Radar CAN 1 (Low) | |
| CAN-S2 H | Radar CAN 2 (High) | |
| CAN-S2 L | Radar CAN 2 (Low) | |
| Center + | Center instrument panel speaker (positive) | |
| Center - | Center instrument panel speaker (negative) | |
| COC_Bel. | Warning light switch illumination | |
| COC_SW | Warning light switch | |
| CP | Control pilot signal line charging current | |
| Crash | Crash signal | |
| Crash Analog | Crash signal | |
| Crash Sig. | Crash signal | |
| Crash_DR_LR (-) | Left rear door pressure sensor (negative) | |
| Crash_DR_LR (+) | Left rear door pressure sensor (positive) | |
| Crash_DR_RR (-) | Right rear door pressure sensor (negative) | |
| Crash_DR_RR (+) | Right rear door pressure sensor (positive) | |
| Crash_FR_L (-) | Left front door pressure sensor (negative) | |
| Crash_FR_L (+) | Left front door pressure sensor (positive) | |
| Crash_FR_R (-) | Right front door pressure sensor (negative) | |
| Crash_FR_R (+) | Right front door pressure sensor (positive) | |
| Crash_LF (-) | Left frontal acceleration sensor (negative) | |
| Crash_LF (+) | Left frontal acceleration sensor (positive) | |
| Crash_LH (-) | Left sidebag sensor (negative) | |
| Crash_LH (+) | Left sidebag sensor (positive) | |
| Crash_RF (-) | Right frontal acceleration sensor (negative) | |
| Crash_RF (+) | Right frontal acceleration sensor (positive) | |
| Crash_RH (-) | Right sidebag sensor (negative) | |
| Crash_RH (+) | Right sidebag sensor (positive) | |
| D- | Universal serial bus data - | |
| D+ | Universal serial bus data + | |
| DAB | DAB antenna | |
| DAM_HL1 (HS) | Left rear suspension strut control valve (plus) | |
| DAM_HL1 (LS) | Left rear suspension strut control valve (minus) | |
| DAM_HR1 (HS) | Right rear suspension strut regulating valve (positive) | |
| DAM_HR1 (LS) | Right rear suspension strut control valve (minus) | |
| DAM_HL2 (HS) | Left rear Active Body Control damping valve (positive) | |
| DAM_HL2 (LS) | Left rear Active Body Control damping valve (negative) | |
| DAM_HR2 (HS) | Right rear Active Body Control damping valve (positive) | |
| DAM_HR2 (LS) | Right rear Active Body Control damping valve (negative) | |
| DAM_VL1 (HS) | Left front suspension strut closed-loop control valve (positive) | |
| DAM_VL1 (LS) | Left front suspension strut closed-loop control valve (negative) | |
| DAM_VL2 (HS) | Left front Active Body Control damping valve (positive) | |
| DAM_VL2 (LS) | Left front Active Body Control damping valve (negative) | |
| DAM_VR1 (HS) | Right front suspension strut closed-loop control valve (positive) | |
| DAM_VR1 (LS) | Right front suspension strut closed-loop control valve (negative) | |
| DAM_VR2 (HS) | Right front Active Body Control damping valve (positive) | |
| DAM_VR2 (LS) | Right front Active Body Control damping valve (negative) | |
| DATA WE 2 | Rear parking system indicator | |
| DATA_S1 | Outer left front parking system distance sensor data | |
| DATA_S10 | Inner left rear parking system distance sensor data | |
| DATA_S11 | Center left rear parking system distance sensor data | |
| DATA_S12 | Outer left rear parking system distance sensor data | |
| DATA_S2 | Center left front parking system distance sensor data | |
| DATA_S3 | Inner left front parking system distance sensor data | |
| DATA_S4 | Inner right front parking system distance sensor data | |
| DATA_S5 | Center right front parking system distance sensor data | |
| DATA_S6 | Outer right front parking system distance sensor data | |
| DATA_S7 | Outer right rear parking system distance sensor data | |
| DATA_S8 | Center right rear parking system distance sensor data | |
| DATA_S9 | Inner right rear parking system distance sensor data | |
| DCM | Throttle valve actuator | |
| DCP | Throttle valve actuator | |
| Diag. | Diagnosis | |
| DND_Sig. | Pressure sensor signal | |
| DPF_Sig | Diesel particulate filter signal | |
| DRV | Actuation of pressure regulator valve Y74 | |
| DS1 | Signal for pressure sensor downstream of air filter B28/5, right cylinder bank | |
| DS2 | Signal for pressure sensor upstream of throttle valve B28/6 | |
| DSRC | DSRC antenna | |
| DVHS (-) | AdBlue® metering valve actuation (negative) | |
| DVHS (+) | AdBlue® metering valve actuation (positive) | |
| DWS_HL (-) | Left rear level sensor (negative) | |
| DWS_HL (+) | Left rear level sensor (positive) | |
| DWS_HL (Psi5-) | Left rear level sensor (negative) | |
| DWS_HL (Psi5+) | Left rear level sensor (positive) | |
| DWS_HR (Psi5-) | Right rear level sensor (negative) | |
| DWS_HR (Psi5+) | Right rear level sensor (positive) | |
| DWS_VL (Psi5-) | Left front level sensor (negative) | |
| DWS_VL (Psi5+) | Left front level sensor (positive) | |
| DWS_VR (Psi5-) | Right front level sensor (negative) | |
| DWS_VR (Psi5+) | Right front level sensor (positive) | |
| DZS_HL_H | Signal | |
| DZS_HL_L | Signal | |
| DZS_HR_H | Signal | |
| DZS_HR_L | Signal | |
| DZS_VL_H | Signal | |
| DZS_VL_L | Signal | |
| DZS_VR_H | Signal | |
| DZS_VR_L | Signal | |
| E_A_DST | Pressure sensor downstream of throttle valve | |
| E_A_GNAG2 | Signal for purging pressure sensor B4/4 | |
| E_A_G_2 | Signal | |
| E_A_SP1S | Signal 1 | |
| E_A_SP2S | Signal 2 | |
| E_A_GA2 | Signal | |
| E_A_TANS | Intake manifold intake air temperature sensor | |
| EKP_EC_U | AC signal for fuel pump (phase U) | |
| EKP_EC_V | AC signal for fuel pump (phase V) | |
| EKP_EC_W | AC signal for fuel pump (phase W) | |
| EKP1 | Fuel pump "ON" | |
| EKPR | Fuel pump "ON" | |
| EKR | Fuel pump actuation | |
| ELV-Sig. | Signal for electric steering lock | |
| Enable (-) | Signal for DC/AC converter control unit (minus) | |
| Enable (+) | Signal for DC/AC converter control unit (plus) | |
| Eng.Contr.Mod.Kl.15 | Terminal 15 | |
| Entkop_SW_MR | Actuation | |
| ES_Wsch_O | Draft stop up limit switch | |
| ES_Wsch_U | Draft stop down limit switch | |
| ETN_Rx- | Ethernet Receiving (minus) | |
| ETN_Rx+ | Ethernet Receiving (plus) | |
| ETN_Tx- | Ethernet Transmission (minus) | |
| ETN_Tx+ | Ethernet Transmission (plus) | |
| EXP | Fuel pump actuation | |
| EXP_Lauf | Fuel pump actuation | |
| EXTS1 | Signal for temperature sensor upstream of turbocharger | |
| FEED | Power supply for rear parking system sensors | |
| FEED WE 2 | Rear parking system indicator | |
| FHS_DOWN | Power window switch, front passenger side | |
| FHS_UP | Power window switch, front passenger side | |
| FHL_H | Left rear power window motor up | |
| FHL_T | Left rear power window motor down | |
| FHR_H | Right rear power window motor up | |
| FHR_T | Right rear power window motor down | |
| FL+ | Left front door speaker (positive) | |
| FL- | Left front door speaker (negative) | |
| FR+ | Right front door speaker (positive) | |
| FR- | Right front door speaker (negative) | |
| FLEX-E_3_BM | FlexRay bus (Low) | |
| FLEX-E_3_BP | FlexRay bus (High) | |
| Flex Ray_BM1 | FlexRay bus (Low) | |
| FlexRay BP1 | FlexRay bus (High) | |
| FlexRay E A2 BM | FlexRay bus (Low) | |
| FlexRay E A2 BP | FlexRay bus (High) | |
| FlexRay_1_BM | FlexRay bus (Low) | |
| FlexRay_1_BP | FlexRay bus (High) | |
| FlexRay_2_BM | FlexRay bus (Low) | |
| FlexRay_2_BP | FlexRay bus (High) | |
| FlexRay_4_BM | FlexRay bus (Low) | |
| FlexRay_4_BP | FlexRay bus (High) | |
| FlexRay_A1_BM 1 | FlexRay bus (Low) | |
| FlexRay_A1_BP_1 | FlexRay bus (High) | |
| FlexRay_A2_BM 2 | FlexRay bus (Low) | |
| FlexRay_A2_BP_2 | FlexRay bus (High) | |
| FlexRay_BM | FlexRay bus (Low) | |
| FlexRay_BP | FlexRay bus (High) | |
| FlexRay_E_A1_BM | FlexRay bus (Low) | |
| FlexRay_E_A1_BP | FlexRay bus (High) | |
| FlexRay_E_A2_BM | FlexRay bus (Low) | |
| FlexRay_E_A2_BP | FlexRay bus (High) | |
| FlexRay_E_T_BM | FlexRay bus (Low) | |
| FlexRay_E_T_BP | FlexRay bus (High) | |
| FM2 | FM 2, AM, CL [ZV] and KEYLESS GO antenna amplifier | |
| FRA_L | Left turn signal lamp | |
| FRA_R | Right turn signal lamp | |
| Fuel Lev_1 | Signal for fill level sensor for left fuel tank fuel level indicator | |
| Fuel Lev_2 | Signal for fill level sensor for right fuel tank fuel level indicator | |
| FV_ZSP (-) | Filling valve for AIRmatic central reservoir (minus) | |
| FZV | FM 1, AM, CL [ZV] and KEYLESS GO antenna amplifier | |
| F58 kN | Actuation | |
| GBR_ENF_L | Left belt extender drive (-) | |
| GBR_ENF_R | Right belt extender drive (-) | |
| GBR_ASF_L | Left belt extender drive (+) | |
| GBR_ASF_R | Right belt extender drive (+) | |
| G_R_GND | Sensor ground for temperature sensor upstream of SCR catalytic converter | |
| GDS_Sig | Exhaust pressure sensor signal | |
| GND | Ground connection | |
| GND WE 2 | Rear parking system indicator | |
| GND_VAC_PUMP | Vacuum pump ground connection | |
| GPS | GPS signal | |
| GSM | GSM signal | |
| HF_BG | LED amber red | |
| HB_O_L | Upper soft top bow, limit switch | |
| HB_U_L | Lower left soft top bow locked, limit switch | |
| HB_U_R | Lower right soft top bow locked, limit switch | |
| HD_O | Rear switching module upper sensor | |
| HD_U | Rear switching module lower sensor | |
| HDK_Z | Trunk lid closed limit switch | |
| Heater 1 | Condensation sensor heating element actuation 1 | |
| Heater 2 | Condensation sensor heating element actuation 2 | |
| Heater (-) | Left oxygen sensor downstream of catalytic converter | |
| HEL_Sig | Vent line heater element | |
| HEM (-) | Heating element for auxiliary heater ground connection (minus) | |
| HEM (+) | Power supply for auxiliary heater heating element | |
| HEMT_DL | AdBlue® pressure line heating element | |
| HF_Sig1 | Hot film mass air flow sensor signal 1 | |
| HF_Sig2 | Hot film mass air flow sensor signal 2 | |
| HFS | Trunk lid/liftgate control button signal | |
| HF-Sig. | Hot film MAF sensor signal | |
| HGB li. | Left inside taillight | |
| HGB re. | Right inside taillight | |
| HGB_AL | Left side marker lamp actuation | |
| HGB_L | Left inner taillight actuation | |
| HGB_R | Right inner taillight actuation | |
| HK_SL_VL | Left front backrest heater pad actuation | |
| HS | Hall sensor signal | |
| HS 1 | Hall sensor 1 | |
| HS 2 | Hall sensor 2 | |
| HS1 | Hall sensor 1 | |
| HSD | Hall sensor 2 | |
| HSH | Rear fuse and relay module | |
| HV (-) | High voltage (-) | |
| HV (+) | High voltage (+) | |
| HVIL in | High voltage interlock input | |
| HVIL out | High voltage interlock outlook | |
| IL2 | LED warm white | |
| I_A_APP1 | Sensor signal 1 | |
| I_A_APP2 | Sensor signal 2 | |
| I_A_EXTS3 | Signal | |
| I_A_EXTS4 | Signal | |
| I_AX_TS3 | Information analog input | |
| I_A_LPOER | Signal | |
| ILS_LH | Left interior rear compartment lamp | |
| ILS_RH | Right interior rear compartment lamp | |
| Inj H | Fuel injector | |
| Inj L | Fuel injector | |
| Inj. High | Fuel injector | |
| Inj. Low | Fuel injector | |
| INJ_H | Fuel injector | |
| INJ_L | Fuel injector | |
| Ion oxy pump | Left oxygen sensor upstream of catalytic converter | |
| IP1S | Actual value potentiometer (sliding contact 1) signal | |
| IP2S | Actual value potentiometer (sliding contact 2) signal | |
| ISM | ISM emergency path actuation | |
| K-Line | K-line | |
| KDS Sig. | Fuel pressure sensor B4/7 signal | |
| KJA | Radiator shutters actuation | |
| Kl.30 ung. | Circuit 30, unfused | |
| Kl.15 Rel S | Actuation | |
| Kl.87C 1 | Circuit 87C 1 | |
| KPA_HL Sig. | Left rear KEYLESS-GO door handle signal | |
| KPS_HR Sig. | Right rear KEYLESS-GO door handle signal | |
| KPS_VL Sig. | Left front KEYLESS-GO door handle signal | |
| KPS_VR Sig. | Left front KEYLESS-GO door handle signal | |
| KTS_Sig. | Signal | |
| KRL L | Left luggage compartment lamp | |
| KRL R | Right luggage compartment lamp | |
| L1 | AC phase 1 | |
| L20 | Rotor position sensor | |
| Lamelle unten | Signal for lower slat | |
| LIN C13 | Drivetrain LIN bus | |
| LDS_SGN_1 | Signal 1 exterior lights switch (S1) | |
| LDS_SGN_2 | Signal 2, exterior lights switch (S1) | |
| LDS_SGN_3 | Signal 3 exterior lights switch (S1) | |
| LDS_Sig. | Boost pressure sensor | |
| LED (+) | LED power supply | |
| LED2 AirCap | LED2AIRCAP | |
| LED 1 | LED 1 signal | |
| LED 2 | LED 2 signal | |
| LED/Xe Control | Circuit 56b, left | |
| LF_ANT_HNT1 | Trunk KEYLESS GO antenna | |
| LF_ANT_HNT2 | Trunk KEYLESS-GO antenna signal | |
| LF_ANT_INNR1 | Center console KEYLESS-GO antenna | |
| LF_ANT_INNR2 | Center console KEYLESS-GO antenna signal | |
| LF_ANT_L1 | Left rear door KEYLESS GO antenna | |
| LF_ANT_L2 | Left rear door KEYLESS-GO antenna signal | |
| LF_ANT_R1 | Right rear door KEYLESS GO antenna | |
| LF_ANT_R2 | Right rear door KEYLESS GO antenna signal | |
| LIN | LIN bus | |
| LIN 1 | Instrument panel LIN | |
| LIN 2 | Climate control-LIN2 (LIN B8-2) data | |
| LIN 3 | A/C operating LIN (LIN B8-3) data | |
| LIN B13 | Roof LIN | |
| LIN B14 | Alarm system LIN | |
| LIN B15 | Battery sensor LIN | |
| LIN B16 | Rain and light sensor LIN | |
| LIN B26 | Massage components LIN | |
| LIN B27 | KEYLESS-GO-LIN (LIN B27) | |
| LIN B28 | Heater LIN | |
| LIN B5 | Left front door LIN (LIN B5) | |
| LIN B6 | Right front door LIN (LIN B6) | |
| LIN B8-1 | Climate control-LIN1 (LIN B8-1) data | |
| LIN B8-2 | Climate control-LIN2 (LIN B8-2) data | |
| LIN B8-3 | A/C operating LIN (LIN B8-3) data | |
| LIN C1 | Drivetrain LIN | |
| LIN E2 | Seat occupied recognition LIN | |
| LIN G1 | Left headlamp LIN | |
| LIN G2 | Right headlamp LIN | |
| LIN GND | LIN bus ground connection | |
| LL_BU | Light strip ambient lighting (blue) actuation | |
| LL_RD | Light strip ambient lighting (red) actuation | |
| LL_WH | Light strip ambiance illumination (white) actuation | |
| LL_YE | Light strip ambient lighting (yellow) actuation | |
| LLS_LH | Left rear reading lamp | |
| LLS_RH | Right rear reading lamp | |
| LPV | Actuation of purging switchover valve | |
| LS2HK | Left oxygen sensor downstream of catalytic converter signal | |
| LSCP1 | Pump current for oxygen sensor upstream of catalytic converter | |
| LSH1 | Supply voltage for heater oxygen sensor upstream of catalytic converter | |
| LSH1HK | Right heating element oxygen sensor downstream of catalytic converter actuation | |
| LSH2HK | Left heating element oxygen sensor downstream of catalytic converter actuation | |
| LSHK | Signal, right oxygen sensor downstream of catalytic converter | |
| LSP- | Steering wheel downshift button. | |
| LSP+ | Steering wheel upshift button. | |
| LSVG1 | Signal | |
| LSVN1 | Signal | |
| Luftf_Komp_Rel | AIRmatic compressor power supply | |
| LVDC+ | Low voltage differential signal (plus) | |
| LVDS- | Low voltage differential signal (ground connection) | |
| LVDS HU Tx- | Low voltage differential signal (ground) | |
| LVDS HU Tx+ | Low voltage differential signal (plus) | |
| LVDS RX- | Low voltage differential signal receiving (minus) | |
| LVDS RX+ | Low voltage differential signal receiving (plus) | |
| LVDS+ | Low voltage differential signal (plus) | |
| LWR | Headlamp range adjustment | |
| LWR Sig. | Signal | |
| LWR_Sig. | Headlamp range adjustment signal | |
| M-(+) | Motor minus (plus) | |
| M-(+) | Motor minus (plus) | |
| M_R_SP2 | Accelerator pedal sensor signal | |
| M+ | Motor plus | |
| M+(-) | Motor plus (minus) | |
| M+(-) | Motor plus (minus) | |
| max | Maximum | |
| MHK_S_L | Left engine hood contact switch signal | |
| Mic + | Microphone 1 (plus) | |
| Mic - | Microphone 1 (minus) | |
| Mic. 1 + | Microphone 1 (plus) | |
| Mic GND | Microphone (negative) | |
| Mic. 1 GND | Microphone 1 (minus) | |
| Mic1_In+ | Microphone 1 (plus) | |
| Mic2_In+ | Microphone 2 (plus) | |
| Mid_FL- | Left rear door midrange speaker (minus) | |
| Mid_FL+ | Left rear door midrange speaker (plus) | |
| Mid_FR- | Right rear door midrange speaker (minus) | |
| Mid_FR+ | Right rear door midrange speaker (plus) | |
| Mid_RL- | Left rear sidewall lining midrange speaker (minus) | |
| Mid_RL+ | Left rear sidewall lining midrange speaker (plus) | |
| Mid_RR- | Right rear sidewall lining midrange speaker (minus) | |
| Mid_RR+ | Right rear sidewall lining midrange speaker (plus) | |
| min | Minimum | |
| MOST | MOST bus | |
| MOST IN | MOST Receiver IN | |
| MOST OUT | MOST Transmitter OUT | |
| MOT | Motor (positive) | |
| MOT_(+) | Motor (positive) | |
| Mot. L-(+) | Motor right-handed/left-handed rotation for electronic parking brake, left | |
| Mot. L+(-) | Motor left-handed/right-handed rotation for electronic parking brake, left | |
| Mot. R-(+) | Motor right-handed/left-handed rotation for electronic parking brake, right | |
| Mot. R+(-) | Motor left-handed/right-handed rotation for electronic parking brake, right | |
| MP/00 | Ground connection | |
| MP/01 | Front radar sensors power supply | |
| MR Sons 1 | Ground | |
| MR_ESNF3 | Ground connection | |
| MV_1 | Solenoid valve 1 | |
| MV_2 | Solenoid valve 2 | |
| MV_3 | Solenoid valve 3 | |
| MV_4 | Solenoid valve 4 | |
| Mute | Mute function | |
| Mute, VCS | Mute function | |
| NC | Not assigned | |
| NIV_ABLV (-) | ABC switchover valve (minus) | |
| NIV_ABLV (+) | ABC switchover valve (plus) | |
| Niv_HL (-) | Left rear level control valve (minus) | |
| Niv_HR (-) | Right rear level control valve (minus) | |
| Niv_VL (-) | Left front level control valve (minus) | |
| Niv_VR (-) | Right front level control valve (minus) | |
| NOT | Emergency cutoff | |
| NSL | Rear fog lamp actuation | |
| NSL_L | Left rear fog lamp | |
| NSL_R | Right rear fog lamp | |
| NSW_L | Left fog lamp | |
| NW2A2 | Left exhaust camshaft solenoid actuation | |
| NWEA2 | Left exhaust camshaft Hall sensor signal | |
| NWG1 | Right intake camshaft Hall sensor signal | |
| NWGA1 | Right exhaust camshaft Hall sensor signal | |
| NWGE2 | Left intake camshaft Hall sensor signal | |
| NWG-Sig. | Sensor signal for camshaft Hall sensor | |
| NWSA1 | Right exhaust camshaft solenoid actuation | |
| NWSE1 | Right intake camshaft solenoid actuation | |
| NWSE2 | Left intake camshaft solenoid actuation | |
| O_PL_L4 | Circuit breaker/power driver | |
| O_S_MRLY | AdBlue® relay actuation | |
| O_S_MRLY_HS | Actuation of relay for circuit 87M | |
| O_T_neg | Signal | |
| O_T_OTC | Actuation of coolant thermostat heating element | |
| O_T_pos | Signal | |
| O_T_RAHT1 | Heating element AdBlue® container actuation | |
| O_T_RAMCP | AdBlue® extraction pump actuation | |
| O_V_RAMCP | AdBlue® extraction pump actuation | |
| O_T_RAPP | AdBlue® delivery pump actuation | |
| O_V_RAPP | AdBlue® delivery pump actuation | |
| Out - | Speaker (minus) | |
| Out + | Speaker (plus) | |
| P_LL | Pump counterclockwise rotation | |
| P_RL | Pump clockwise rotation | |
| PAS | Signal | |
| PAS A | Signal | |
| PAS B | Signal | |
| PAS_SIG2 | Pedal angle sensor signal 2 | |
| Pos. 1 li. | Left position light | |
| Pos. 1 re. | Right position light | |
| Pos. SML | Side marker lamp position lamp | |
| Pos. TFL | Daytime running lamps position lamp | |
| POT | Potential equalization high-voltage components | |
| Poti Sig. | Signal | |
| PP | Proximity signal line charging current | |
| PWM | Pulse width modulation | |
| PWM Sig. | Pulse width modulation signal | |
| PYFFB Hybrid (-) | Hybrid pyrofuse (minus) | |
| PYFFB Hybrid (+) | Hybrid pyrofuse (plus) | |
| R12/13 (-) | Squib 1, driver airbag (negative) | |
| R12/13 (+) | Squib 1, driver airbag (positive) | |
| R12/14 (-) | Squib 2, driver airbag (negative) | |
| R12/14 (+) | Squib 2, driver airbag (positive) | |
| REG | Actuation of purging switchover valve | |
| REL T | Relay kT actuation | |
| REL_R | Relay kR actuation (+) | |
| Rel_Vac_Pump | Vacuum pump relay actuation | |
| Relais U Anst. (+) | Actuation | |
| Relais X Anst | Actuation | |
| Res | Reserve slot fuse | |
| RFL | Actuation of backup lamp | |
| RFL_L | Left backup lamp actuation | |
| RFL_R | Right backup lamp actuation | |
| RL+ | Left rear door/side paneling speaker (positive) | |
| RL- | Left rear door/side paneling speaker (negative) | |
| RR+ | Right rear door/side paneling speaker (positive) | |
| RR- | Right rear door/side paneling speaker (negative) | |
| RSS_close_HSD | Relay F32/4k2 actuation | |
| RSS_close_LSD | Relay F32/4k2 actuation | |
| RSS_open_HSD | Relay F32/4k2 actuation | |
| RSS_open_LSD | Relay F32/4k2 actuation | |
| Rx- | Receiving (minus) | |
| Rx+ | Receiving (plus) | |
| RX-LWL | Receiving (minus) | |
| S1_SIG | Signal 1 | |
| S2_SIG | Signal 2 | |
| S_DL_LH | Left rear dome lamp button signal | |
| S_DL_RH | Right rear dome lamp button signal | |
| S_S_VREF3 | Signal | |
| S_SL_VL | Mirror lamps power supply | |
| SB_LR (-) | Left rear sidebag squib (minus) | |
| SB_LR (+) | Sidebag squib in left rear (plus) | |
| SB_RR (-) | Sidebag squib in right rear (minus) | |
| SB_RR (+) | Sidebag squib in right rear (plus) | |
| SDARS | Signal | |
| SDV_Sig | Sensor signal for low-pressure turbocharger boost pressure sensor | |
| Seat_Heater | Heated seats actuation | |
| SEB | Signal | |
| SEB (KL.50) | Signal | |
| Sensor | Sensor signal | |
| Sensor (-) | Ground connection | |
| Sensor Sig. | Signal | |
| Sensor Signal | Signal | |
| Setpoint | Variable resistor | |
| SGN | Sensor signal for fuel pressure sensor | |
| Shield | Shielding | |
| Sig | Signal | |
| Sig. | Signal | |
| Sig. 1 | Signal 1 | |
| Sig. pressure | Pressure signal | |
| Sig._ARFS | Signal | |
| Sig._EKA | Signal | |
| Sig._PMOT | Signal | |
| Sig.1 | Signal | |
| Sig.1 L20 | Signal 1 | |
| Sig.2 | Signal 2 | |
| Sig.2 L20 | Signal 2 | |
| Sig.3 L20 | Signal 3 | |
| Sig.4 L20 | Signal 4 | |
| Sig.-DSZL | Pressure signal | |
| Signal | Signal | |
| Signal (-) | Signal | |
| Signal 1 | Signal 1 | |
| Signal 2 | Signal 2 | |
| Signal 3 | Signal 3 | |
| Signal 4 | Signal 4 | |
| Signal A | Signal A | |
| Signal B | Signal B | |
| Signal temp. | Temperature signal | |
| SL | Tail lamp | |
| SL_L | Left Tail lamp | |
| SL_R | Right Tail lamp | |
| SL1_R | Right Tail lamp | |
| SL2_L | Left Tail lamp | |
| SML | Side-marker lamp | |
| SML_L | Left front side-marker lamp | |
| SML-L | Left front side-marker lamp | |
| SML_R | Right front side-marker lamp | |
| SOS | Radio help call | |
| SP (-) | Ground connection for locking finger and sensor, trailer hitch release | |
| SP 1 | Locking finger signal 1 | |
| SP 2 | Locking finger signal 2 | |
| SP1M | Signal ground 1 accelerator pedal sensor | |
| SP1S | Sensor signal 1 accelerator pedal sensor | |
| SP2M | Signal ground 2, accelerator pedal sensor | |
| SP2S | Sensor signal 2, accelerator pedal sensor | |
| Spkr Out - | Speaker (minus) | |
| Spkr Out + | Speaker (plus) | |
| STR | Actuation | |
| STRG | Sensor signal for fuel filter element | |
| STR- | Starter circuit 15 relay (K40/8kH) low side | |
| STR+ | Starter circuit 15 relay (K40/8kH), high side | |
| SubFL- | Left footwell bass speaker (minus) | |
| SubFL+ | Left footwell bass speaker (plus) | |
| SubFR- | Right footwell bass speaker (minus) | |
| SubFR+ | Right footwell bass speaker (plus) | |
| SurL- | Left rear surround sound system midrange speaker (minus) | |
| SurL + | Left rear surround sound system midrange speaker (plus) | |
| SurR - | Right rear surround sound system midrange speaker (minus) | |
| SurR + | Right rear surround sound system midrange speaker (plus) | |
| SW | Signal | |
| SW_1 | Signal 1, electric parking brake switch | |
| SW_2 | Signal 2, electric parking brake switch | |
| SW_3 | Signal 3, electric parking brake switch | |
| SW_4 | Signal 4, electric parking brake switch | |
| Top Status | Information analog input | |
| T5 Sen. | Signal for temperature sensor upstream of diesel particulate filter | |
| TBA | Power supply for outer door handle illumination | |
| TD_ZV | Actuation for tank cap central locking actuator | |
| Tel. Answer/End Call | Multifunction steering wheel mute function button | |
| Termination | Termination | |
| TES_Status | Tank cap release button status | |
| TES Sig. | Tank cap release button signal | |
| TFL | Daytime running lamps | |
| TFVKAT | Signal for temperature sensor upstream of catalytic converter | |
| THS | Actuation of coolant thermostat heating element | |
| TIB | Door handle illumination actuation | |
| TMOT | Signal for coolant temperature sensor | |
| TNSG_RTR_DR (-) | Driver emergency tensioning retractor squib (minus) | |
| TNSG_RTR_DR (+) | Driver emergency tensioning retractor squib (plus) | |
| TNSG_RTR_FPS (-) | Front passenger emergency tensioning retractor squib (minus) | |
| TNSG_RTR_FPS (+) | Front passenger emergency tensioning retractor squib (plus) | |
| TNSG_RTR_LR (-) | Left rear emergency tensioning retractor squib (minus) | |
| TNSG_RTR_LR (+) | Left rear emergency tensioning retractor squib (plus) | |
| TNSG_RTR_RR (-) | Right rear emergency tensioning retractor squib (minus) | |
| TNSG_RTR_RR (+) | Right rear emergency tensioning retractor squib (plus) | |
| TRK_GSch_R | Right retractable trunk partition closed | |
| TRK_A | Open trunk partition | |
| TRK_Z | Close trunk partition | |
| TSLL_Sig.) | Signal | |
| TV1 | Signal for TV 1 and DAB Band III antenna amplifier | |
| TV2 | Signal for antenna amplifier | |
| TV3 | Signal for antenna amplifier | |
| TX- | Transmission (Minus) | |
| Tx+ | Transmission (Plus) | |
| TX+ | Transmission (Plus) | |
| TX-LWL | Transmission (Minus) | |
| U_PWG | Sensor voltage 1 (5 V) accelerator pedal sensor | |
| Ua | Voltage supply | |
| Uak | Voltage supply | |
| Ub (+) | Voltage supply | |
| UB_P | Circuit 30 power supply | |
| UB_S | Circuit 30 power supply | |
| UB_V | Electronic parking brake circuit 30 | |
| U-MFL-R | Accept/terminate phone call button | |
| UMSCHVNT | Stationary heater switchover valve | |
| Up/Down | Scroll forward/back button | |
| Ur | Voltage supply | |
| Urear | Signal | |
| Us | Voltage supply | |
| USB +5V | Universal serial bus 5Volt power supply | |
| USB_5V | Universal serial bus 5Volt power supply | |
| USB 3D- | Universal serial bus 3 data - | |
| USB 4D+ | Universal serial bus 3 data + | |
| USB D- | Universal serial bus data - | |
| USB D+ | Universal serial bus data + | |
| V | Sun visor mirror lamp supply voltage | |
| VDKD_O_L | Left soft top compartment lid up limit switch | |
| V_Schlsn+ | Close plug (+) | |
| V_Ofn+ | Open plug (+) | |
| V_Ofn_R | Open plug | |
| V_VR_L | Left soft top "locked" limit switch | |
| V_VR_R | Right soft top "Locked" limit switch | |
| V_Z_L | Soft top closed limit switch | |
| V_A_L | Soft top "open" limit switch | |
| V_V_5V3APP1 | Signal | |
| V_V_BAT+1R-Tank | AdBlue® heater terminal 1 control unit supply voltage | |
| V_V_BAT+2R-DL | AdBlue® heater circuit 2 control unit supply voltage | |
| V_V_BAT+4R | AdBlue® control unit supply voltage | |
| VAC Pump_H | Actuation of Adaptive Brake vacuum pump (plus) | |
| VAC Pump_L | Adaptive Brake vacuum pump (minus) | |
| VAC Pump_MON | Vacuum pump feedback | |
| VAC1_GND | Brake vacuum sensor, ground | |
| VAC1_SIG | Brake vacuum sensor, signal 1 | |
| VAC1_SUP | Brake vacuum sensor power supply | |
| VAC2_SIG | Brake vacuum sensor, signal 2 | |
| VB+ | Voltage supply | |
| Vbus | Signal | |
| VHK | Heater pad power supply | |
| Virtual GND | Oxygen sensor virtual ground connection | |
| V-MFL-L | Left/right multifunction steering wheel button group | |
| WAbw sch+ | Close wind deflector (+) | |
| WAbw_Ofn+ | Open wind deflector (+) | |
| Wake up | Wake-up signal | |
| Wake-up | Wake-up signal | |
| WakeUp | Wake-up signal | |
| WaPu + | Water pump power supply | |
| WB_L (-) | Left windowbag squib (minus) | |
| WB_L (+) | Left windowbag squib (plus) | |
| WB_R (-) | Right windowbag squib (minus) | |
| WB_R (+) | Right windowbag squib (plus) | |
| W-LAN | Wireless LAN | |
| WP Sig. | Coolant pump switchover valve actuation | |
| WSch_H+ | Draft stop up (+) | |
| WSch_T+ | Draft stop down (+) | |
| ZUE1 | Actuation of ignition coil, cylinder 1 | |
| ZUE2 | Actuation of ignition coil, cylinder 2 | |
| ZUE3 | Actuation of ignition coil, cylinder 3 | |
| ZUE4 | Actuation of ignition coil, cylinder 4 | |
| ZUE5 | Actuation of ignition coil, cylinder 5 | |
| ZUE6 | Actuation of ignition coil, cylinder 6 | |
| ZV_AUF | Central locking motor open actuation | |
| ZV_ZU | Central locking motor close actuation | |
| ZVIS_Sig. | Central locking inside door handle switch signal | |
| Zyl. 1 | Actuation of 1st cylinder glow plug | |
| Zyl. 2 | Actuation of 2nd cylinder glow plug | |
| Zyl. 3 | Actuation of 3rd cylinder glow plug | |
| Zyl. 4 | Actuation of 4th cylinder glow plug |