Location and assignment of ground points - interior left - GF00.19-P-2000-04SAA
Model 221
| Ground point | Designation | Component | Designation | Plug Pin |
|---|---|---|---|---|
| W13 | Ground (heated rear window) | →R1 | Rear window defroster | |
| W15/4 | Ground (cockpit, left footwell) | |||
| RL | → A32 | AC air recirculation unit | 1 | |
| W17/1 | Ground (left rear seat) | → A44/3 | Rear PTS warning indicator | 2 |
| → E21 | Center high-mounted stop lamp | 1 | ||
| M642 | → M3 | Fuel pump | 4 | |
| M629, M642 | → M3x1 | Fuel pump connector | 1 | |
| Valid for lumbar support | → M25/1 | Lumbar pump | 3 | |
| Valid for multicontour seat (MCS [MKS]) | → M40 | Multicontour seat pneumatic pump | 3 | |
| Valid for dynamic seat (DS [FDS]) | → M40/1 | Pneumatic pump for dynamic seat control | 3 | |
| → N10/2 | Rear SAM control unit with fuse and relay module | 11.12 | ||
| → N32/20 | Left rear multicontour backrest control unit | 1.3 | ||
| 1.5 | ||||
| → N32/21 | Right rear multicontour backrest control unit | 1.3 | ||
| 1.5 | ||||
| → N72/2 | RCP [HBF] control unit | 2 | ||
| → N70 | Overhead control panel control unit | |||
| Not for tilting/sliding roof (SHD), up to 05/08 | → | 1.1 | ||
| M156, M272, M273, M275 | →→ N118 | Fuel pump control unit | 1.2 | |
| M156, M275.982, up to 11/08 | →→ | 1.5 | ||
| M156, M275.982, as of 12/08 up to 08/10 | 1.2 | |||
| M156, M275.982, as of 19/10 | 2.2 | |||
| M276, M278 | 1.2 | |||
| → Z6/1 | Ground connector sleeve | |||
| → Z36/1 | Rear PTS sensor ground connector sleeve | |||
| → Z36/3 | Front PTS sensor ground connector sleeve | |||
| W18 | Ground (left front seat crossmember) | →A 31/1 | Rear auxiliary heating system supply unit | 1.2 |
| 2.1 | ||||
| → A40/3 | COMAND control unit | 1A.20 | ||
| Up to 05/09 | → A40/9 | Front central operating unit | 1.1 | |
| →A76 | Left front reversible emergency tensioning retractor | 5 | ||
| M276, M278 | → B4/1x1 | Left tank half fuel level sensor connector | 1 | |
| K18/4 | → Left | front seat belt comfort solenoid | 1 | |
| N22/4 | → Rear | AC control unit | 2 | |
| N29/2 | → Rear | air conditioning electronic blower controller | 1 | |
| N32/1 | → Left | front seat control unit | 1.2 | |
| N69/3 | → Door | control module rear left | 1.3 | |
| As of 06/09 | → N125/1 | Media interface control unit | B.1 | |
| as of 06/07, LHD | → W26/1 | Ground (seat, left frontsidebag) | ||
| as of 06/07, RHD | → W26/2 | Ground (seat, right frontsidebag) | ||
| as of 06/07, LHD | → X28/29 | Driver-side FFS [RBA]/seat airbag separation point | 6 | |
| as of 06/07, RHD | → X28/30 | Passenger-side FFS [RBA]/seat airbag separation point | 6 | |
| → X30/21 | Drive train CAN voltage distributor connector | 2.3 | ||
| Valid for Japan | → X39/37 | CTEL separation point | 1.9 | |
| → X64/10 | Rear blower intermediate connector | 1 | ||
| → Y67 | Rear AC refrigerant shutoff valve | 1 | ||
| W26/1 | Ground (seat, left front sidebag) | |||
| up to | → 05/07 | E17/18 Left rear footwell lamp | 1 | |
| → N32/1 | Left front seat control unit | 5.42 | ||
| as of 06/07, LHD | → W18 | Ground (left front seat crossmember) | ||
| as of 06/07, RHD | → W19 | Ground (right front seat crossmember) | ||
| as of 06/07 | → X28/29 | Driver-side FFS [RBA]/seat airbag separation point | 6 | |
| up to 05/07 | → Z6/30 | Circuit 31 connector sleeve | ||
| W34 | Ground (left footwell) | |||
| LHD | → A1 | Instrument cluster | 1.1 | |
| 1.2 | ||||
| 1.3 | ||||
| LHD | → A2/30 | Navigation processor | 1.1 | |
| 1.8 | ||||
| LHD | → A40/8 | COMAND display | B1.1 | |
| LHD | → E13/1 | Glove compartment light | 1 | |
| LHD | → E17/15 | Right front footwell lamp | 1 | |
| LHD | → E17/16 | Left front footwell lamp | 1 | |
| LHD, as of 06/08 | → G1/6 | 3rd battery | 1 | |
| LHD | → N10/1 | Front SAM control unit with fuse and relay module | C2.10 | |
| C4.7 | ||||
| → N22/1 | AAC [KLA] control unit | 1.1 | ||
| LHD | B.4 | |||
| LHD | → N72/1 | Upper control panel control unit | 1.1 | |
| LHD | → N73 | EIS [EZS] control unit | A.5 | |
| B.2 | ||||
| LHD | → N80 | Steering column module | 1.1 | |
| Valid for steering wheel heater, LHD | 1.8 | |||
| LHD | → N93 | Central gateway control unit | A.2 | |
| AAC [KLA], C-AAC [K-KLA], LHD | → R41/1 | Left side air outlet potentiometer | 1 | |
| LHD, AAC [KLA], C-AAC [K-KLA], | → R41/2 | Right side air outlet potentiometer | 1 | |
| LHD, AAC [KLA], C-AAC [K-KLA], | → R41/3 | Front center air outlet potentiometer | 1 | |
| LHD | → S76/15 | Electric parking brake switch | 5 | |
| LHD | → X11/4 | Data link connector | 4 | |
| 5 | ||||
| LHD, as of 06/09 | → X58/31 | 12 volt connector in glove compartment | 1 | |
| LHD | → Z6/30 | Circuit 31 connector sleeve | ||
| LHD | → Z50/37 | Air conditioner compressor ground connector sleeve | ||
| W34/1 | Ground (electronics - left footwell) | |||
| M642.8 | → A9/7 | Refrigerant compressor with magnetic clutch | 4 | |
| Valid for ATA [EDW] with siren | → H3/1 | Alarm signal horn with additional battery | 2 | |
| Valid for engine 275, RHD, as of 08/06 | → M4/8 | Control unit box fan motor | 1 | |
| Valid for engine 275, RHD | → M44 | Charge air cooler circulation pump | 2 | |
| Valid for engine 156, RHD | → M45 | Engine coolant circulation pump | 2 | |
| LHD | → N3/9 | CDI control unit | 2.2 | |
| 2.4 | ||||
| 2.6 | ||||
| LHD, except M275 | → N3/10 | ME-SFI [ME] control unit | 2.2 | |
| 2.4 | ||||
| 2.6 | ||||
| LHD, M275 | → N3/10 | ME-SFI [ME] control unit | 5.5 | |
| 5.6 | ||||
| 5.7 | ||||
| Valid for engine 642 | → N10/1 | Front SAM control unit with fuse and relay module | I1.10 | |
| RL | → N15/3 | ETC [EGS] control unit | 2.30 | |
| → N37/5 | Left NOX (nitrogen oxides) control unit | 2 | ||
| 5 | ||||
| RL | → N37/7 | NOx sensor control unit downstream of diesel particulate filter | 2 | |
| → N37/8 | NOx control unit downstream of SCR catalytic converter | 2 | ||
| 5 | ||||
| RL | → N51 | AIRmatic with ADS control unit | 2.21 | |
| RL | → N51/2 | ABC control unit | M.21 | |
| → N69/1 | Door control module front left | 1.3 | ||
| RHD, up to 05/08 | → N88 | TPM [RDK] control unit | 1.8 | |
| RL | → S62 | ATA [EDW] hood switch | 2 | |
| RHD, start/stop | → S62/43 | Left engine hood contact switch | 1 | |
| RHD, start/stop | → V19 | ECO start/stop function diode | 1.2 | |
| RL | → X30/30 | Chassis CAN/FFS [RBA] voltage distributor connector | 6.3 | |
| RL | → X30/35 | Telematics CAN voltage distributor connector | 1.3 | |
| →X30/38 | Voltage distributor (CAN) connector | 2.3 | ||
| Hybrid | → X30/44 | Hybrid CAN voltage distributor connector | 2.3 | |
| → Y74 | Pressure control valve | |||
| → Z6 | Ground connector sleeve | |||
| M157, M278 | → Z6z1 | Ground connector sleeve | ||
| M272, LHD | → Z6/48 | Ground connector sleeve | ||
| W43 | Ground (reference, image transmission systems) | → A1 | Instrument cluster | 1.9 |
| Up to 05/09 | → A40/3 | COMAND control unit | 1A.19 | |
| As of 06/09 | → A40/3 | COMAND control unit | 1A.20 | |
| Up to 05/09 | → A40/4 | DVD player | 3.2 | |
| As of 06/09 | → A40/4 | DVD player | 3.1 | |
| Up to 05/09 | → A40/5 | Left rear display | 2.1 | |
| 2.4 | ||||
| As of 06/09 | → A40/5 | Left rear display | 1.1 | |
| 1.5 | ||||
| Up to 05/09 | → A40/6 | Right rear display | 2.1 | |
| 2.4 | ||||
| As of 06/09 | → A40/6 | Right rear display | 1.1 | |
| Up to 05/09 | → A40/8 | COMAND display | B1.3 | |
| As of 06/09 | → A40/8 | COMAND display | 1.1 | |
| As of 06/09 | → A40/9 | Front central operating unit | 1.1 | |
| As of 06/09 | → A40/10 | SPLITVIEW display | 1.1 | |
| As of 06/09 | → A40/11 | Multifunction camera | 2.1 | |
| → N101 | Night vision assist control unit | C2.6 | ||
| → Z6/56 | Circuit 31 connector sleeve | |||
| W54/3 | Ground (left rear wheelhouse) | → A13 | Electric parking brake control unit | K1.13 |
| → N10/2 | Rear SAM control unit with fuse and relay module | 19.6 | ||
| 19.17 | ||||
| As of 09/10 | → N69/5 | KEYLESS-GO control unit | 1.2 | |
| As of 06/09 | → N88 | TPM [RDK] control unit | 1.2 |