Location and assignment of Z connector sleeves (cable connections in wiring harness) - interior left - GF00.19-P-3000-04SAA
Model 221
| Z connector sleeve | Designation | Component | Designation | Connector. Pin |
|---|---|---|---|---|
| Z3 | Tml. 15 connector sleeve | |||
| Hybrid | ← N10/1 | Front SAM control unit with fuse and relay module | I1.4 | |
| Hybrid | → N10/2 | Rear SAM control unit with fuse and relay module | I1.2 | |
| I9.15 | ||||
| Z3/36 | ACSR [AKSE] circuit 15R connector sleeve | |||
| Not valid for USA | ← N10/1 | Front SAM control unit with fuse and relay module | 61 | |
| Not valid for USA | → B48 | Front passenger seat occupied and child seat recognition sensor | 3 | |
| Not valid for USA | → N2/7 | Restraint systems control unit | 1.2 | |
| Not valid for USA | → X28/30 | Passenger-side FFS [RBA]/seat airbag separation point | 2 | |
| Z6/16(1) | AAC [KLA] temperature sensors ground connector sleeve | ← N22/1 | AAC [KLA] control unit | C.1 |
| → B10/9 | Left rear air conditioning heat exchanger temperature sensor | 1 | ||
| → B10/10 | Right rear air conditioning heat exchanger temperature sensor | 1 | ||
| → B10/11 | Rear air conditioning evaporator temperature sensor | 1 | ||
| Z6/56 | Circuit 31 connector sleeve | |||
| ← W6 | Ground (left wheelhouse in luggage compartment) | |||
| USA | → A28/2 | Portable CTEL antenna amplifier | 1.2 | |
| except USA | → A28/3 | E-net compensator | 1.2 | |
| Except USA, as of 06/09 | → A34/7 | Bluetooth module | 1.2 | |
| Up to 05/09 | → A34/13 | Rear handset cradle | 1 | |
| Up to 08/10 | → A40/5 | Left rear display | 1.1 | |
| 1.5 | ||||
| Up to 05/09 | → N96 | Frequency switchover control unit | 1.1 | |
| → N123/1 | Universal Portable CTEL Interface (UPCI [UHI]) | 1.3 | ||
| control unit | 1.4 | |||
| Up to 08/10 | → W43 | Ground (reference, image transmission systems) | ||
| Z7/5 (1) | Circuit 87 connector sleeve | ← N10/1 | Front SAM control unit with fuse and relay module | I2.1 |
| up to 05/08, M272, M273 | → N10/2 | Rear SAM control unit with fuse and relay module | I1.2 | |
| M156, M272, M273 | → N3/10 | ME-SFI [ME] control unit | 2.3 | |
| 2.5 | ||||
| Z7/6 | Circuit 87 connector sleeve (body) | ← N10/1 | Front SAM control unit with fuse and relay module | I2.2 |
| Hybrid | → N82/2 | Battery management system control unit | 2.9 | |
| Hybrid | → N83/1 | DC/DC converter control unit | 2.2 | |
| Hybrid | → N129/1 | Power electronics control unit | A.20 | |
| Hybrid | → X26/29 | Engine wiring harness/engine compartment connector | 8 | |
| Z7/72 (2) | COC nozzles and sensors sensor ground connector sleeve | |||
| ← N10/1 | Front SAM control unit with fuse and relay module | I5.15 | ||
| → B12 | Refrigerant pressure sensor | 1 | ||
| → R41/4 | Rear center air outlet potentiometer | 2 | ||
| Z7/73 | Circuit 87 D4 connector sleeve | ← N10/1 | Front SAM control unit with fuse and relay module | I2.1 |
| Hybrid | → N3/10 | ME-SFI [ME] control unit | 2.3 | |
| 2.5 | ||||
| Z13 | Connector sleeve 5 | |||
| M629 | ← N3/9 | CDI control unit | 1.42 | |
| → A49/5 | Radio data transmission keyboard | 3.9 | ||
| ←A50 | Taximeter | 7 | ||
| → A67 | Inside rearview mirror unit | 1.9 | ||
| M629 | → B60/1 | Left exhaust back pressure sensor | 1 | |
| M629 | → B60/2 | Right exhaust back pressure sensor | 1 | |
| → X1/44 | Taxi peripherals separation point | 1.9 | ||
| Z28/1 | Left rear speaker group connector sleeve (+ signal) | |||
| up to 08/06 | ← N93/1 | Audio tuner control unit | 5.7 | |
| up to 08/06 | → H4/3h1 | Left rear door tweeter | 2 | |
| up to 08/06 | → H4/3h2 | Left rear door woofer | 2 | |
| up to 08/06 | → X35/3 | Left rear door separation point | 1.20 | |
| Z28/2 | Left rear speaker group connector sleeve (- signal) | |||
| up to 08/06 | ← N93/1 | Audio tuner control unit | 5.8 | |
| up to 08/06 | → H4/3h1 | Right rear door tweeter | 1 | |
| up to 08/06 | → H4/3h2 | Right rear door woofer | 1 | |
| up to 08/06 | → X35/3 | Left rear door separation point | 1.14 | |
| Z53/9 | Interior sleeve connector, airbag circuit 31 | ← N2/7 | Restraint systems control unit | 1.15 |
| 1.16 | ||||
| → B48 | Front passenger seat occupied and child seat recognition sensor | 4 | ||
| → B48/1 | Driver-side frontal acceleration sensor | 2 | ||
| → B48/2 | Passenger-side frontal acceleration sensor | 2 | ||
| → B48/5 | Airbag system driver assist | 2 | ||
| → B48/6 | Airbag system front passenger assist | 2 | ||
| → B48/7 | Driver door pressure sensor | 3 | ||
| → B48/8 | Front passenger door pressure sensor | 3 | ||
| → B48/9 | Rear door pressure sensor, driver-side | 3 | ||
| → B48/10 | Rear door pressure sensor, passenger-side | 3 | ||
| Up to 05/09 | → N2/13 | WSS (Weight Sensing System) control unit | A.1 | |
| As of 06/09 | → N110 | Weight Sensing System (WSS) control unit | 14 | |
| → S68/1 | Driver seat belt buckle and seat belt warning switch | 2 | ||
| → S68/2 | Front passenger seat belt buckle and seat belt warning switch | 1 | ||
| → W26 | Ground (restraint systems control unit) | |||
| Z53/29 | Rear entertainment circuit 30 connector sleeve | ← F1/7 | Left instrument panel fuse box | 101 |
| Valid for TV and video in rear, up to 05/09 | → A40/5 | Left rear display | 2.2 | |
| 2.3 | ||||
| Valid for TV and video in rear, as of 06/09 | → A40/5 | Left rear display | 1.2 | |
| Valid for TV and video in rear, up to 05/09 | → A40/6 | Right rear display | 2.2 | |
| 2.3 | ||||
| Valid for TV and video in rear, as of 06/09 | → A40/6 | Right rear display | 1.2 | |
| Z61/10 (1) | Driver seat backrest/head restraint motor connector sleeve | ← N32/1 | Left front seat control unit | 5.43 |
| → M27/4 | Left front head restraint motor | 2 | ||
| → M27/5 | Left front backrest angle adjustment motor | 3 | ||
| Z61/10 (2) | Driver seat backrest/head restraint motor connector sleeve | ← N32/1 | Left front seat control unit | 4.2 |
| → M27/4 | Left front head restraint motor | 1 | ||
| → M27/5 | Left front backrest angle adjustment motor | 1 | ||
| Z68/14 | TPM [RDK] LIN bus ground connector sleeve | |||
| Valid for ECE, up to 05/09 | ← N88 | TPM [RDK] control unit | 1.15 | |
| Valid for ECE, up to 05/09 | → A2/44 | Left front TPM [RDK] wheel antenna | 3 | |
| 4 | ||||
| Z81z2 | Circuit 58d connector sleeve | ← N10/1 | Front SAM control unit with fuse and relay module | C5.19 |
| → S93/3 | SOS pushbutton switch | K.4 | ||
| → S93/6 | MB-Info and telediagnosis button group | x1.5 | ||
| → Z81/5 | Circuit 58d COC connector sleeve | |||
| Z81/4 | FFS [RBA] circuit 58d connector sleeve | ← N10/1 | Front SAM control unit with fuse and relay module | I5.13 |
| → R3 | Front cigar lighter (with ashtray illumination) | x1.2 | ||
| → R3/1 | Rear cigar lighter | x1.2 | ||
| Z99/8 | Digital crash signal connector sleeve | |||
| Hybrid | ← N2/7 | Restraint systems control unit | 1.6 | |
| Hybrid | → N3/10 | ME-SFI [ME] control unit | 2.52 | |
| Hybrid | → N82/2 | Battery management system control unit | 2.8 | |
| Z99/10 | E-net compensator connector sleeve | |||
| except USA | ← A40/3 | COMAND control unit | 1A.19 | |
| except USA | → A28/3 | E-net compensator | 1.3 | |
| except USA | → A34/7 | Bluetooth module | 1.3 | |
| except USA | → A34/13 | Rear handset cradle | 1.3 | |
| Z110/2 | AC bus solder terminal | ← N10/1 | Front SAM control unit with fuse and relay module | I5.16 |
| → B82 | Vehicle interior humidity/temperature sensor | 1 | ||
| → M16/33 | Left B-pillar air distribution actuator motor | 1 | ||
| → M16/34 | Right B-pillar air distribution actuator motor | 1 | ||
| → N61 | Heated windshield control unit | 3.4 | ||
| Valid for heated windshield | → Z6/16 (2) | AAC [KLA] temperature sensors ground connector sleeve | ||
| ← Z68/15 | Heated windshield LIN bus ground connector sleeve | |||
| Z111 | Voltage supply connector sleeve | |||
| ← N10/1 | Front SAM control unit with fuse and relay module | I5.24 | ||
| → M16/33 | Left B-pillar air distribution actuator motor | 4 | ||
| → M16/34 | Right B-pillar air distribution actuator motor | 4 | ||
| → N61 | Heated windshield control unit | 3.6 | ||
| Valid for rear air conditioning | → Z68/16 | Heated windshield LIN bus positive connector sleeve |