| 1–5/6 | Crankshaft position sensor for ERE/EVE systems |
| 220/1 | Screen in isolation |
| 237/2 | CAN data bus output (low) |
| 27/24 | Pin "87" |
| 27/25 | Output of contact "87" without fuse (Motronik/relay module) |
| 825/2 | ERE/EVE set point sensor |
| A1 | Instrument cluster |
| A16 | Shock sensor |
| A16/1 | Shock sensor 1 left |
| A16/2 | Impact sensor 2 right |
| A1e1 | Left turn signal indicator lamp |
| A1e11 | Coolant level warning light |
| A1e12 | Oil level warning light |
| A1e13 | Windscreen washer fluid level indicator light |
| A1e14 | Lamp failure indicator light |
| A1e15 | Airbag and seat belt tensioner warning/warning light |
| A1e16 | Incandescent device control lamp |
| A1e17 | ABS warning light |
| A1e2 | Right turn signal indicator lamp |
| A1e21 | ASR warning light |
| A1e22 | ASR control lamp |
| A1e27 | ADS suspension system warning light |
| A1e3 | High beam indicator lamp |
| A1e35 | ETS indicator light |
| A1e36 | ETS warning light |
| A1e37 | Power Steering Fluid Level Warning Light |
| A1e4 | Fuel reserve indicator light |
| A1e44 | Multifunctional pointer backlight, white |
| A1e45 | Multifunctional indicator backlight, red |
| A1e5 | Charging indicator light/alternator warning light |
| A1e6 | Brake pad wear indicator light |
| A1e7 | Brake fluid level/parking brake warning light |
| A1e8 | Instrument cluster lighting |
| A1e9 | Seat belt warning light |
| A1h1 | Warning signal |
| A1p1 | Coolant temperature gauge |
| A1p2 | Fuel level indicator |
| A1p4 | Outside temperature indicator |
| A1p5 | Crankshaft speed sensor |
| A1p6 | Electronic clock |
| A1p8 | Electronic speedometer |
| A1r1 | Instrument cluster illumination brightness rheostat |
| A2 | Radio tape recorder |
| A2/29 | Radio and navigation system APS |
| A2/30 | APS navigation system |
| A26/7 | Infrared remote control receiver behind the rearview mirror in the passenger compartment |
| A32 | Mechanism for regulating air flow in the heating system |
| A32m1 | Fan motor |
| A32n1 | Fan speed controller |
| A37 | Pneumatic Steering Mechanism (PSE), mixed functions |
| A42b2 | Left middle sensor, front bumper |
| A42b3 | Sensor left inner, front bumper |
| A42b4 | Right inner sensor, front bumper |
| A42b5 | Right middle sensor, front bumper |
| A42b6 | Right outer sensor, front bumper |
| A43 | Parktronic Sensor Unit (PTS), Rear Bumper |
| A43b10 | Left outer sensor, rear bumper |
| A43b7 | Right outer sensor, rear bumper |
| A43b8 | Right inner sensor, rear bumper |
| A43b9 | Left inner sensor, rear bumper |
| A44/1 | Parktronic system (PTS) signaling device, instrument panel left |
| A44/3 | Parktronic system (PTS) signalling device, rear ceiling light |
| A44/4 | Parktronic system (PTS) signaling device, instrument panel in the middle |
| A45 | Horn/Airbag contact spiral |
| A45x2 | Plug connector for contact coil/horn relay |
| A50 | Taximeter |
| A51 | Rear Axle Headlight Leveling System Sensor |
| A52 | Front Axle Headlamp Leveling System Sensor |
| A6 | Heater/additional heater |
| A7/3m1 | Fuel injection pump/return pump |
| A7/3y10 | Solenoid valve rear left, pressure holding |
| A7/3y11 | Magnetic valve rear left, pressure relief |
| A7/3y12 | Magnetic valve rear right, pressure holding |
| A7/3y13 | Solenoid valve rear right, pressure relief |
| A7/3y14 | Magnetic check valve |
| A7/3y15 | Magnetic intake valve |
| A7/3y16 | Magnetic valve, front axle |
| A7/3y17 | Magnetic valve, rear axle |
| A7/3y18 | Switching valve, front axle |
| A7/3y19 | Switching valve, rear axle |
| A7/3y5 | Switching magnetic valve |
| A7/3y6 | Solenoid valve front left, pressure holding |
| A7/3y7 | Solenoid valve front left, pressure relief |
| A7/3y8 | Solenoid valve front right, pressure holding |
| A7/3y9 | Solenoid valve front right, pressure relief |
| B10/1 | Heat exchanger sensor |
| B10/4 | Interior temperature sensor |
| B10/4b1 | Temperature sensor |
| B10/4m1 | Fan |
| B10/4x1 | Interior Temperature Sensor Contact Connector |
| B11 | Coolant temperature sensor |
| B17 | Intake Air Temperature Sensor |
| B19 | Temperature sensor in the catalytic converter |
| B19/1 | Catalytic Converter Temperature Sensor Connector |
| B2/5 | Air volume sensor |
| B24/2 | Lateral acceleration sensor |
| B24/3 | Acceleration sensor, front left |
| B24/4 | Acceleration sensor, front right |
| B24/6 | Acceleration sensor, rear right |
| B28 | Pressure sensor |
| B28/3 | ARF travel sensor |
| B34 | ESP brake pressure sensor |
| B38 | Rain sensor |
| B4 | Fuel level indicator sensor |
| B6/1 | Hall sensor, camshaft |
| C2 | Interference Suppression, Generator/Battery Wires |
| CZ7 | Pin "30" |
| E1 | Lighting unit left |
| E18/1 | Trunk lighting |
| E1e1 | High beam |
| E1e3 | Side/parking light |
| E1e8 | Low beam, xenon headlights |
| E1m1 | Headlight corrector motor |
| E1n1 | Control unit, xenon headlights |
| E1n2 | Starter, xenon headlights |
| E2 | Lighting unit right |
| E25/3 | Interior light, rear left pillar (T) |
| E25/4 | Interior light, rear right pillar (T) |
| E2e1 | High beam |
| E2e3 | Side/parking light |
| E2e8 | Low beam, xenon headlights |
| E2m1 | Headlight corrector motor |
| E2n1 | Control unit, xenon headlights |
| E2n2 | Starter, xenon headlights |
| E3 | Rear left side light |
| E3e5 | Rear fog light |
| E4 | Rear right side light |
| E4e5 | Rear fog light |
| F1 | Fuse and relay box |
| F1–1 | Fuse 1, contact "15R" |
| F1–10 | Fuse 10, contact "15" |
| F1–11 | Fuse 10, contact "15" |
| F1–12 | Fuse 12, contact "15R" |
| F1–13 | Fuse 13, contact "15R" |
| F1–14 | Fuse 14, terminal "56b" |
| F1–15 | Fuse 15, contact "15" |
| F1–16 | Fuse 16, contact "15" |
| F1–17 | Fuse 17, contact "30" |
| F1–18 | Fuse 18, reserve |
| F1–19 | Fuse 19, contact "15" |
| F1–2 | Fuse 2, contact "15R" |
| F1–20 | Overload fuse 20, contact "30" |
| F1–21 | Fuse 21, reserve |
| F1–22 | Fuse 22, contact "15R" |
| F1–23 | Fuse 23, contact "15R" |
| F1–24 | Fuse 24, contact "15R" |
| F1–25 | Fuse 25, contact "30" |
| F1–26 | Fuse 26, reserve |
| F1–3 | Fuse 3, contact "15R" |
| F1–4 | Fuse 4, contact "30" |
| F1–5 | Fuse 5, contact "30" |
| F1–6 | Fuse 6, contact "30" |
| F1–7 | Fuse 7, contact "15" |
| F1–8 | Fuse 8, contact "15X" |
| F1–9 | Fuse 9, contact "30" |
| F4 | Fuse socket, rear |
| F4–1 | Fuse 1, contact "30" |
| F4–10 | Fuse 10, contact "30" |
| F4–11 | Fuse 11, contact "30" |
| F4–12 | Fuse 12, contact "30" |
| F4–13 | Fuse 13, contact "30" |
| F4–14 | Fuse 14, contact "30" |
| F4–15 | Fuse 15, contact "30" |
| F4–16 | Fuse 16, contact "30" |
| F4–17 | Fuse 17, contact "30" |
| F4–18 | Fuse 18, contact "30" |
| F4–19 | Overload fuse 19, contact "30" |
| F4–2 | Fuse 2, contact 30 |
| F4–20 | Overload fuse 20, reserve |
| F4–3 | Fuse 3, contact "30" |
| F4–4 | Fuse 4, contact "30" |
| F4–5 | Fuse 5, contact "30" |
| F4–6 | Fuse 6, contact "30" |
| F4–7 | Fuse 7, contact "30" |
| F4–8 | Fuse 8, contact "30" |
| F4–9 | Fuse 9, contact "30" |
| G1 | Battery |
| G2 | Generator |
| G3/1 | Lambda probe |
| G3/1x1 | Lambda probe connector |
| H2 | Sound signal |
| K26/2 | Washer Pump Switch Relay |
| K40 | Relay module |
| K40/6 | Beep guard |
| K40f1 | ETS/ASR/ESP fuse |
| K40f5 | Fuel pump fuse |
| K40f6 | Beep guard |
| K40k1 | Fuel pump relay |
| K40k2 | Engine relay, contact "87", without fuse |
| K40k3 | EFP relay |
| K40k4 | Horn relay |
| K40k5 | Electronic Traction Control System (ETS)/ASR Relay |
| K40k6 | Air pump relay |
| K40k7 | Motor relay, pin "87", HFM |
| K40k8 | EDC system relay |
| K52 | Rear fog light switch relay |
| K54 | Closing relay |
| L11 | Transponder coil |
| L5 | Crankshaft position sensor |
| L5/6 | Crankshaft Position Sensor ERE/EVE |
| L5/6x1 | Crankshaft Position Sensor ERE/EVE Connector |
| L6/1 | Speed sensor, front left |
| L6/2 | Speed sensor, front right |
| L6/3 | Speed sensor, rear left |
| L6/3x1 | Speed sensor connector, rear left |
| L6/4 | Speed sensor, rear right |
| L9 | Needle motion sensor |
| L9x1 | Needle motion sensor contact connector |
| M1 | Starter |
| M12/1 | Sunroof |
| M12/1k1 | Relay 1 hatch |
| M12/1k2 | Relay 2 hatch |
| M12/1m1 | Hatch motor |
| M12/1s1 | Limit switch "opening" |
| M12/1s2 | Limit switch "up" |
| M12/1s3 | Limit switch "down" |
| M12/1s4 | Limit switch "closing" |
| M13 | Circulation pump |
| M15 | ASR/ESP pump |
| M16/1 | Electronic Throttle Position (EFP)/Travel Management (TMP)/Idle Speed Regulation (LLR) Control Unit |
| M16/1k1 | Electromagnetic clutch |
| M16/1m1 | Adjustment motor |
| M16/1r1 | Actual value potentiometer |
| M16/1r2 | Actual value potentiometer |
| M16/1s1 | Additional contact switch |
| M16/1s2 | Idle speed auxiliary contact switch |
| M16/1x1 | Electronic Throttle Position (EFP)/Travel Management (TMP)/Idle Speed Regulation (LLR) Control Unit Connector |
| M16/2 | Cruise Control (TMP)/Idle Speed Regulation (LLR) Control Unit |
| M16/2k1 | Electromagnetic clutch |
| M16/2m1 | Electric motor adjustment |
| M16/2r1 | Throttle Actual Value Potentiometer |
| M16/2r2 | Actual drive value potentiometer |
| M16/2s1 | Additional contact switch |
| M16/2s2 | Idle speed detection switch |
| M16/2x1 | Cruise Control (TMP)/Idle Speed Regulator (LLR) Control Unit Connector |
| M16/6 | Idle Speed Regulator (LLR) Control |
| M16/6m1 | Adjustment motor |
| M16/6r1 | Actual throttle position potentiometer |
| M16/6r2 | Actual drive value potentiometer |
| M21/4 | External rear view mirror, left, with electric adjustment, heating, memory |
| M21/5 | External rear view mirror, right, electrically adjustable, heated, memory |
| M3 | Fuel pump |
| M33 | Air pump |
| M5/1 | Washer pump |
| M6/1 | Windscreen wiper motor |
| M6/4 | Rear door wiper motor |
| N10–1 | Multifunctional control unit |
| N14/2 | Final stage of incandescence |
| N15/3 | EGS controller |
| N18 | Heating system control and adjustment unit (HAU) |
| N19 | Air conditioner control and adjustment unit |
| N₂/2 | Belt tensioner (GUS) and airbag (AB) controller |
| N₂2 | Climate control and adjustment unit (KLA) |
| N3/10 | Engine Electronics Controller (ME) |
| N3/4 | Fuel injection controller (HFM) |
| N3/7 | ERE Controller |
| N3/8 | EVE Controller |
| N32/1 | Front left seat adjustment control unit, with memory |
| N32/2 | Front right seat adjustment control unit, with memory |
| N4/3 | Cruise Control Module (TMP)/Idle Speed Regulation (LLR) |
| N47–1 | ASR/PML Controller |
| N47–2 | ETS/PML Controller |
| N47–5 | ESP/PML controller |
| N49 | Steering wheel position sensor |
| N51 | ADS control unit |
| N54 | Infrared Remote Control Unit (IFZ) |
| N54/1 | Control unit for infrared access control system of anti-theft system |
| N62 | Parktronic System Control Unit (PTS) |
| N64 | ESP RPM Sensor |
| N65 | Clock module (ETS, SRA, EDW, KLA) |
| N65k2 | Immobilizer relay |
| N65k4 | Fuel injection pump/return pump relay |
| N7–1 | Lighting module |
| N71 | Headlight corrector control unit |
| N76 | Control unit for additional fan/supply electric fan |
| R25/2 | ERE/EVE set point sensor |
| R25/2r1 | Preset value sensor potentiometer |
| R25/2s1 | Idle speed contact switch |
| R3 | Cigarette lighter with ashtray lighting, front |
| R3e1 | Lighting |
| R3r1 | Heating element |
| R3x1 | Cigarette lighter connector |
| R9 | Glow plugs |
| S10/1 | Brake pad wear contact sensor, front left |
| S10/2 | Brake pad wear contact sensor, front right |
| S10/4 | Brake pad wear contact sensor, rear right |
| S11 | Brake fluid level warning light switch |
| S12 | Parking brake indicator light switch |
| S13/2 | Sunroof Power Switch (SHD) |
| S15 | Remote trunk release switch |
| S16/1 | Immobilizer and reversing light switch |
| S16/10 | Gear Detection Switch |
| S16/10s1 | Reverse light switch |
| S16/6 | Kick-down switch |
| S17/3 | Door contact switch, front left |
| S17/4 | Door contact switch, front right |
| S17/5 | Door contact switch, rear left |
| S17/6 | Door contact switch, rear right |
| S17/8 | Trunk light switch |
| S2 | Start switch |
| S26/1 | Windscreen wiper heating thermal switch |
| S29/3 | Idle speed contact switch |
| S35 | Resonant intake manifold switch |
| S35/1 | Resonant intake manifold switch |
| S4 | Combination switch |
| S4/2 | Sound signal switch |
| S4/2x1 | Horn contact connector |
| S40 | Cruise control on/off button |
| S40/3 | Clutch pedal switch |
| S40s2 | Delay/fixation |
| S40s3 | Acceleration/fixation |
| S40s4 | Shutdown |
| S40s5 | Control contact |
| S40s1 | Recall from memory |
| S40x1 | Cruise Control Switch (TMP) Contact Connector |
| S41 | Coolant level indicator light switch |
| S42 | Windscreen washer fluid level indicator switch |
| S43 | Oil level indicator light switch |
| S45/1 | ADS comfort/sport mode switch |
| S4s3 | Low beam switch |
| S4s4 | Windscreen wiper switch with delay |
| S4s5 | Windscreen wiper switch |
| S4x1 | Contact connector of the combination switch |
| S6/1 | Driver's seat switch group |
| S6/1s2 | Central locking switch from inside |
| S6/1s3 | Rear headrest switch |
| S68/9 | Seat belt buckle/comfort system switch, front left |
| S68/9x1 | Front left seat belt buckle/comfort system switch connector |
| S76/5 | ASR OFF switch |
| S76/6 | ESP OFF switch |
| S77/2 | Hydraulic fluid level indicator switch |
| S86/1 | Front left switch (comfort) |
| S86/1s1 | Front left switch (comfort), without fuse |
| S86/1s2 | Front left switch (comfort), with fuse |
| S87/1 | Front right switch (comfort) |
| S87/1s1 | Front right switch (comfort), without fuse |
| S87/1s2 | Front right switch (comfort), with fuse |
| S88/2 | Trunk lid switch (comfort) |
| S88/2s1 | Boot lid switch (comfort), without fuse |
| S88/2s2 | Boot lid switch (comfort), with fuse |
| S9/1 | Brake light switch |
| S95 | Parktronic System (PTS) Switch |
| T1/1 | Dual spark ignition coil 1, cylinders 1 and 4 (HFM/PMS) |
| T1/2 | Dual spark ignition coil 2, cylinders 2 and 3 (HFM/PMS) |
| T1/3 | Dual spark ignition coil 3, cylinders 1 and 6 (HFM/PMS) |
| U1 | Valid for USA |
| U12 | Valid for left hand drive vehicles |
| U13 | Valid for right hand drive vehicles |
| U18 | Valid for instrument cluster without CAN bus |
| U2 | Valid for all (except USA) |
| U23 | Valid for injection system (ME 1.0) |
| U24 | Valid for MG |
| U25 | Valid for AG |
| U26 | Valid for engine 104 |
| U29 | Valid for KLA |
| U3 | Valid for ETS |
| U4 | Valid for TMP |
| U50 | Valid for USA, J, CH, N, DK, FIN |
| U502 | Valid for towing hitch - additional installation |
| U503 | Valid for taxi |
| U505 | Valid for EFP, TMP, LLR |
| U506 | Valid for ADS |
| U507 | Valid for ESP |
| U512 | Valid for ground clearance control system |
| U517 | Valid for all engines (except 604) |
| U52 | Valid for Japan |
| U526 | Valid for APS |
| U527 | Valid for EGS |
| U54 | Valid for xenon headlights and headlight range control |
| U55 | Valid for engine 604 |
| U56 | Valid for version with side airbags |
| U57 | Valid for T-model |
| U58 | Valid for sedan and extended sedan |
| U60 | Not valid for seat belt comfort system |
| U61 | Valid for rear left fog lights |
| U64 | Valid for rear right fog lights |
| U67 | Valid for key switch, left hand drive vehicle |
| U68 | Valid for key switch, right hand drive vehicle |
| U69 | Not valid for seat and steering column adjustments |
| U70 | Valid for seat and steering column adjustment |
| U77 | Valid for PML |
| U8 | Valid for ASR |
| U85 | Valid for ETS/AG |
| U86 | Valid for ADS/ESP |
| U87 | Valid for air conditioner |
| U88 | Valid for version with rain sensor |
| U9 | Valid for ETS/MG |
| U91 | Valid for injection system (ME 2.0) |
| U95 | Valid for HFM |
| U96 | Valid for EVE |
| U97 | Valid for ERE |
| W1 | Main "ground" contact (behind the instrument cluster) |
| W10 | Battery ground contact |
| W11 | Engine ground contact |
| W15/1 | Ground contact in the right footwell |
| W15/2 | Ground contact in left footwell |
| W16/3 | Left wheel ground contact |
| W16/4 | Right wheel ground contact |
| W16/5 | Ground contact in the engine compartment on the left |
| W16/6 | Ground contact in the engine compartment on the right |
| W18 | Ground contact of cross beam, front left seat |
| W19 | Ground contact of cross member, front right seat |
| W26 | Ground contact of the seat belt tensioner controller (GUS)/airbag (AB) |
| W29/8 | Ground contact of the rear left pillar (T) |
| W6/1 | Ground contact in the trunk of the rear left light |
| X11/22 | Test connection for diagnostics II |
| X11/4 | Test connection for diagnostics |
| X12/3 | Wire connection, contact "30" |
| X12/5 | Wire connection, contact "15/158" (supporting base of the body) |
| X18 | Contact connector driver's seat/body support base |
| X21/1 | Connecting the brake light switch wires |
| X22 | Contact connector - engine bay/engine |
| X22/1 | Contact connector - engine compartment/engine, AG |
| X22/2 | Contact connector - engine compartment/engine, terminal "50" |
| X22/3 | Contact Connector - Engine Compartment/Engine Mounting Device |
| X22/4 | Contact connector - manual transmission/engine, 4-pin |
| X25 | Contact connector - engine compartment/substructure (diagnostics) |
| X25/2 | Connector - Engine Compartment/Body Substructure, TMP |
| X25/3 | Connector - Engine Compartment/Body Substructure, EFP |
| X25/7 | Contact connector - engine compartment/substructure |
| X26 | Contact connector - driver's seat/engine compartment |
| X26/1 | Contact connector — traction control system (contact "61e") driver's seat/body support base |
| X26/2 | Contact connector - driver's seat/engine compartment (contact "61e") |
| X26/27 | Contact connector - Parktronic system, body support base/front bumper |
| X35/1 | Contact connector - front left door/substructure |
| X35/2 | Contact connector - front right door/substructure |
| X35/27 | Contact connector - Parktronic system, body support indicator/driver's position |
| X35/28 | Contact connector - Parktronic system, body support base/rear bumper |
| X35/3 | Contact connector - rear left door/substructure |
| X35/34 | Contact connector - body support base/driver's position, supply voltage to rear fuse socket |
| X35/4 | Contact connector - rear right door/substructure |
| X4 | Wire connection, terminal "30", left footwell |
| X58 | Towbar connector, 13-pin |
| X58/4 | Luggage compartment contact connector |
| X58S1 | Towing device detection microswitch |
| X62/1 | Connector - Speed Sensor/Brake Pad Wear Indicator Rear Left |
| X62/19 | Connection of speed signal wires ASR/ETS electronic system front left |
| X62/2 | Connector - Speed Sensor/Brake Pad Wear Indicator Rear Right |
| X62/21 | Connection of speed signal wires ASR/ETS electronic system rear left |
| X62/6 | Contact connector - front axle - distributor right (engine compartment) |
| X62/7 | Contact connector - front axle-distributor left (engine compartment) |
| X63/5 | Contact connector - CAN bus, 2-pin |
| X85/1 | Contact connector - air conditioner wiring/engine wiring |
| X88/1 | Coolant pump intermediate connector |
| Y1/1 | Electrohydraulic switch |
| Y1/1b1 | Fuel temperature sensor |
| Y1/1y1 | Installation device |
| Y10 | P-valve of PML system |
| Y13 | Valve, supply air/recirculation |
| Y21 | Double valve |
| Y21y1 | Coolant valve, left side |
| Y21y2 | Coolant valve, right side |
| Y22/6 | Resonant intake manifold switching valve |
| Y22/7 | Resonant intake manifold switching valve |
| Y23/1 | In-line fuel injection pump |
| Y23/111 | Fuel injection pump rack travel sensor |
| Y23/112 | Actual position of the control valve |
| Y23/1x1 | Contact connector of the ERE injection system feeder |
| Y23/2 | Distribution fuel injection pump |
| Y23/212 | Distributor shaft position sensor |
| Y23/2r1 | Equalizing resistance |
| Y23/2r2 | Equalizing resistance |
| Y23/2x1 | Contact connector of the distribution fuel injection pump (EVE) |
| Y23/2y1 | Shut-off valve |
| Y23/2y2 | Check valve |
| Y23/2y3 | Switching valve |
| Y23/2y4 | Inlet valve |
| Y23/3 | Distribution fuel injection pump |
| Y23/311 | Control valve stroke sensor |
| Y23/312 | Actual position of the control valve |
| Y23/3b1 | Fuel temperature sensor |
| Y23/3x1 | Actual position of the control valve |
| Y23/3y1 | Fuel supply device |
| Y27 | ARF Switch Valve |
| Y3/6 | Electrical control device |
| Y3/6b1 | Temperature sensor |
| Y3/6n2 | Speed sensor 2 |
| Y3/6n3 | Speed sensor 3 |
| Y3/6s1 | Starter interlock contact |
| Y3/6y1 | Regulating magnetic valve, modulating pressure |
| Y3/6y2 | Regulating solenoid valve, switching pressure |
| Y3/6y3 | Solenoid valve 1-2 and 4-5 |
| Y3/6y4 | Magnetic valve 3-4 |
| Y3/6y5 | Magnetic valve 2-3 |
| Y3/6y6 | Pulse modulation magnetic valve |
| Y31/1 | ARF pressure transducer |
| Y31/2 | Regulating valve pressure transducer |
| Y31/4 | ARF Pressure Transducer/Regulating Damper |
| Y49 | Control solenoid of the camshaft |
| Y51y2 | Solenoid valve 2 front axle |
| Y51 | Damper valve, front axle left |
| Y51y1 | Solenoid valve 1 front axle |
| Y52 | Damper valve, front axle right |
| Y52y1 | Solenoid valve 1 front axle |
| Y52y2 | Solenoid valve 2 front axle |
| Y53 | Damper valve, rear axle left |
| Y53y1 | Solenoid valve 1 front axle |
| Y53y2 | Solenoid valve 2 front axle |
| Y54 | Damper valve, rear axle right |
| Y54y1 | Solenoid valve 1 front axle |
| Y54y2 | Solenoid valve 2 front axle |
| Y58/1 | Resetting valve |
| Y62 | Fuel injection valves |
| Y62y1 | Valve, 1st cylinder |
| Y62y2 | Valve, 2nd cylinder |
| Y62y3 | Valve, 3rd cylinder |
| Y62y4 | Valve, 4th cylinder |
| Y62y5 | Valve, 5th cylinder |
| Y62y6 | Valve, 6th cylinder |
| Y65/3 | Central locking valve for remote opening of the trunk lid |
| Y66/1 | Reverse/Parking Lock |
| Y6OX1 | Injection advance clutch magnetic valve connector |
| Z13 | Output "5" |
| Z14 | Output "6" |
| Z20 | Screen in isolation |
| Z21/10 | Door contact output (ground connection), soldered connection in wiring |
| Z21/11 | Remote trunk opening indicator lamp output |
| Z21/3 | Output of the door contact at the rear (connection of "ground"), supply of voltage from the contact switch in the door at the rear left (S17/5) and rear right (S17/6) |
| Z21/5 | Output of switch 1 trunk lid, EDW/ZV |
| Z21/6 | Output of switch 2 trunk lid, EDW/ZV |
| Z29/1 | Output "58L" |
| Z3 | Terminal "15", without fuse |
| Z3/11 | Terminal "15", voltage supply from fuse F1–7 |
| Z3/26 | Terminal "15", without fuse |
| Z3/28 | Pin "15", brake signal |
| Z3/29 | Terminal "15", with fuse |
| Z30/1 | Left turn signal output, driver's seat |
| Z30/2 | Right turn signal output, driver's seat |
| Z30/3 | Left turn signal output, body support base |
| Z30/4 | Right turn signal output, body support base |
| Z36/1 | Ground terminal, PTS system, rear sensors |
| Z36/2 | Power Supply Terminal, PTS System, Rear Sensors |
| Z36/3 | Ground terminal, PTS system, front sensors |
| Z36/4 | Power Supply Terminal, PTS System, Front Sensors |
| Z37 | CAN bus output in the passenger compartment/body support base (low) |
| Z37/1 | CAN bus output in the passenger compartment/body support base (high) |
| Z37/13 | CAN bus output, engine/driver's seat (low) |
| Z37/14 | CAN bus output, engine/driver's seat (high) |
| Z37/2 | CAN bus output, engine (low) |
| Z37/3 | CAN bus output, engine (high) |
| Z38 | Reverse signal output |
| Z40 | Brake signal output |
| Z41 | Cruise control off output |
| Z42 | Output of the definition of the towing device, PTS |
| Z6 | Conclusion of "mass" |
| Z6/20 | Ground terminal, rear door |
| Z6/8 | Sensor ground output |
| Z7 | Output "30" |
| Z7/1 | Output "30", driver's seat |
| Z7/24 | Output "87" |
| Z7/25 | Terminal "87", without fuse (Motronic/Relay Module) |
| Z7/29 | Terminal "87", without fuse, voltage supply via overload protection relay (K1) |
| Z7/33 | Output "30", hatch |
| Z7/5 | Output "87" |
| Z81 | Output "58d" |
| Z81/4 | Output "87d", supporting base of the body |
| Z83/6 | Output, screen, voltage supply from EZL |
| Z84/3 | Control device output, EFP system on the left (signal "+") |
| Z84/4 | Control device output, EFP system left (signal "-") |
| Z89 | Output of the speed sensor, front axle, right, voltage supply from the ABS controller (N30), ASR (N30/1)/(N47–1), ETS (N47–2) |
| Z92 | TNA output - signal A |
| Z99/1 | Pin "87", ASR/ETS |
| Z99/2 | Output "87", EFP |
| Z99/3 | Pin "87", supporting base of the body |
| Z99/4 | Steering wheel angle sensor output |
Main abbreviations used on Mercedes vehicles
| 4MATIC | Automatically variable all-wheel drive |
| AB | Airbag |
| ABL | Outdoor lighting |
| ABS | Anti-lock braking system 4 |
| ABW | Radar (parking sensor) |
| ACC | Position of the ignition key when parked with the instruments on |
| ADA | Fuel injection pump rack travel limiter with altitude corrector |
| ADS | Ground clearance adjustment system |
| AG | Automatic transmission |
| AKR | Anti-knock control |
| ALDA | Atmospheric pressure correction system |
| APS | "Autopilot" system |
| ARF | Return flow of exhaust gas |
| ASA | Automatic anti-glare mirrors |
| ASD | Automatic differential lock |
| ASF | Anti-theft system shut-off valve |
| ASR | Traction control system |
| ATS | Antenna system |
| BAS | Brake Assist System |
| CAN | CAN data bus (Control Area Network - on-board communication controller) |
| SS | Vehicle speed control system |
| CDW | CD changer |
| CKP | Crankshaft angle sensor |
| CV | Convertible roof |
| DH | Diagnostic Handbook |
| DTC | Diagnostic trouble code |
| EA | Electronic accelerator |
| EAG | Electronic control of automatic transmission |
| ECT | Coolant temperature sensor |
| EDR | Electronic control of diesel engine |
| EDS | Electronic system of diesel engine |
| EDW | Anti-theft system |
| EFP | Electronic throttle control |
| EHD | Electronic high pressure diesel fuel injection system |
| EGR | Exhaust gas recirculation system |
| ELR | Electronic idle speed control |
| ELV | Electric steering column adjustment |