Table of contents: Symbolic designations ↓ Numerical designations (points and… ↓ Designations on "B" (starter,… ↓ Designations starting with "C"… ↓ Designations on "D" (coils, power… ↓ Designations starting with "E"… ↓ Designations on "F" (sensors, sensor… ↓ Designations on "G" (sensors) ↓ Designations with "H" (sound signals) ↓ Designations on "J" (electronic… ↓ Designations starting with "K" (K/L,… ↓ Designations on "L" (lamps) ↓ Designations on "M" (lamps) ↓ Designations on "N" (electromagnetic… ↓ Designations on "OQ" (connections,… ↓ Designations on "R" (Components of… ↓ Designations with "S" (Fuses) ↓ Designations on "T" and "U"… ↓ Designations on "W" and "X" (lamps) ↓ Designations for "Y" and "Z"… ↓
Symbolic designations
The jumper closes the circuit when the connector is disconnected
CAN bus wire
Numerical designations (points and connections of mass)
| 3 | Body and engine ground connection tape |
| 11 | Ground point, in battery holder |
| 12 | Ground point, left side of engine compartment |
| 18 | Ground point, on the cylinder block |
| 26 | Mass point, on the front apron |
| 32 | Ground point, left behind the instrument panel insert |
| 33 | Ground point, right behind the instrument panel |
| 43/44 | Mass point, lower part of right/left A-pillar |
| 49 | Ground point, near the central control unit for comfort systems |
| 50 | Ground point, left side of luggage compartment |
| 52/53 | Ground point, left/right side of trunk lid |
| 77/78 | Mass point, lower part of left/right B-pillar |
| 81 | Ground connection 1, in instrument panel wiring harness |
| 83 | Ground connection 1, in front right wiring harness |
| 85 | Ground connection 1, in the engine edema wiring harness |
| 86/87 | Ground connection 1/2, in rear wiring harness |
| 95 | Ground connection 1, in seat adjustment wiring harness |
| 96 | Ground connection 1, in seat heating wiring harness |
| 97 | Ground connection 1, in the climate control wiring harness |
| 109 | Ground connection in SRS wiring harness |
| 121 | Ground connection 2, in the front right fender wiring harness |
| 131 | Ground connection 2, in the engine compartment wiring harness |
| 133 | Ground connection in speaker wiring harness |
| 135 | Ground connection 2, in the instrument panel wiring harness |
| 136 | Ground connection 2, in seat heating wiring harness |
| 140 | Ground connection 2, in seat adjustment wiring harness |
| 146 | Ground connection 1, in auxiliary heater wiring harness |
| 176/179 | Ground connection in right/left headlight wiring harness |
| 205/206 | Ground connection, in the wiring harness of the left/right front door |
| 207/208 | Ground connection, in the left/right rear door wiring harness |
| 218/219 | Ground connection 1/2, in trunk lid wiring harness |
| 220 | Mass connection (sensor mass), in the engine wiring harness |
| 238 | Ground connection 1, in the passenger compartment wiring harness |
| 244 | Mass connection (sensor mass), in the climate control system wiring harness |
| 249 | Ground connection 2, in the passenger compartment wiring harness |
| 255 | Ground connection 1, in the audio system wiring harness |
| 261 | Ground connection in heated windshield washer nozzle wiring harness |
| 269 | Mass connection 1 (sensor mass), in the instrument panel wiring harness |
| 277 | Ground connection 3, in the passenger compartment wiring harness |
| 309 | Ground connection 1, shielding, in CD changer wiring harness |
| 323 | Mass connection (knock sensor), in the fuel injection system wiring harness |
| 327 | Mass connection (sensor mass), in the engine compartment wiring harness |
| 345 | Ground connection in the bumper wiring harness |
| 346 | Ground connection (audio), in the instrument panel wiring harness |
| 347 | Ground connection in roof wiring harness |
| 348 | Mass connection (parking assistance), in the front bumper wiring harness |
| 410/411 | Mass connection 1/2 (sensor mass), in the main wiring harness |
| 412 | Ground connection 3, in seat adjustment wiring harness |
| 500/501 | Screw connection 1/2 (30), on relay holder |
| 610 | Ground point (audio), under center console, front |
| 624 | Ground point, starter, battery |
| 653/654 | Mass point, left/right D-pillar |
| A | Battery |
| A1 | Positive connection (30a) |
| A2 | Positive connection (15) |
| A5/A6 | Positive connection (right/left turn signal) |
| A14 | Windshield Heating Voltage Converter |
| A17/18 | Connection (61/54) |
| A19/20 | Connection (58d/15a) |
| A21 | Connection (86s) |
| A24 | Compound (brake system monitoring) |
| A27 | Compound (speed signal) |
| A32 | Positive connection (30) |
| A33/A34 | Connection (75/75x) |
| A38 | Positive connection 2 (15a) |
| A46 | Positive connection (30 - from the audio unit) |
| A50 | Positive connection (30as) |
| A52/A57 | Positive connection 2/3 (30) |
| A66 | Compound (30a, CL/ATA/IR) |
| A70/A74 | Compound (15a, pr-l 231/5) |
| A76 | Compound (K-line diagnostics) |
| A87 | Connection (RF or RL (reversing lights)) |
| A98 | Positive connection 4 (30) |
| A99 | Compound 1 (87) |
| A104 | Positive connection 2 (15) |
| A114 | Compound (headlight leveling control) |
| A121/A122 | Compound (high/low tire) |
| A125 | Compound (emergency signal) |
| A1 29 | Compound (muting) |
| A133 | Compound (ABS pulse, left) |
| A139 | Compound 3(15) |
| A146/A147 | Compound (cAN bus comfort devices, high/low) |
| A151 | Compound 4(87) |
| A154 | Compound (brake pedal sensor) |
| A159/A175 | Connection (L/58s) |
| A178/A179 | Compound (cAN bus entertainment systems, high/low) |
| A187/A188 | Connection 1/2 (interior rear view mirror with automatic dimming) |
Designations on "B" (starter, connections)
| IN | Starter |
| B118 | Compound (driver's seat adjustment), in the interior wiring harness |
| B132 | Compound (number plate light), in the interior wiring harness |
| B154 | Connection 1 (DCt), in the passenger compartment wiring harness |
| B180 | Compound (rear window heating), in the interior wiring harness |
| B207 | Compound (comfort devices), in the interior wiring harness |
| B229/B230 | Compound (high/low tire), in the interior wiring harness |
| B248 | Connection 2 (rear window heating), in the interior wiring harness |
| B250 | Connection (+) in the roof wiring harness |
| B270 | Connection (58s), in the roof wiring harness |
| B346 | Connection 1 (75), in the main wiring harness |
| B528 | Connection 1 (LIN bus), in the main wiring harness |
Designations starting with "C" (generator, power supplies)
| C | Generator |
| C1 | Voltage regulator |
| C18 | Glass Antenna Noise Suppression Filter |
| C20 | Solar panels |
Designations on "D" (coils, power supplies)
Note: All components except "D", "D2", "D141" and "D174" are located in the engine compartment wiring harness.
| D | Ignition switch |
| D2 | Immobilizer coil |
| D50 | Positive connection (30) |
| D51 | Positive connection 1(15) |
| D66 | Positive connection (61) |
| D97 | Connection (50) |
| D100 | Positive connection 2 (15) |
| D101-D103 | Connection 1-3 |
| D106-D108 | Connection 4-6 |
| D141 | Connection (5 Volt), in the engine wiring harness |
| D159 | Connection (high bus) |
| D160 | Connection (bus low) |
| D166 | Compound (K-line diagnostics) |
| D172 | Compound (engine electrics) |
| D174 | Connection 2 (5 Volts), in the engine wiring harness |
Designations starting with "E" (switches, toggles)
| E1 | Lighting control switch |
| E2 | Turn signal switch |
| E22 | Windscreen wiper interval pause controller |
| E23 | Fog light and rear fog light switch |
| E24/E25 | D/V front left/right seat belt |
| E26 | Glove compartment light switch |
| E39 | Rear window lock switch |
| E40/E41 | Front Left/Right Window Switch |
| E43 | Exterior mirror adjustment switch |
| E45 | Tempostat switch |
| E48 | Adjustable outside mirror selection switch |
| E52/E53 | Rear left window switch in rear left door/driver door |
| E54/E55 | Rear right window switch in rear right door/driver door |
| E64 | Front passenger seat longitudinal adjustment switch |
| E87 | Climate control panel |
| E96 | Driver's seat backrest adjustment switch |
| E97 | Driver's Seat Position Memory Control Panel |
| E98 | Passenger seat backrest adjustment switch |
| E102 | Headlight leveling regulator |
| E107 | Front passenger door window switch |
| E128/E129 | Left/right rear seat heating control |
| E132 | ESP switch |
| E139 | Sunroof Control Switch |
| E149 | Rear Curtain Control Switch |
| E150 | Single lock switch from inside (driver side) |
| E168 | Outside mirror folding switch |
| E176/E177 | Driver/Passenger Seat Lumbar Support Adjustment Switch |
| E183 | Anti-theft system interior volume sensor switch |
| E198 | Single lock switch from inside (front passenger side) |
| E204 | Remote Fuel Filler Door Release Switch |
| E217 | Anti-theft system switch |
| E221 | Working block in the steering wheel |
| E222 | Driver's seat tilt adjustment switch |
| E224 | Front passenger airbag switch |
| E229 | Hazard warning switch |
| E233 | Remote trunk release switch |
| E264 | Telematics working unit |
| E266 | Parking assistance switch |
| E272 | Switch #2 function selection |
| E275 | Technical assistance call key |
| E276 | Emergency call key |
| E284 | Universal remote control |
| E286 | Rear central locking switch from inside |
| E325 | Sunroof Control Switch |
| E334 | Passenger seat tilt adjustment switch |
| E363 | Driver's seat longitudinal adjustment switch |
| E364/E365 | Driver/Passenger Seat Height Adjustment Switch |
| E491 | Welcome Light Switch |
| E579 | DRL switch |
Designations on "F" (sensors, sensor switches, activators)
| F | D/W brake lights |
| F1 | Low oil pressure switch |
| F2/F3 | Front left/right door contact switch |
| F4 | D/W reversing lights |
| F9 | Parking brake sensor |
| F10/F11 | Rear left/right door contact switch |
| F33 | Positive connection (30), in the wiring harness of the fuel injection system of the diesel engine |
| F34 | Low Brake Fluid Level Warning Light |
| F36 | Clutch pedal position sensor |
| F38 | Outside air temperature sensor |
| F47 | Brake pedal position sensor |
| F66/F77 | Low Coolant/Washer Fluid Level Warning Light |
| F96 | Altitude sensor |
| F123 | Luggage compartment lid contact switch for anti-theft system |
| F124 | Contact switch in the lock cylinder of the luggage compartment lid, anti-theft system, single lock |
| F125 | Multifunctional switch |
| F131/F132 | Front/Rear Left Single Lock Actuator |
| F133/F134 | Front/Rear Right Single Lock Actuator |
| F138 | Coil spring in the steering column |
| F147/F148 | Driver/Passenger Vanity Mirror Light Switch |
| F189 | Manual gear shift switch |
| F220/F221 | Front left/right single lock block |
| F222/F223 | Rear Left/Right Single Lock Block |
| F241 | Contact switch in the driver's door lock cylinder |
| F243/F244 | Left/right front door single lock actuator for full locking |
| F245/F246 | Left/right rear door single lock actuator for full locking |
| F248 | Release button for the trunk lid lock cylinder |
| F266 | Hood contact switch |
| F350 | Coil connector |
Designations on "G" (sensors)
| G | Fuel gauge sensor |
| G1 | Fuel gauge |
| G2 | Coolant temperature gauge sensor |
| G3 | Coolant temperature gauge |
| G5 | Tachometer |
| G6 | Fuel supply system filling pump |
| G18 | Temperature sensor |
| G21 | Speedometer |
| G28 | Crankshaft speed sensor |
| G31 | Turbo Boost Pressure Sensor |
| G34/G35 | Front Left/Right Brake Pad Wear Sensor |
| G39 | Lambda probe |
| G40 | SMR sensor |
| G42 | IAT sensor |
| G44/G45 | Rear/front right speed sensor |
| G46/G47 | Rear/front left speed sensor |
| G59/G60 | Driver/Passenger Seat Temperature Sensor |
| G61 | Knock Sensor 1 |
| G62 | Coolant temperature sensor |
| G64 | Ignition sensor |
| G65 | High pressure sensor |
| G66 | Knock Sensor 2 |
| G69 | Throttle position sensor |
| G70 | Mass Air Flow Sensor |
| G71 | Intake manifold pressure sensor |
| G76/G78 | Rear/front left vehicle level sensor |
| G79 | Accelerator pedal position sensor |
| G85 | Steering wheel angle sensor |
| G89 | Fresh air temperature sensor in the intake air duct |
| G93 | Transmission Oil Temperature Sensor |
| G94/G95 | Left/Right Rear Seat Temperature Sensor |
| G107 | Solar radiation intensity sensor |
| G112 | Potentiometer of the central flap actuator |
| G113 | Air Flow Damper Actuator Potentiometer |
| G128 | Front Right Seat Occupancy Sensor |
| G130 | Post-catalytic lambda probe |
| G135 | Windscreen blower flap actuator potentiometer |
| G143 | Fresh air flap actuator potentiometer |
| G150/G151 | Temperature sensor at the air conditioning system outlet left/right |
| G169 | Fuel gauge sensor 2 |
| G177/G178 | Rear left/right seat occupancy sensor |
| G179/G180 | Left/right side impact sensor |
| G182 | Transmission Input Shaft Speed Sensor |
| G183/G184 | Rear left/right glass breakage sensor |
| G185 | Accelerator pedal position sensor 2 |
| G186 | Throttle actuator (electric control) |
| G188 | Throttle actuator position sensor 2 |
| G189 | Overheating sensor |
| G195 | Transmission output shaft speed sensor |
| G200 | Lateral acceleration sensor |
| G201 | Sensor 1 of pressure in the hydraulic brake drive |
| G202 | Yaw rate sensor |
| G203/G204 | Outer/Inner Rear Left Parking Assist Sensor |
| G205/G206 | Indoor/outdoor parking assistance sensor |
| G219 | Driver's seat back position sensor |
| G220/G221 | Potentiometer for left/right temperature flap actuator |
| G222/G223 | Front left/right tire inflation pressure sensors |
| G224/G225 | Rear left/right tire inflation pressure sensors |
| G227 | Driver's seat longitudinal position sensor |
| G231/G232 | Driver's seat height/tilt sensor |
| G238 | Air quality sensor |
| G247 | Fuel pressure sensor |
| G251 | Longitudinal acceleration sensor |
| G252/G253 | Outer/Inner Right Front Parking Assist Sensor |
| G254/G255 | Inner/outer left front parking assistance sensor |
| G256/G257 | Rear left/right impact sensor |
| G261/G262 | Air temperature sensor in the left/right footwell |
| G263 | Evaporator outlet temperature sensor |
| G266 | Engine oil level and temperature sensor |
| G283/G284 | Left/Right Frontal Impact Sensor |
| G303 | Module 1 of reception and transmission in the interior rear-view mirror |
| G336 | Intake manifold flap potentiometer |
| G384 | Vehicle tilt sensor |
| G397 | Light and rain sensor |
| G399 | Light sensor |
| G410 | Low pressure fuel pressure sensor |
| G419 | ESP sensor unit |
| G452 | Pressure sensor for seat occupancy recognition |
| G453 | Seat belt tension sensor for seat occupancy recognition |
Designations with "H" (sound signals)
| H | Horn |
| H2/H7 | High/low frequency horn |
| H12 | Siren |
| H15 | Parking assistance system buzzer |
| H22 | Front Parking Assistance Buzzer |
Designations on "J" (electronic control units, relays)
| J... | Engine control units |
| J4 | 2-tone horn relay |
| J9 | Rear window heating relay |
| J59 | Contact Overflow Relay X |
| J104 | ABS control unit |
| J126 | Fresh air supply fan control unit |
| J136 | Electric seat and steering column control unit with memory function |
| J207 | Engine Start Permission Relay |
| J215/J216 | Left/Right Rear Seat Heating Control Unit |
| J217 | AT control unit |
| J234 | SRS control unit |
| J236 | Servotronic control unit |
| J245 | Upper hatch cover drive control unit |
| J255 | Climate control unit |
| J262 | Rear Curtain Drive Control Unit |
| J271 | ECM Motronic Power Relay |
| J285 | Control unit (with display) in the instrument panel insert |
| J293 | Radiator Fan Control Unit |
| J317 | Power relay terminal 30 |
| J338 | Throttle body module |
| J343/J344 | Left/right xenon headlight control unit |
| J345 | Trailer Detection Unit |
| J364 | Additional heater control unit |
| J386/J387 | Front left/right door control unit |
| J388/J389 | Rear left/right door control unit |
| J393 | Central control unit for comfort devices |
| J401 | Navigation system control unit with CD drive |
| J402 | Navigation system control unit |
| J415 | Television receiver navigation system |
| J431 | Headlight leveling control unit |
| J446 | Parking assistance system control unit |
| J489 | Radio controlled time receiver |
| J502 | Tire inflation pressure monitoring system control unit |
| J503 | Control unit with display for audio and navigation system |
| J507 | Voice control unit |
| J515 | Antenna selection control unit |
| J519 | On-board power supply control unit |
| J526 | Telephone/communication systems control unit |
| J527 | Steering Column Electronics Control Unit |
| J530 | Universal Remote Control Unit |
| J538 | Fuel pump control unit |
| J623 | ECM |
| J667/J668 | Left/right headlight ignition unit |
| J706 | Seat occupied detection control unit |
| J757 | Engine Component Power Relay |
| J810 | Driver's seat position control unit |
Designations starting with "K" (K/L, indicators)
| K2 | K/L of the charging system |
| K75 | K/L SRS |
| K133 | K/L full locking of a single lock |
| K136 | K/L parking assistance system |
| K145 | Front passenger airbag deactivation key |
Designations on "L" (lamps)
| L13/L14 | Left/right xenon lamp |
| L15 | Ashtray light |
| L22/L23 | Left/Right Fog Light Bulb |
| L28 | Cigarette lighter illumination lamp |
| L31 | Vanity mirror light |
| L42 | Socket illumination lamp |
| L44 | Seat heating switch illumination lamp |
| L46/L47 | Left/Right Rear Fog Light Bulb |
| L50 | Rear ashtray light |
| L67/L68 | Instrument panel left/central ventilation illumination lamp |
| L69 | Instrument panel right ventilation illumination lamp |
| L76 | Button illumination lamp |
| L108/L109 | Front left/right door release handle illumination lamp |
| L110/L111 | Rear left/right door release handle illumination lamp |
| L117 | Parking Assist Switch Illumination Lamp |
| L120 | Storage compartment illumination lamp |
| L121 | Cup holder illumination lamp |
| L122 | Coin box illumination lamp |
| L157 | Central armrest illumination lamp |
| L174/L175 | Left/Right DRL Lamp |
Designations on "M" (lamps)
| M1/M2 | Left Front Parking Light Bulb or Positive Connection 1 (30) in Seat Adjustment Wiring Harness |
| M1/M2 | Right rear parking light bulb or positive connection 2 (30) in seat adjustment wiring harness |
| M3 | Right front side light bulb |
| M4 | Left rear side light bulb |
| M5/M6 | Front/Rear Left Turn Signal Lamp |
| M7/M8 | Front/Rear Right Turn Signal Lamp |
| M9 | Left brake light bulb or connection in seat adjustment wiring harness |
| M10 | Right brake light bulb |
| M16/M17 | Left/Right Reverse Light Bulb |
| M18/M19 | Left/Right Turn Signal Repeater Lamp |
| M25 | High Level Brake Light Lamp |
| M29/M30 | Left headlight low/high beam lamp |
| M31/M32 | Right headlight low/high beam |
Designations on "N" (electromagnetic valves, injectors, actuators)
| N30-N33 | Injector cylinder 1-4 |
| N70 | Ignition coil 1 without output stage |
| N75 | Turbocharger Pressure Regulating Valve |
| N80 | Solenoid valve 1 EVAP |
| N88-N90 | Solenoid valve 1-3 |
| N95 | Driver's side airbag ignition |
| N99/N100 | Front Right ABS Inlet/Outlet Valve |
| N101/N102 | Front Left ABS Inlet/Outlet Valve |
| N110 | Electromagnetic valve of the selector lever lock |
| N119 | Solenoid valve servotronic |
| N127 | Ignition coil 2 with output stage |
| N131/N132 | Front passenger side airbag 1/2 fuse |
| N133/N134 | Rear Right/Left ABS Inlet Valve |
| N135/N136 | Rear Right/Left ABS Outlet Valve |
| N144 | Solenoid valve of the left electrohydraulic engine support |
| N153/N154 | Driver/Passenger Seat Belt Pretensioner Ignition 1 |
| N196/N197 | Rear left/right seat belt emergency tensioner ignition |
| N198 | Central rear seat belt emergency tensioner ignition |
| N199/N₂00 | Front left/right side airbag ignition |
| N₂01/N₂02 | Rear left/right side airbag ignition |
| N₂05 | Intake camshaft adjustment valve 1 |
| N₂15-N₂18 | Valve 1-4 pressure regulation AT |
| N₂25/N₂26 | Valve 1/2 ESP switch |
| N₂27/N₂28 | ESP High Pressure Valve 1/2 |
| N₂49 | Turbocharger Air Recirculation Valve |
| N₂50 | Driver's side airbag 2 detonated |
| N₂51/N₂52 | Left/right inflatable curtain fuse |
| N₂53 | Battery insulation fuse |
| N₂76 | Fuel pressure regulating valve |
| N₂79 | Heater coolant shut-off valve |
| N₂80 | Refrigeration compressor control valve |
| N₂90 | Fuel flow metering valve |
| N₂91/N₂92 | Ignition coil 3/4 with output stage |
| N347/N348 | Solenoid valve for switching between low and high beam on the left/right headlight |
Designations on "OQ" (connections, candles)
| O1 | Positive connection (30), in seat heating wiring harness |
| P | Spark plug connector |
| Q | Spark plugs |
| Q8 | Glow plug with ignition sensor |
Designations on "R" (Components of the audio, navigation and communication systems)
| R | Radio |
| R1 | Antenna connection |
| R11 | Antenna |
| R12 | Amplifier |
| R15/R17 | Rear Left/Right Subwoofer |
| R21/R23 | Front Left/Right Subwoofer |
| R26/R27 | Front left/right midrange and tweeter |
| R34/R35 | Rear left/right midrange and tweeter |
| R36 | Telephone transceiver unit |
| R37 | Handset |
| R38 | Phone microphone |
| R41 | CD changer |
| R47 | Antenna remote control unit of single lock and anti-theft alarm |
| R50 | Navigation system antenna (GPS) |
| R52/R53 | Connection (58s), in the front left/right door wiring harness |
| R54/R55 | Connection (58s), in the rear left/right door wiring harness |
| R64 | Additional heater remote control receiver |
| R65 | Telephone antenna |
| R70 | Internal speaker (in the center of the dashboard) |
| R73 | Fax module |
| R74 | Internal microphone |
| R86 | Mobile phone antenna booster |
| R90 | Additional antenna for communication systems |
| R91 | Additional speaker for communication systems |
| R96 | Rear antenna for tire pressure monitoring system |
| R100 | Low frequency speaker |
| R108/R109 | Left/Right Antenna Module |
| R110 | Navigation system antenna filter |
| R126 | Phone bracket |
| R152 | Bluetooth Antenna |
| R192 | IPod holder |
| R193 | USB connector holder |
Designations with "S" (Fuses)
| S1-S22 | Fuse in the mounting block |
| S24 | Air conditioning compressor overheating fuse |
| S37 | Electric window lifter fuse |
| S42 | Engine cooling system fan fuse |
| S45 | Fuse #2 for overheating of the driver's seat electric drive |
| S46 | Fuse #1 for overheating of the electric drive of the front right seat |
| S87 | Trailer electrical equipment fuse |
| S88 | Main (strip) fuse |
| S100 | Rear curtain electric drive overheating fuse |
| S102 | ECM fuse |
| S123 | ABS Control Unit Fuse #1 |
| S126 | Additional heater fuse #1 |
| S131 | Fuse #1 |
| S214 | Engine cooling system fan fuse |
| S223-S244 | Fuse in the mounting block |
| S280 | Fuse #2 for electric window lifter |
| S282 | Engine electronics fuse |
| S286 | Additional fuse AT |
| S328 | Additional heater fuse #2 |
| S344/S345 | Engine Electronics Fuse #2/#3 |
Designations on "T" and "U" (connectors, sockets)
| T1... | 1-pin connector |
| T2... | 2-pin connector etc. |
| U | Power socket |
| U1 | Cigarette lighter or connection (50) in the AT wiring harness |
| U2 | Connection 1 (15), in the AT wiring harness |
| U5 | 12V socket |
| U10 | Trailer wiring connection socket |
Designations on "V" (electric motors, activators, fans, pumps)
| V | Windscreen wiper motor |
| V1 | Electric motor for the top hatch cover |
| V2 | Fresh air supply fan |
| V5 | Washer fluid supply pump |
| V6 | Air mixing fan |
| V11 | Headlight washer pump |
| V12 | Rear window wiper motor |
| V14 | Compound (shielding) in the wiring harness of the CD changer |
| V15 | Rear window lifter electric motor |
| V16 | Compound (shielding) in the telephone wiring harness |
| V17/V25 | Left/right outside mirror electric motor |
| V26/V27 | Rear left/right window lifter electric motor |
| V28 | Connection 1, in the audio unit wiring harness |
| V28/V31 | Electric motor for longitudinal movement of driver/passenger seat |
| V32 | Positive connection (30), in the telephone wiring harness |
| V39 | ABS Reverse Flow Pump |
| V44 | Connection (FAX), in the communication wiring harness |
| V45/V46 | Electric motor for adjusting the driver/passenger seat backrest |
| V48 | Left headlight tilt adjustment motor |
| V49 | Right headlight tilt motor or connection (low frequency, NF+) in communication wiring harness |
| V50 | Connection (low frequency, NF-), in the wiring harness of the communication |
| V54 | Measuring pump |
| V55 | Circulation pump |
| V56/V57 | Electric motor for single lock front left/right door |
| V70 | Electric motor for central flap |
| V71 | Electric motor for air flow control flap |
| V91 | Rear curtain electric motor |
| V97 | Electric motor for single lock of rear right door |
| V107 | Electric motor for window defroster flap |
| V113 | Electric motor for fresh air supply flap |
| V115 | Electric motor for single lock of rear left door |
| V121/V122 | Left/right mirror folding electric motor |
| V125/V126 | Electric motor for longitudinal adjustment of driver/passenger seat lumbar support |
| V129/V130 | Driver/Passenger Seat Lumbar Support Height Adjustment Electric Motor |
| V139 | Electric motor for opening the trunk lid |
| V144 | Fuel system diagnostic pump |
| V149/V150 | Electric motor for adjusting left/right mirror |
| V155 | Electric motor for locking the fuel filler neck |
| V157 | Intake manifold flap motor |
| V158/V159 | Electric motor left/right temperature flap |
| V161/V162 | Electric motor for full locking of front left/right door |
| V163/V164 | Electric motor for full locking of rear left/right door |
| V243/V244 | Driver/Passenger Seat Tilt Adjustment Electric Motor |
| V245 | Driver/Passenger Seat Height Adjustment Electric Motor |
| V318/V319 | Left/right headlight turn motor |
Designations on "W" and "X" (lamps)
| W, W1 | Front interior light |
| W3 | Luggage compartment lighting |
| W6 | Glove compartment lighting |
| W9/W10 | Left/Right Footwell Lighting |
| W11/W12 | Rear left/right reading lamp |
| W13/W19 | Front right/left reading lamp |
| W30 | Driver's door open warning lamp |
| W31/W32 | Front left/right door sill light |
| W33/W34 | Rear left/right door sill light |
| W36 | Front right door open warning light |
| W37/W38 | Rear left/right door open warning light |
| W43 | Rear interior light |
| W45/W46 | Rear left/right footwell lighting |
| W51 | Light in the trunk lid |
| X | License plate light |
| X65 | Compound (parking assistance), in the front bumper wiring harness |
Designations for "Y" and "Z" (heating elements and other)
| Y7 | Auto-dimming interior rearview mirror |
| Y8 | Radio-set clock |
| Z1 | Rear window heating |
| Z2 | Heated windshield |
| Z4/Z5 | Left/right heated rear view mirror |
| Z6/Z6 | Heated driver's seat cushion/backrest |
| Z8/Z9 | Heated front passenger seat cushion/backrest |
| Z10/Z11 | Rear left seat cushion/backrest heating |
| Z12/Z13 | Heated rear right seat cushion/backrest |
| Z19 | Lambda probe heating |
| Z20/Z21 | Heating of left/right windshield washer nozzle |
| Z24 | Rear window heating with antenna in glass |
| Z29 | Post-catalytic lambda probe heating 1 |
| Z31/Z33 | Heated driver/front passenger seat cushion cross support |
| Z36 | Heated steering wheel |
| Z40/Z41 | Heated 2 cross support driver/passenger seat |
This article was copied from an online resource AudiManual.ru