400 and Up
No. Name Location403 Solenoid valve, swirl throttle in front of coolant reservoir
407 Intake air temperature sensor petrol: on charge air pipe (integrated in 688)
408 Engine speed sensor on RH side of engine by crankshaft pulley
409a Relay, parking heater on main relay board in engine bay
409b Relay, auxiliary heater on main relay board in dashboard
410 Heater element, fuel filter in fuel filter in tank
411 Switch, clutch, starter motor immobilizer on bulkhead partition by clutch pedal
431 Manifold absolute pressure sensor 4-cyl.: on intake manifold to right of throttle body
431 Manifold absolute pressure sensor V6: on intake manifold
434a Solenoid, central locking system, filler cap by filler cap in luggage compartment
439 Solenoid, selector lever, SHIFT LOCK in console for automatic transmission gear selector lever
440 Microswitch, selector lever in console for automatic transmission gear selector lever
445 Data link connector, 16-pin, CARB under dashboard by steering column
446D Relay, electrically adjustable driver's seat in seat under cushion
446P Relay, electrically adjustable passenger seat in seat under cushion
449 Switch, TCS in dashboard between steering wheel and centre dashboard vent
451 Glass breakage sensor in centre roof console
451F Glass breakage sensor, front in centre roof console
451R Glass breakage sensor, rear in rear roof console
453 Motor, pump, engine coolant circulation in engine bay behind power brake servo
456 Aerial, remote control, central locking system in floor console next to ashtray
457 Tilt sensor under RH seat
461 Connection, electronic road tolls under RH dashboard loudspeaker grille
463 Aerial unit, immobilizer by ignition switch
466ha Connection, analogue, OnStar 4D: by connector under parcel shelf
466hb Connection, digital, OnStar 4D: black connector under parcel shelf
467 Antenna, GPS on roof
467h Connection, GPS antenna in dashboard
469h Connection, OnStar control panel to right of centre dashboard vent
501 Main fuse box, maxi fuses under battery cover
502A TCM control module, connector A behind glove box
502B TCM control module, connector B behind glove box
506 Switch, WINTER next to gear selector lever
511 Relay, electrically heated rear seat on main relay board in dashboard
514a Switch, simultaneous central locking system to left of gear lever
517 Relay, starter relay on main relay board in dashboard
520 SPORT indicator lamp in main instrument unit
523 CHECK GEARBOX indicator lamp in main instrument unit
531 Control valves, TCM underneath gearbox
532 Speed sensor, input shaft, gearbox on the gearbox
533 Speed sensor, output shaft, gearbox on the gearbox
535 Transmission fluid temperature sensor underneath gearbox
537 Switch, SPORT on top of gear selector lever
538 Switch, door mirror adjustment in switch panel space between the steering wheel and driver's door
539 Barometric pressure sensor on bulkhead by connector H42-5
540 Main instrument unit in front of driver in dashboard
541 SID In the centre of the dashboard
544 Indicator lamp INFO DISPL in main instrument unit
545 Warning lamp, central warning in main instrument unit
546 WINTER indicator lamp in main instrument unit
547 Control module, ABS integrated in hydraulic unit behind main fuse box in engine bay
551 Motor, door mirror adjustment in door mirror
555 Camshaft position sensor on RH side of front cylinder bank
558 Turbo pressure gauge, main instrument unit in main instrument unit
559 Temperature sensor, engine oil diesel only
581 Solenoid valve, heat exchanger on front edge of heater housing
585 Pressure sensor, EVAP on fuel tank by fuel pump
588 Solenoid valve, EVAP shut-off by fuel filler pipe
589 Control module, Trionic 4-cyl petrol in space (cabin side) in front of the windscreen on the passenger side
592Fa Heated oxygen sensor 1 in front of the catalytic converter
592Ra Heated oxygen sensor 2 after the catalytic converter
594 Relay, tailgate motor on main relay board in dashboard
595K PSG16 control module, connector K on front of engine
595M PSG16 control module, connector M on front of engine
596 Control module, glow plug between mass air flow sensor and power steering fluid reservoir
596A Control module, glow plug, contact A between mass air flow sensor and power steering fluid reservoir
596B Control module, glow plug, contact B between mass air flow sensor and power steering fluid reservoir
597 Auxiliary heater under hydraulic unit
597a Control module, auxiliary heater in auxiliary heater
597b Motor, auxiliary heater combustion air fan in auxiliary heater
597c Glow plug, auxiliary heater in auxiliary heater
597d Flame detector, auxiliary heater in auxiliary heater
597e Temperature sensor, auxiliary heater in auxiliary heater
597f Overheating protection, auxiliary heater in auxiliary heater
603 Pressure sensor, charge air petrol: on charge air pipe (integrated in 688)
604 Actuator unit, throttle body integrated in throttle body
605 Solenoid valve, by-pass turbo in engine bay on bulkhead partition wall by connector H42-5
606 EGR control valve on the front of the throttle housing
606A EGR control valve, connector A on RH side of engine between cylinder banks (lower connector)
606B EGR control valve, connector B on RH side of engine between cylinder banks (upper connector)
607 Solenoid, limp-home on throttle body
608 Control module, Trionic V6 petrol in space (cabin side) in front of the windscreen on the passenger side
611 Control module PMM above glove box
613FL Lamp, floor lighting, front left under dashboard at front of floor well
613FR Lamp, floor lighting, front right under dashboard at front of floor well
614P Sensor, occupied front passenger seat in passenger seat cushion
615LH Switch, seat ventilation, LH seat on bottom of dashboard
615RH Switch, seat ventilation, RH seat on bottom of dashboard
616LH Motor, fan, backrest ventilation, LH seat in seat
616RH Motor, backrest ventilation fan, RH seat in seat
617LH Motor, fan, seat ventilation, LH seat in seat
617RH Motor, seat ventilation fan, RH seat in seat
618 Rheostat, intermittent wiper integrated in windscreen wiper stalk switch to right of steering column
619a Connection, airbag signal by telephone connector
619b Connection, airbag signal, OnStar, connect to 619a by telephone connector
620 Pressure sensor, A/C at bottom of condenser right-hand end
621 Temperature sensor, A/C evaporator below connector bracket on passenger side of heating and ventilation unit
622 Microswitch, tailgate lock in tailgate lock
623 Switch, filler cap lock In driver's door
624 Aerial amplifier, radio on RH C-pillar
624RL Antenna amplifier, radio, LH above LH rear side window
624RR Antenna amplifier, radio, RH above RH rear side window
625 Window antenna, radio in rear window glass
625RL Window antenna, radio, LH, in LH rear side window glass
625RR Window antenna, radio, RH in glass on RH side behind side window
627 Antenna, mobile telephone on roof
627h Connection, antenna, mobile telephone behind radio box
628 Control module, DICE LHD: above the dashboard main relay board
629 Relay, filler cap on main relay board in dashboard
630A SPA control module, connector A 4D: on LH side of the luggage compartment behind the backrest member
630A SPA control module, connector A 5D: under front floor in luggage compartment
630B SPA control module, connector B 4D: on LH side of the luggage compartment behind the backrest member
630B SPA control module, connector B 5D: under front floor in luggage compartment
631RL Range sensor, ultrasonic, outer left to left on rear bumper
631RLC Range sensor, ultrasonic, centre left to left on rear bumper
631RR Range sensor, ultrasonic, outer right to right on rear bumper
631RRC Range sensor, ultrasonic, centre right to right on rear bumper
632 Control module, TWICE under LH seat
633 Switch unit, steering wheel on steering wheel rim
633a Switch, preset radio tuning/cassette direction/CD to left on steering wheel rim
633b Switch, seek forward to left on steering wheel rim
633c Switch, seek backwards to left on steering wheel rim
633d Switch, select radio/tape/CD to right on steering wheel rim
633e Switch, increase volume to right on steering wheel rim
633f Switch, decrease volume to right on steering wheel rim
634 Microphone, mobile phone in front roof console
635 Navigation unit 4D: under parcel shelf
635 Navigation unit 5D: in left-hand compartment under luggage compartment floor
635h Navigation system connector by RH rear wheel housing
636LH Resistor, seat ventilation, LH seat in seat
636RH Resistor, seat ventilation, RH seat in seat
637 Control module, ADM in rear-view mirror
638 Switch, ADM in rear-view mirror
639 Electro-chromatic layer, rear-view mirror on the mirror glass
639D Electro-chromatic layer, door mirror, driver on the mirror glass
639P Electro-chromatic layer, door mirror, passenger on the mirror glass
640 Relay, limp-home on main relay board in dashboard
641 Relay, diesel preheating on main relay board in dashboard
644 Filter, antenna ground on LH C-pillar
645a Indicator lamp, automatic transmission P-position indicator in main instrument unit
645b Indicator lamp, automatic transmission R-position indicator in main instrument unit
645c Indicator lamp, automatic transmission N-position indicator in main instrument unit
645d Indicator lamp, automatic transmission D-position indicator in main instrument unit
645f Indicator lamp, automatic transmission 3-position indicator in main instrument unit
645h Indicator lamp, automatic transmission 4-position indicator in main instrument unit
645i Indicator lamp, automatic transmission L-position indicator in main instrument unit
649 Rain sensor on windscreen by rear-view mirror
650 Rain sensor relay in main relay board in engine bay
651 Temperature sensor, fuel on rear cylinder bank by vacuum pump
652a Fuel pressure control valve, common rail lower valve on rear end of fuel pump
652b Fuel pressure control valve, common rail upper valve on rear end of fuel pump
653 Fuel pressure sensor, common rail on RH side of common rail
654 Position sensor guide rails, turbocharger in turbocharger vacuum unit
655A Control module, V6 diesel, connector A in space (cabin side) in front of the windscreen on the passenger side
655B Control module, V6 diesel, connector B in space (cabin side) in front of the windscreen on the passenger side
656A Power stage, injectors, connector A behind glove box
656B Power stage, injectors, connector B behind glove box
657 Steering wheel tilt sensor in cabin below steering column mounting
658 Gyro sensor in front of gear lever housing
659 Input brake pressure sensor on ESP unit
660 ESP switch in dashboard between steering wheel and centre dashboard vent
661 Lamp, headlamp flasher in headlamp
661FL Lamp, headlamp flasher, LH in LH headlamp
661FR Lamp, headlamp flasher, RH in RH headlamp
662 AHL indicator lamp in main instrument unit
663FL Headlamp, LH to left of radiator
663FR Headlamp, RH to right of radiator
665FL Solenoid, xenon lamp screen, left in LH headlamp
665FR Solenoid, xenon lamp screen, right in RH headlamp
666 Relay, headlamp flasher on main relay board in engine bay
667 Relay, high-pressure washer fluid pump, headlamps on main relay board in engine bay
668 Motor, high pressure pump, headlamps on washer fluid reservoir
669D Driver seat position sensor in seat
669P Passenger seat position sensor in seat
671 ESP control module integrated in hydraulic unit behind main fuse box in engine bay
678 Control panel, navigation/audio in dashboard
680D Door mirror, driver's side on door
680P Door mirror, passenger side on door
681 Rear-view mirror on windscreen
682FL Control module, LH headlamp in LH headlamp
682FR Control module, RH headlamp in RH headlamp
683 Solenoid valve, engine shut-off in front of coolant reservoir
688 Sensor, intake air on charge air pipe
693 Switch, navigation/phone behind the glove box
694 Signal converter, I-bus on rear of control panel
704F Load angle sensor, front by front right axle
704R Load angle sensor, rear by rear right axle
713 Compass in rear-view mirror
735 Remote control, garage door opener, GDO in rear-view mirror