| A | Battery |
| F | Brake light switch |
| F96 | Altitude sender, near brake servo unit |
| G28 | Engine speed sender |
| G70 | Air mass meter, in engine compartment, front right |
| G72 | Intake manifold temperature sender |
| J248 | Diesel direct injection system control unit in plenum chamber, centre |
| M9 | Brake light bulb, left |
| T1a | Single connector, behind relay plate |
| T1y | Single connector, above the relay plate |
| T2n | 2-pin connector, behind relay plate |
| T3m | 3-pin connector, on engine |
| T68 | 68-pin connector |
| TV14 | Terminal for self - diagnosis connection V.A.G 1551 see Additional current flow diagram No. 63 - |
| 156 | Earth connection, in diesel direct injection wiring harness |
| 220 | Earth connection (sender earth), in engine wiring harness |
| E45 | Cruise control system switch |
| F4 | Reversing light switch |
| F36 | Clutch pedal switch |
| F47 | Cruise control system brake pedal switch/diesel direct inj. system |
| G80 | Needle lift sender |
| G81 | Fuel temperature sender |
| G149 | Modulating piston movement sender |
| J248 | Diesel direct injection system control unit, in plenum chamber, centre |
| L19 | Gear selector light bulb (only models with automatic gearbox) |
| N146 | Metering adjuster |
| T2c | 2-pin connector, on engine |
| T4a | 4-pin connector, behind steering column switch trim |
| T4b | 4-pin connector, next to steering column |
| T8 | 8-pin connector |
| T24 | 24-pin connector, on engine |
| T68 | 68-pin connector, on control unit |
| TV5 | Terminal 15a junction box |
| 220 | Earth connection (sender earth), in engine wiring harness |
| * | Only models with cruise control system (CCS) |
| A | Battery |
| G79 | Accelerator pedal position sender |
| J248 | Diesel direct injection system control unit, in plenum chamber, centre |
| J317 | Terminal 30 voltage supply relay |
| J325 | Relay for coolant heater elements, on bulkhead centre |
| J359 | Low heat output relay |
| J360 | High heat output relay |
| N18 | Exhaust gas recirculation valve, in engine compartment, front right |
| Q7 | Coolant heating elements |
| S109 | Coolant heater elements fuse |
| T6an | 6-pin connector, in footwell, front left |
| T24 | 24-pin connector, on engine |
| T68 | 68-pin connector, on control unit |
| TV13 | Terminal for speed signal |
| F25 | Connection -1-, in diesel direct injection system wiring harness |
| F32 | Connection (glow plugs - coolant), in diesel direct injection system wiring harness |
| J52 | Glow plug relay |
| J248 | Diesel direct injection system control unit, in plenum chamber, centre |
| N75 | Charge pressure control solenoid valve |
| N108 | Commencement of injection valve |
| N109 | Fuel shut-off valve |
| Q6 | Glow plugs - engine |
| S39 | Strip fuse for glow plugs |
| T3 | 3-pin connector, in engine compartment, centret |
| T24 | 24-pin connector, on engine |
| T68 | 68-pin connector, on control unit |
| F26 | Connection -2-, in diesel direct injection system wiring harness |
| F31 | Connection (glow plugs - engine), in diesel direct injection system wiring harness |
| E86 | Multi-function display call-up button |
| E109 | Multi-function display, memory switch |
| F1 | Oil pressure switch |
| F22 | Oil pressure switch (0.3 bar) |
| G | Fuel gauge sender |
| G2 | Coolant temperature gauge sender |
| G17 | Ambient temperature sensor |
| G22 | Speedometer sender (hall sender, on gearbox) |
| G27 | Engine temperature sender |
| T2s | 2-pin connector, behind relay plate |
| T4b | 4-pin connector, on dash panel insert |
| T24 | 24-pin connector, on engine |
| 15 | Earth point, on cylinder head |
| 131 | Earth connection -2-, in engine compartment wiring harness |
| E20 | Switches and instruments, lighting control |
| J285 | Control unit with display in dash panel insert |
| K1 | Main beam warning lamp |
| K2 | Alternator warning lamp |
| K29 | Glow period warning lamp |
| K65 | Left turn signal warning lamp |
| K94 | Right turn signal warning lamp |
| L10 | Dash panel insert light bulb |
| L39 | Heated rear window switch bulb |
| L75 | Digital display illumination |
| M5 | Turn signal bulb, front left |
| M7 | Turn signal bulb, front |
| T2b | 2-pin connector, rear suspension strut, right |
| T28 | 28-pin connector, on dash panel insert |
| TV4 | Terminal 15 junction box |
| TV8 | Terminal 58b junction box |
| Y | Analogue clock |
| A11 | Positive (+) connection (58b), in instruments wiring harness |
| E4 | Headlight dipper/flasher switch |
| G1 | Fuel gauge |
| G3 | Coolant temperature gauge |
| G5 | Rev. counter |
| G8 | Oil temperature sender |
| J285 | Control unit with display in dash panel insert |
| K3 | Oil pressure warning lamp |
| K7 | Dual circuit brake/handbrake warning lamp |
| K28 | Coolant temperature/coolant shortage warning lamp |
| L1 | Twin filament bulb for headlight, left |
| L2 | Twin filament bulb for headlight, right |
| T1e | Single connector, behind relay plate |
| T24 | 24-pin connector, on engine |
| T28 | 28-pin connector, on dash panel insert |
| TV13 | Terminal for speed signal |
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