| A | Battery |
| B | Starter |
| D | Ignition/starter switch |
| S163 | Fuse -2- (30), in fuse box/battery |
| S268 | Fuse -10- (30), in fuse box/battery |
 ">SB10 | ">Fuse -10- in fuse box |
| T3 | 3-pin connector, grey, on left end wall |
| T6d | 6-pin connector, blue, on left end wall |
| T12a | 12-pin connector, white, on left end wall |
| T18 | 18-pin connector, brown, on onboard power supply control unit |
| 1 | Earth strap, battery - body |
| A15 | Positive (+) connection (15), in dash panel wiring harness |
| A32 | Positive (+) connection (30), in dash panel wiring harness |
| A40 | Positive (+) connection -1- (30), in dash panel wiring harness |
| A56 | Positive (+) connection -2- (30), in dash panel wiring harness |
| P1 | Positive (+) connection (30), in fuse box/battery |
| L1 | Twin filament bulb for headlight, left |
| M1 | Side light bulb, left |
| M5 | Turn signal bulb, front left |
| M18 | Side turn signal bulb, left |
| ">SB22 | ">Fuse -22- in fuse box |
| ">SB53 | ">Fuse -53- in fuse box |
| T10c | 10-pin connector, on headlight, left |
| T11a | 11-pin connector, white, on left end wall |
| T12a | 12-pin connector, white, on left end wall |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| A9 | Positive (+) connection (56b), in dash panel wiring harness |
| B141 | Positive (+) connection -1- (56a), in interior wiring harness |
| D58 | Connection (left turn signal), in engine compartment wiring harness |
| D152 | Positive (+) connection -1- (56b), in engine compartment wiring harness |
| L2 | Twin filament bulb for headlight, right |
| M3 | Side light bulb, right |
| M7 | Turn signal bulb, front right |
| M19 | Side turn signal bulb, right |
| ">SB21 | ">Fuse -21- in fuse box |
| ">SB43 | ">Fuse -43- in fuse box |
| T10d | 10-pin connector, on headlight, right |
| T11a | 11-pin connector, white, on left end wall |
| T12a | 12-pin connector, white, on left end wall |
| 29 | Earth point, in engine compartment, behind left the battery (suspension strut) |
| 85 | Earth connection -1-, in engine compartment wiring harness |
| A9 | Positive (+) connection (56b), in dash panel wiring harness |
| B141 | Positive (+) connection -1- (56a), in interior wiring harness |
| D57 | Connection (right turn signal), in engine compartment wiring harness |
| D153 | Positive (+) connection -2- (56b), in engine compartment wiring harness |
| F | Brake light switch |
| M6 | Turn signal bulb, rear left |
| M8 | Turn signal bulb, rear right |
| M21 | Brake and tail light bulb, left |
| M22 | Brake and tail light bulb, right |
| M25 | High level brake light bulb |
| T5b | 5-pin connector, pink, in left luggage compartment |
| T16b | 16-pin connector, black, on onboard power supply control unit |
| 50 | Earth point, on left luggage compartment |
| 51 | Earth point, in right luggage compartment |
| 249 | Earth connection -2-, in interior wiring harness |
| 287 | Earth connection, in rear lid prewiring wiring harness |
| B131 | Connection (54), in interior wiring harness |
| B143 | Positive (+) connection (58R), in interior wiring harness |
| B144 | Positive (+) connection (58L), in interior wiring harness |
| W6 | Connection (left turn signal), in rear wiring harness |
| W7 | Connection (right turn signal), in rear wiring harness |
| E165 | Tailgate/boot lid release switch |
| F4 | Reversing light switch |
| F5 | Luggage compartment light switch |
| L46 | Rear fog light bulb, left |
| M2 | Tail light bulb, right |
| M4 | Tail light bulb, left |
| M16 | Reversing light bulb, left |
| M17 | Reversing light bulb, right |
| T5b | 5-pin connector, pink, in left luggage compartment |
| T5c | 5-pin connector, black, in left luggage compartment |
| T5f | 5-pin connector, pink, in tailgate/boot lid |
| T5g | 5-pin connector, brown, in tailgate/boot lid |
| T6d | 6-pin connector, blue, on left end wall |
| T6g | 6-pin connector, red, on onboard power supply control unit |
| T6k | 6-pin connector, black, on onboard power supply control unit |
| 218 | Earth connection, in tailgate/boot lid wiring harness |
| A87 | Connection (RL), in dash panel wiring harness |
| W33 | Connection (reversing light), in tailgate/boot lid wiring harness |
| * | Only models without rear fog light |
| ** | Only models with rear fog light |
| E20 | Switches and instruments light regulator |
| E102 | Headlight range control adjuster |
| ">SB12 | ">Fuse -12- in fuse box |
| ">SB23 | ">Fuse -23- in fuse box |
| T10c | 10-pin connector, on headlight, left |
| T10d | 10-pin connector, on headlight, right |
| T12a | 12-pin connector, white, on left end wall |
| V48 | Headlight range control motor, left |
| V49 | Headlight range control motor, right |
| X | Number plate light |
| 50 | Earth point, in left luggage compartment |
| 238 | Earth connection -1-, in interior wiring harness |
| A3 | Positive (+) connection (58), in dash panel wiring harness |
| D96 | Connection (headlight range control), in engine compartment wiring harness |
| F2 | Door contact switch, driver's side |
| F3 | Door contact switch, front passenger's side |
| F10 | Rear left door contact switch |
| F11 | Rear right door contact switch |
| T4 | 4-pin connector, black, on part of left A-pillar |
| T4a | 4-pin connector, black, on part of right A-pillar |
| T4d | 4-pin connector, black, on left B pillar |
| T4e | 4-pin connector, black, on right B pillar |
| T6e | 6-pin connector, brown, on right A-pillar |
| T6l | 6-pin connector, brown, on left B-pillar |
| T6m | 6-pin connector, brown, on right B-pillar |
| T6o | 6-pin connector, brown, on left A-pillar |
| T18 | 18-pin connector, brown, on onboard power supply control unit |
| 81 | Earth connection -1-, in dash panel wiring harness |
| 205 | Earth connection, in door wiring harness - driver's side |
| 206 | Earth connection, in door wiring harness - front passenger's side |
| 207 | Earth connection, in rear left door wiring harness |
| 208 | Earth connection, in rear right wing door wiring harness |
| 267 | Earth connection -2-, in door wiring harness - driver's side |
| * | Only models with 4-door equipment |
| ** | Only models without central locking |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 7 | - | S179-Fuse 7 (30) in fuse holder on battery | 25 A | - | ABS | 30 |
| 8 | - | S180-Fuse 8 (30) in fuse holder on battery | 30 A | - | Radiator fan | 30 |
| 9 | - | S267-Fuse 9 (30) in fuse holder on battery | -
10 A | - | Vacant (applicable up to April 2004)
ABS (applicable from May 2004) | 30 |
| 10 | - | S268-Fuse 10 (30) in fuse holder on battery | 5 A | - | Onboard supply control unit | 30 |
| 11 | - | S269-Fuse 11 (30) in fuse holder on battery | 5 A | - | Radiator fan control unit | 30 |
| 12 | - | S270-Fuse 12 (30) in fuse holder on battery | - | - | Vacant | 30 |
| 13 | - | S271-Fuse 13 (30) in fuse holder on battery | 5 A | - | Automatic gearbox control unit | 30 |
| 14 | - | S272-Fuse 14 (30) in fuse holder on battery | - | - | Vacant | 30 |
| 15 | - | S273-Fuse 15 (30) in fuse holder on battery | - | - | Vacant | 30 |
| 16 | - | S274-Fuse 16 (30) in fuse holder on battery | - | - | Vacant | 30 |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 1 | - | S162-Fuse 1 (30) in fuse holder on battery | 175 A | - | Alternator/ starter | 30 |
| 2 | - | S163-Fuse 2 (30) in fuse holder on battery | 110 A | - | Interior | 30 |
| 3 | - | S164-Fuse 3 (30) in fuse holder on battery | 40 A | - | Radiator fan | 30 |
| 4 | - | S176-Fuse 4 (30) in fuse holder on battery | 40 A | - | ABS | 30 |
| 5 | - | S177-Fuse 5 (30) in fuse holder on battery | 50 A | - | Power assisted steering pump | 30 |
| 6 | - | S178-Fuse 6 (30) in fuse holder on battery | 50 A | - | Secondary air pump (engines BJX, BKV, BBU and BLZ)
Glow plugs (TDI engines) | 30 |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 7 | - | S179-Fuse 7 (30) in fuse holder on battery | 25 A | - | ABS | 30 |
| 8 | - | S180-Fuse 8 (30) in fuse holder on battery | 30 A | - | Radiator fan | 30 |
| 9 | - | S267-Fuse 9 (30) in fuse holder on battery | 5 A | - | Radiator fan control unit | 30 |
| 10 | - | S268-Fuse 10 (30) in fuse holder on battery | 15 A | - | ABS | 30 |
| 11 | - | S269-Fuse 11 (30) in fuse holder on battery | 5 A | - | Onboard supply control unit | 30 |
| 12 | - | S270-Fuse 12 (30) in fuse holder on battery | 5 A | - | Diesel direct injection system control unit (engine BMT)
Automatic gearbox control unit | 30 |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 1 | - | SB1 - Fuse 1 on fuse holder B | -
15 A | - | Vacant (applicable up to October 2005)
Continued coolant circulation pump (applicable from November 2005)
| |
| 2 | - | SB2 - Fuse 2 on fuse holder B | 10 A | - | Operating unit for ABS/ ESP | |
| 3 | - | SB3 - Fuse 3 on fuse holder B | - | - | Vacant | |
| 4 | - | SB4 - Fuse 4 on fuse holder B | 5 A | - | Brake light, clutch switch | |
| 5 | - | SB5 - Fuse 5 on fuse holder B | 5 A | - | Operating unit motor | |
| 6 | - | SB6 - Fuse 6 on fuse holder B | 5 A | - | Side light right | |
| 7 | - | SB7 - Fuse 7 on fuse holder B | 5 A | - | Side light left | |
| 8 | - | SB8 - Fuse 8 on fuse holder B | 5 A | - | Onboard power supply control unit (XP3/6): Heated exterior mirror | |
| 9 | - | SB9 - Fuse 9 on fuse holder B | 10 A | - | Lambda probe | |
| 10 | - | SB10 - Fuse 10 on fuse holder B | 5 A | - | Signal S: Onboard supply control unit, radio | |
| 11 | - | SB11 - Fuse 11 on fuse holder B | -
5 A | - | Vacant (applicable up to April 2005)
Electric folding exterior mirror (applicable from May 2005) | |
| 12 | - | SB12 - Fuse 12 on fuse holder B | 5 A | - | Headlight range control adjustment potentiometer | |
| 13 | - | SB13 - Fuse 13 on fuse holder B | 5 A | - | Power steering, electronic exhaust gas recirculation (petrol), heater element
(petrol)
Air mass meter (TDI) (applicable up to October 2006) | |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 14 | - | SB14 - Fuse 14 on fuse holder B | 10 A | - | Additional heater, ACF valve (petrol), load signal potentiometer, exhaust gas recirculation, throttle butterfly valve, fuel pump (diesel)
| |
| 15 | - | SB15 - Fuse 15 on fuse holder B | 10 A | - | Automatic gearbox control unit | |
| 16 | - | SB16 - Fuse 16 on fuse holder B | 15 A | - | Seat heater | |
| 17 | - | SB17 - Fuse 17 on fuse holder B | 5 A | - | Operating unit motor
Air mass meter (TDI) (applicable from November 2006)
Tiptronic switch (automatic gearbox 09G)
(applicable from November 2007) | |
| 18 | - | SB18 - Fuse 18 on fuse holder B | 10 A | - | Dash panel insert, air conditioning, range control adjuster, navigation system, operating unit in steering wheel
| |
| 19 | - | SB19 - Fuse 19 on fuse holder B | 10 A | - | Reversing lights, heated jets | |
| 20 | - | SB20 - Fuse 20 on fuse holder B | 10 A | - | Washer pump | |
| 21 | - | SB21 - Fuse 21 on fuse holder B | 10 A | - | Right main beam | |
| 22 | - | SB22 - Fuse 22 on fuse holder B | 10 A | - | Left main beam | |
| 23 | - | SB23 - Fuse 23 on fuse holder B | 5 A | - | Number plate light, side light warning lamp, dimmer | |
| 24 | - | SB24 - Fuse 24 on fuse holder B | 10 A | - | Rear window wiper | |
| 25 | - | SB25 - Fuse 25 on fuse holder B | 10 A | - | Injectors (petrol) | |
| 26 | - | SB26 - Fuse 26 on fuse holder B | 10 A | - | Brake light switch/steering angle sender | |
| 27 | - | SB27 - Fuse 27 on fuse holder B | 5 A | - | Dash panel insert/ diagnosis | |
| 28 | - | SB28 - Fuse 28 on fuse holder B | 10 A | - | Onboard power supply control unit (XP2/4): Glove compartment light, luggage compartment light, interior light, sun blind
| |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 29 | - | SB29 - Fuse 29 on fuse holder B | 5 A | - | Climatronic, automatic air conditioning system, manual air conditioning system:
Coupling with heater element | |
| 30 | - | SB30 - Fuse 30 on fuse holder B | 5 A | - | Onboard power supply control unit (XP2/1): Voltage supply, onboard supply control unit, rain sensor, shift lock | |
| 31 | - | SB31 - Fuse 31 on fuse holder B | 25 A | - | Window regulator front left | |
| 32 | - | SB32 - Fuse 32 on fuse holder B | -
15 A | - | Vacant (applicable up to April 2006)
Cigarette lighter (applicable from May 2006) | |
| 33 | - | SB33 - Fuse 33 on fuse holder B | 15 A | - | Inteligent alarm, central locking, (voltage supply alarm horn), ultrasonic sensor
| |
| 34 | - | SB34 - Fuse 34 on fuse holder B | 15 A | - | Current supply relay, ignition transformer | |
| 35 | - | SB35 - Fuse 35 on fuse holder B | 20 A | - | Sunroof | |
| 36 | - | SB36 - Fuse 36 on fuse holder B | 25 A | - | Radiator fan motor | |
| 37 | - | SB37 - Fuse 37 on fuse holder B | 20 A | - | Headlight washer system pump | |
| 38 | - | SB38 - Fuse 38 on fuse holder B | 15 A | - | Fog light and rear fog light | |
| 39 | - | SB39 - Fuse 39 on fuse holder B | 15 A | - | Operating unit motor | |
| 40 | - | SB40 - Fuse 40 on fuse holder B | 30 A | - | Operating unit motor
Fuel pump SDI (applicable up to April 2005) | |
| 41 | - | SB41 - Fuse 41 on fuse holder B | 15 A | - | Petrol/TDI flow period meter | |
| 42 | - | SB42 - Fuse 42 on fuse holder B | 15 A | - | Ignition transformer | |
| 43 | - | SB43 - Fuse 43 on fuse holder B | 15 A | - | Right dipped beam | |
| 44 | - | SB44 - Fuse 44 on fuse holder B | 25 A | - | Window regulator rear left | |
| 45 | - | SB45 - Fuse 45 on fuse holder B | 25 A | - | Window regulator front right | |
| No. | | Current Flow Diagram designation | Nominal value | | Function/component | Terminal |
| 46 | - | SB46 - Fuse 46 on fuse holder B | 20 A | - | Onboard power supply control unit (XP4/3): Windscreen wiper | |
| 47 | - | SB47 - Fuse 47 on fuse holder B | 20 A | - | Onboard power supply control unit (XP5/5): Heated rear window | |
| 48 | - | SB48 - Fuse 48 on fuse holder B | 15 A | - | Onboard supply control unit (XS6/15): Turn signals | |
| 49 | - | SB49 - Fuse 49 on fuse holder B | 15 A
- | - | Cigarette lighter (applicable up to April 2006)
vacant (applicable from May 2006) | |
| 50 | - | SB50 - Fuse 50 on fuse holder B | 15 A | - | Central locking lock unit | |
| 51 | - | SB51 - Fuse 51 on fuse holder B | 20 A | - | Radio, CD, navigation system, telephone | |
| 52 | - | SB52 - Fuse 52 on fuse holder B | 20 A | - | Onboard power supply control unit (XP5/3): Horn | |
| 53 | - | SB53 - Fuse 53 on fuse holder B | 15 A | - | Left dipped beam | |
| 54 | - | SB54 - Fuse 54 on fuse holder B | 25 A | - | Rear right window regulator | |
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