Fuse assignment in the dash panel
Fig. 152 Schematic representation of the fuse box for vehicles with left-hand steering/right-
hand steering
Certain electrical components are only standard on certain vehicle model versions
or only suppliable as optional equipment for certain models. No. Power consumer
1 S-contact
2 START - STOP
3 Instrument cluster, headlight range adjustment
4 ABS control unit
5 Petrol engine: Speed regulating system
6 Reversing light (manual gearbox)
7 Ignition
Engine control unit, automatic gearbox
8 Brake pedal switch, coolant fan
9 Operating controls for the heating, control unit for air conditioning sys-
tem, parking aid, control unit for cornering lights, coolant fan
10 The air conditioning system
11 Mirror adjustment
12 Control unit for trailer detection
13 Control unit for automatic gearbox
14 Motor for halogen projector headlights with cornering light function
15 Radio navigation system PDA
16 Electrohydraulic power steering No. Power consumer
17 START - STOP - radio
Daylight driving lights
18 Mirror heater
19 S-contact
20 Anti-theft alarm system
21 Reversing light, fog lights with the function “CORNER”
22 Operating controls for the heating, control unit for air conditioning sys-
tem, parking aid, mobile phone, instrument cluster, steering angle
sender, ESP, vehicle voltage control unit, multifunction steering wheel
23 Interior lighting, storage compartment and luggage compartment, side
lights
24 Central control unit of the vehicle
25 Seat heaters
26 Rear window wiper
27 Telephone preinstallation
28 Petrol engine: AKF valve, petrol engine: Control flap
29 Injection, water pump
30 Fuel pump
Ignition
Cruise control system, operation of PTC relay
31 Lambda probe
32 High pressure pump, pressure valve
33 Engine control unit
34 Engine control unit
Vacuum pump
35 Power supply of ignition lock
36 Main beam
37 Rear fog light
38 Fog lights
39 Blower
40 Heatable windscreen washing nozzles, windscreen cleaning system
41 Not assigned
42 Rear window heater
£ 183
Fuses and light bulbs Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data
No. Power consumer
43 Horn
44 Front window wiper
45 Central control unit for convenience system
46 Engine control unit
Engine control unit
Fuel pump relay
Fuel pump control unit
47 Cigarette lighter, power socket in the luggage compartment
a)48 ABS, START-STOP - DC/DC converter ESP
49 Turn signal lights, brake lights
50 START-STOP - DC/DC converter infotainment
Radio
51 Electrical power window (front and rear) - left side
52 Electrical power window (front and rear) - right side
53 Parking light - left side
Electric sliding/tilting roof
54 START-STOP - instrument cluster
Anti-theft alarm system
55 Control unit for automatic gearbox DSG
56 Headlight cleaning system
Parking light - right side
57 Left low beam, headlight range adjustment
58 Low beam on the right
a)
If the engine is switched off already one electrical component which is connected can discharge the
battery. Replacing fuses at the battery (manual gearbox, automatic
gearbox DSG) Fig. 153 The battery: fuse cover
– Press together the interlocks of the fuse cover simultaneously in direction of
arrow A ⇒ fig. 153 and push out the cover in direction of arrow
B .
– Release the fixtures in the openings C using a flat screwdriver and fold the
cover upwards in direction of arrow D .
– Find out which fuse belongs to the component which is not operating.
– Defect fuses can be detected by their melted metal strips. Replace the defect
fuse by a new fuse of the same ampere number. WARNING
Read and observe the warning notes ⇒ page 153, Working in the engine com-
partment before working in the engine compartment. CAUTION
● Never attempt to “
repair” fuses and also do not replace them with a fuse of a
higher amperage - risk of fire! This may also cause damage at another part of the
electrical system.
● Have the electrical system checked as quickly as possible by a specialist ga-
rage if a newly inserted fuse blows again after a short time. Note
We recommend that you have these fuses replaced by a specialist garage. 184
Fuses and light bulbs
