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Practical Tips, Minor Repairs
335
Changing fusesIn order to prevent damage to the electrical
system due to short circuits and overloads, the in-
dividual circuits are protected by fuses.
One fuse box is in the engine compartment. Two
additional fuse boxes are located in the outer ends
of the dashboard.
1. Switch off the consumer with the defective
fuse. Before replacing a fuse, switch off all
electrical consumers and remove the ignition
key.
2. Open the fuse-box lid.
3. Remove the corresponding fuse from its slot to
check it using the plastic gripper.
A blown fuse can be identified by the melted
metal strip.
4. Replace only with fuses of the same rating.
Note
If a fuse blows repeatedly, please consult an au-
thorized Porsche dealer immediately, so that the
short circuit can be located and corrected.
Never try to “repair“ fuses: you may cause serious
damage to other parts of the electrical system.
Cover of engine-compartment fuse boxOpening fuse-box lid in engine compartment
1. Rotate the turn-locks 90° anti-clockwise with a
screwdriver and remove the cover.
Fuse box in engine compartment2. Rotate the turn-locks of the fuse-box lid
90° anti-clockwise with a screwdriver and re-
move the lid.
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Practical Tips, Minor Repairs
337
Fuse assignment – fuse box in left side of dashboard
No. Designation Rating in A1
Center console socket, cigarette lighter
20
2 Parking heater radio receiver5
3
Sockets in passenger footwell
20
4 Parking heater15
5
Sockets in luggage compartment
20
6
7
Diagnostic socket
5
8 Wiper motor for windscreen30
9
Washer fluid pump, vehicle electrical system control unit
15
10 Power window, rear left25
11
Central locking system
15
12 Interior light, vehicle electrical system control unit20
1314 Power window, front left2515
Tail light, right; central locking system, power windows, mirrors
15
16 Horn, vehicle electrical system control unit20
17
Turn signal, side light, left; vehicle electrical system control unit
10
18 Headlight washer system20
19
Fog lights, vehicle electrical system control unit
15
20
21
Cornering light, vehicle electrical system control unit
15
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338
Practical Tips, Minor Repairs 22 Rear differential lock, transfer box30
23
Rear differential lock, disengageable anti-roll bars
10
24 Tire pressure monitoring5
2526 Engine control unit (engine management, radiator fans), airbag, instrument panel 1027282930313233
Steering column
15
34 Passenger compartment monitoring, inclination sensor5
35
Low beam left, high beam left, vehicle electrical system control unit
15
36 Vehicle electrical system control unit10
373839
Heated rear window
5
40 Instrument panel, diagnosis5
41
Steering column lock, ignition lock, central locking system, Porsche Entry & Drive
15
42 Sliding/lifting roof or Panorama roof30
43
Subwoofer
30
44 Electrical seat adjustment, left; electrical steering column adjustment 30 No. Designation Rating in A
Page 339 of 420
Practical Tips, Minor Repairs
339
45
Electrical seat adjustment, left; seat heating, rear
30
46
47
Transfer box
10
48
49
Servotronic, disengageable anti-roll bars
5
50 Heating pipe ventilation10
51
Diagnosis, parking brake switch, Air conditioning
5
52 Rear wiper30
53
Vehicle electrical system control unit, central locking system, power windows, mirrors, light switch, steering column
5
54 Headlight beam adjustment10
5556 Fan, front air-conditioning system4057
Fan, rear air-conditioning system
40
RES 1 Spare fuse 1
RES 2
Spare fuse 2
No. Designation Rating in A
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340
Practical Tips, Minor Repairs
Fuse assignment – fuse box in right side of dashboard
No. Designation Rating in A1
Towing attachment
15
2 ParkAssist5
3
Towing attachment
15
4 Telephone/telematics control unit5
5
Towing attachment
15
6 Porsche Stability Management (PSM)30
7
Transfer box (center differential lock), telephone preparation
5
8 Additional high beam, vehicle electrical system control unit 20
9
CD changer, DVD navigation
5
10 TV tuner, satellite receiver5
11
Radio or Porsche Communication System (PCM)
10
12 Radio booster30
1314 Tail light, left; central locking system, power windows, mirrors 1515
Power window, rear right
25
16
17
Low beam, right; high beam, right; vehicle electrical system control unit
15
18 Heated rear window relay30
19
Brake booster, towing attachment
30/25
20
21
Hood open switch, spare wheel release
10
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Practical Tips, Minor Repairs
341
22 Electrical seat adjustment, front right; seat heating, front right and rear right 3023
Air conditioning
10
24 Electrical seat adjustment, front right; seat memory, front right 30
25
Air-conditioning system, rear
5
26
27
Level control
15
28
29
Transmission control unit
10
30 Rear lid power closing mechanism20
31
Central locking system, power windows, mirrors
15
32 Central locking, right doors10
3334 Power window, front right2535
Turn signal, side light, right; vehicle electrical system control unit
10
36 Roof module, telephone, compass5
3738 Porsche Stability Management1039
Diagnosis
40 Transfer box (center differential lock)1041
Towing attachment
10
42 Roof module5
43
Back up light
5
44 Heated washer nozzles, running gear, seat heating5 No. Designation Rating in A
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342
Practical Tips, Minor Repairs
454647
Telephone preparation
10
48 Level control10
49
Telephone, automatic anti-dazzle mirror
5
50
51
Transmission
20
52 Selector lever switch5
535455
Reversing camera
5
56 Porsche Stability Management (PSM)40
57
Transfer box (center differential lock)
40 No. Designation Rating in A
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Practical Tips, Minor Repairs
345
Winter operationDuring the winter months, battery capacity tends
to decrease as temperatures drop. Additionally,
more power is consumed while starting, and the
headlights, heater, rear window defogger, etc.,
are used more frequently.
Let your Porsche dealer test the battery's capaci-
ty before winter sets in.Vehicle storageIf the car stands for long periods in the garage or
workshop, the doors and lids should be closed.
fRemove the ignition key and, if necessary, dis-
connect the battery.
Notes on operation
fWhen the battery is disconnected, the alarm
system ceases to function.
If the vehicle was locked before the battery
was disconnected, the alarm will be triggered
when the battery is reconnected.
To deactivate the alarm system:
fLock the vehicle and unlock it again.Maintenance note
Even if you put your vehicle out of operation, the
battery still discharges.
The battery will discharge more quickly if your ve-
hicle is not driven on a daily basis over a distance
of several miles. The more often you drive your ve-
hicle, and the longer the distance driven on each
trip, the more opportunity the vehicle‘s charging
system will have to recharge the batteries.
fTo preserve its efficiency, charge the battery
about every 6 weeks.
fCheck the battery acid level and top off with
distilled water if necessary.
fStore a battery that has been removed in a
dark, cool place, but not subject to freezing.
Putting vehicle into operationAfter the battery is connected or charged, the
PSM warning light lights up on the instrument pan-
el and a message appears on the multi-purpose
display of the instrument panel to indicate a fault.
This fault can be remedied with a few simple
steps:
1. Start the engine.
To do this, turn the ignition key or the control
unit (on vehicles that have Porsche Entry &
Drive) to ignition lock position 2 twice.2. Perform a few steering movements and drive
a short distance in a straight line until the PSM
warning light goes out and the message is
erased from the memory of the multi-purpose
display of the instrument panel.
3. If the warnings does not go out, then:
Drive carefully to the nearest authorized
Porsche dealer.
Have the fault remedied by an authorized
Porsche dealer.
4. After the warnings disappear:
Stop the vehicle in a suitable place.
5. Perform adaptation of the power windows:
Please observe the chapter “STORING FINAL
POSITION OF THE DOOR WINDOWS” on
Page 35.
6. On vehicles with tire pressure monitoring:
Please observe the chapter “SYSTEM LEAR-
NING PHASE” on Page 104.
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