322
Practical Tips, Minor Repairs
Electrical SystemIn order to avoid damage and faults in electrical or
electronic systems, electrical accessories should
be installed at your authorized Porsche dealer.
fUse only accessories authorized by Porsche.
Warning!
Risk of short circuit and fire.
Replacing fuses or relays with engine running
or the ignition on could cause electrical
shock.
fDisconnect the battery during all work on the electrical system.
RelaysRelays should be checked or changed only by an
authorized workshop.Alarm system, central lockingThe status of the central locking and alarm system
is not changed by disconnecting the battery.
When the battery is disconnected, the alarm
system ceases to function.
SocketsElectrical accessories can be connected to the
12 V sockets.Note on operation
The sockets and thus the connected electrical ac-
cessories function even if the ignition is swi tched
off or the ignition key is withdrawn.
If the engine is not running and the accessories
are switched on, the vehicle battery will be
discharged.
Practical Tips, Minor Repairs
323
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.
f f f
324
Practical Tips, Minor Repairs Opening fuse-box lid in the dashboard
1. Carefully pry off the plastic cover with a screw-
driver (arrow) and remove.
The fuse plan is located on the inside of the
cover.
A- Fuse puller2. Remove the fuses carefully with the fuse puller.
Practical Tips, Minor Repairs
331
Fuse assignment – fuse box in engine compartmentNote
Use the plastic grippers from the fuse boxes in the dashboard to replace the fuses. No. Designation Rating in A
1
Fan
60
2Fan30
3
Secondary air pump
40
4 Secondary air pump 40
567
Fuel injectors, ignition coils
20
8 Fuel injectors, ignition coils20
9
Engine control module, camshaft adjusters, intake pipe switchover (Cayenne)
30
10Engine components: cooling air fan, carbon canister shut-off valve, pressure sensor for air conditioning, tank leakage detection,
run-on pump (Cayenne S), carbon canister shut-off valve valve (Cayenne)10
11
Engine existing wiring, secondary air pump (Cayenne), air-conditioning compressor (Cayenne), oil-level sensor (Cayenne)
15
12 Secondary air pumps, run-on pumps5
13
Fuel pump, right
15
14 Fuel pump, left15
15
Engine control module, main relay
10
16 Vakuum pump30
17
Oxygen sensors ahead of catalytic converter
15
18 Oxygen sensors behind catalytic converter7.5
Index
381
Evaporation control ............................. 270
Level gauges ........................................ 86
Recommendations .............................. 269
Fuel containers, portable ........................ 6
, 270
Fuel gauge ................................................... 86
Fuel quality ..................................................... 8
Function keys ............................................... 64
Lighting ................................................ 65
Fuse assignment......................................... 325
Fuses......................................................... 323
GGarage door opener.................................... 178
Allocating ........................................... 179
Changeable code system .................... 179
Deleting ............................................. 180
Fixed code system .............................. 179
Gear display ............................................... 215
Glasses case .............................................. 188
Glove compartment .................................... 189
Gross weight .............................................. 207
Ground clearance .............................. 374
, 375
HHand-held transmitter ......................... 178
, 179
Headlight beam adjustment ................ 123, 132
Headlights ................................ 210
, 279
, 349
Bi-Xenon ............................................. 351
Changing for left-hand traffic ................ 359
Closing the housing lid ........................ 351
Height adjustment ............................... 359
Opening the housing lid ....................... 351
Setting ............................................... 358Washer system ...................................136
Headrest ......................................................40
Installing ...............................................40
Removing .............................................40
Setting .................................................40
Heated rear window .........141
, 142
, 143
, 147
Height adjustment ..............................227, 244
High beam.........................................130, 133
Indicator light .................................80, 82
Switch ................................................133
High Range...............99
, 216
, 218
, 223
, 226
On-road driving program ......................222
High-pressure cleaning units.........................274
Horn ............................................................62
IIdentification number ...................................364
Idling..........................................................215
Ignition lock ..................................................70
Immobilizer...................................................21
Inclination sensor ..............24
, 26, 28, 34, 35
Function indication................................32
Monitored areas ....................................28
Switching off.........................................29
Switching on .........................................29
Switching on, temporarily.......................30
Instrument panel
Lighting ..............................................132
Interior light, front .......................................160
Interior lighting............................................160
Interior mirror ...............................................66
ISOFIX system...............................................60
JJack ................................................. 246
, 299
Jacking point ............................................. 307
Jump lead starting
Leads ................................................ 344
Jumper cables ........................................... 343
KKeys............................................................ 17
Changing the battery .......................... 346
Kickdown................................................... 217LLeather care .............................................. 280
Left-hand traffic.......................................... 359
Level control
..................... 98
, 174
, 191
, 227
, 244
, 301
Loading level.................... 245
, 246
, 375
Low level ........................................... 244
Normal level....................................... 244
Special low level................................. 244
Special terrain level ............................ 244
Switching on and off ........................... 246
Warning light ...................................... 246
License plate light............................. 162, 357
Lid
Engine compartment .......................... 199
Luggage compartment ....................... 194
Seal .................................................. 279
Lifting
Garage lift.......................................... 300
Jack .................................................. 307