
304
Minor Repairs
Battery carefEnsure that battery is securely mounted.
f Keep terminals and connections clean and
properly tightened. Corrosion can be
prevented by coating the terminals and
connections with petroleum jelly or silicone
spray.
f Ensure that vent caps ar e securely tightened to
prevent spillage.
Checking the electrolyte fluid level
(only on low-maintenance batteries)
Generally, the electrolyte level must be checked
more often in summer than in the winter, and more
often when driving long distances.
f When adding water, use only clean containers.
In no case may alcohol (e.g. window cleaner
residues) be permitted to enter the battery.
f Unscrew and open the filler vent caps of each
cell.
With the car on a level surface, the fluid level
should meet the indicator mark in each cell.
f If necessary, top up with distilled water. Do not
use acid. Only fill up to the mark, otherwise the
electrolyte will overflow when the battery is
being charged and cause damage.
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.
f Let your Porsche dealer test the battery's
capacity before winter sets in.Vehicle storageIf the car stands for long periods in the garage or
workshop, the doors and lids should be closed.
f Remove the ignition key and, if necessary,
disconnect the battery.
Notes on operation
f When 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:
f Lock the vehicle and unlock it again.
Alarm system, central locking
f The status of the central locking and alarm
system is not changed by disconnecting the
battery. Maintenance notes
Even if you put your vehicle out of operation, the
battery still discharges.
The battery will discharge more quickly if your
vehicle is not driven on a daily basis over a
distance of several miles. The more often you
drive your vehicle, and
the longer the distance
driven on each trip, the more opportunity the
vehicle‘s charging system w ill have to recharge the
batteries.
f To preserve its efficiency, charge the battery
about every 6 weeks.
f Check the battery acid level and top off with
distilled water if necessary.
f Store a battery that has been removed in a
dark, cool place, but not subject to freezing.

Index
335
Octane rating .................................................... 265
Portable fuel containers .......................................... 3
Quality ............... ...................................... ......... 265
Recommendation ............... ................................ 268
Recommendations ............. ................................ 268
Refuelling ........... ...................................... ......... 265
Tank capacity ................ .................................... 329
Fuel can ............... .......................................... ............. 267
Fuel containers, portable .. ................................................ 3
Fuel gauge ........... .......................................... ............. 111
Fuel level indicator Fuel gauge .................... .................................... 111
Fuel reserve ......... .......................................... ............. 266
Fuse, changing electric fu ses ....................................... 298
GGarage door opener
Deleting programmed sign als ............................. 244
Functional description ........................................ 243
Operating ................................................. ......... 245
Programming signal (chang eable code system) .... 244
Programming signal (fixed code system).............. 244
Gear selector Emergency unlocking ..... .................................... 200
Glove box Closing .............. ...................................... ......... 219
Cooling .............. ...................................... ........... 83
Opening ............. ...................................... ......... 219
Ground clearance ................ ............................................ 3HHandbrake (electric parking brake)
Operating ................................................. ......... 171
Releasing ........... ...................................... ......... 171
Head restraints ................... .......................................... 38
Headlight levelling (automatic) Functional description .......................................... 94
Headlights Adjusting ....................... .................................... 314
Care instructions ........... .................................... 274
Changing bulb for auxiliary high-beam headlight .... 311
Installing ....................... .................................... 309
Operating washer system ................................... 103 Removing ............
..............................................309
Heated rear window Switching on/off............... ....................................84
Heated seats ...... .............................................. .............43
Switching off.................... ....................................43
Switching on .................... ....................................43
Height adjustment Overview ............. ..............................................209
Warning message on the multi-function display .....210
High beam headlight Stalk ................... ................................................96
High-beam headlight........... ............................................96
Changing bulb (auxiliary high-beam headlight) .......311
Installing headlights ...... ......................................309
Removing headlights ........ ..................................309
High-pressure cleaning equipment Instructions for use ...... ......................................270
Hillholder (Drive-off Assistant) Functional description ... ......................................206
HOLD function Functional description ... ......................................206
Home mode Entry function .................. ....................................95
Welcome Home function ... ....................................95
HomeLink (garag e door opener)
Deleting programmed sign als..............................244
Functional description ... ......................................243
Operating ........................ ..................................245
Programming signal (chang eable code system)
....244
Programming signal (fixed code system) ..............244
Hot exhaust pipes .............. ..............................................3
IIdentification number, position ......................................323
Ignition lock Emergency operation of th e key ..........................166
Functional description ... ......................................164
Removing ignition key, PD K transmission .............195
Immobiliser Functional description ... ......................................250
Switching on/off............... ..................................250
Inclination sensor Function indication ....... ......................................249
Switching off with bu tton in door handle
(Porsche Entry & Drive). ......................................248 Switching off with car key
.................................. 247
Instrument cluster Adjusting lighting ............ ..................................... 95
Cooling system, temperat ure gauge ................... 110
Engine oil temperature ga uge ............................. 110
Fuel gauge ............................................ ............ 111
Odometer .......... ............................................... 112
Speedometer ..................... ............................... 110
Tachometer ....................... ............................... 110
Warning and indicator ligh ts, overview ................. 107
Instrument panel Adjusting lighting ............ ..................................... 95
Cooling system, temperat ure gauge ................... 110
Engine oil temperature ga uge ............................. 110
Fuel gauge ............................................ ............ 111
Odometer .......... ............................................... 112
Speedometer ..................... ............................... 110
Tachometer ....................... ............................... 110
Warning and indicator ligh ts, overview ................. 107
Interior mirror Switching automatic anti-daz zle function on/off ...... 60
Interior surveillance .......... ........................................... 249
Switching off with button in door handle
(Porsche Entry & Drive) ...................................... 248
Switching off with car key .................................. 247
iPod interface, installation position................................ 192
JJump-lead starting for flat battery ................................. 306
Jump-lead starting, external power supply ..................... 306KKey
Changing battery ............ ................................... 307
Emergency operation, igni tion lock ..................... 166
Locking vehicle door....... ..................................... 24
Removing emergency key .................................... 20
Replacement keys .......... ..................................... 19
Unlocking vehicle door .... ..................................... 23
Keys ....................... ..................................................... 19
Kickdown Porsche Doppelkupplung. ................................... 197