
258 Minor Repairs
Wheels with Central Lock
Racing technology for the road. Wheels with a central lock are perfectly normal in motor sport, but are not common on normal roads.Instead of the central lock nuts conventionally used in motor sport, the wheel has an encapsulated central bolt, which is used to fasten it to the wheel hub.
Driving on a race circuit (e.g. sports driving school, club sport events)
Wheels are subjected to significantly higher stresses during extremely sporty driving – particularly when driving on race circuits – compared to driving on public roads. For this reason, all the instructions specified below must always be noted and followed for driving on race circuits.fAlways make enquiries with your authorized Porsche dealer about any other driving and maintenance instructions before driving on race circuits.
The central lock, like all chassis components, requires greater attention while driving on race circuits.fCheck the tightening torque of the central bolts before, if necessary during and after driving on a race circuit.fWhenever wheels are changed, apply some aluminum paste to the trapezoidal thread on the wheel hub or have a second set of greased screws on hand.fNever drive the vehicle without a central lock bolt in the hub.fAll central wheel lock components, such as the central bolt, wheel, wheel hub, wheel hex and brake disk must always be checked for wear and replaced if necessary after driving on a race circuit.
fAxis components subject to high loads must be replaced at intervals specified by Porsche . Always make enquiries with your authorized Porsche dealer about the current stipulations before driving on race circuits.fOther parts such as ball joints, rubber mounts, etc., where wear may result in modified vehicle handling, must be checked and if applicable replaced without delay.
Deferring inspection, maintenance and replacement measures can result in accidents.
This is particularly true if you are clocking up high mileage on race circuits . We recommend that you get an authorized Porsche dealer to carry out these measures.
Components can break or become damaged. Unsuitable wheel sizes or incorrectly dimensioned components in the hub area of accessory wheels , the use of spacers, etc. can impair the overall function of the wheel mounting.fOnly use wheel/tire combinations approved by Porsche.fUnder no circumstances should spacers be used.
Central Bolts
The central bolt and central bolt lock are safety-related components. Always check them for signs of wear and damage.fThe conical surface, trapezoidal thread and inner toothing of the central bolt must not be scratched or cracked.fReplace damaged central bolts.Only use the genuine Porsche central bolts allocated specifically to this vehicle model.fThe conical surface and trapezoidal thread on the central bolt must be perfectly clean.
Tightening torque for central bolts: 443 ftlb. (600 Nm).
Changing a Wheel
fGet an authorized Porsche dealer to change the wheel.
Information
The tools required for changing a wheel (e.g. jack, torque wrench) are not supplied as standard with the car. Your authorized Porsche dealer will be pleased to advise you.
Deferred inspection, maintenance and replacement measures
Inadequate screw connections when using unapproved components and wheels
WARNINGh
WARNINGh
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Index 291
Changing in car key ..........................................275 Charging..........................................................274Emergency starting with jumper cables ..............273General information ..........................................271Installation position ...........................................271Procedure after connection ...............................273Replacing ........................................................272Vehicle electrical system warning ........................95Winter driving...................................................272Before driving off .............................................................5BeltsCare instructions ..............................................237Fastening ..........................................................37Opening belt buckle ............................................38Safety-belt pretensioners, functional description ...37Warning light on the tachometer ..........................37 Brake booster .............................................................154Brake disks .....................................................................3Brake fluid ......................................................................3 Changing .........................................................243Warning light on speedometer ...........................243Brake pads .....................................................................3Breaking in new brake pads ..................................6Warning message, brakes.................................154Brake pedal ................................................................153Brake wear Warning message.............................................154 BrakesApplying/releasing parking brake.......................151Brake pad warning message .............................154Brake pedal .....................................................153Brake wear warning message ...........................154Break in new brake pads.......................................6Footbrake ........................................................152Test stand ...............................................221, 241Break in hints ..................................................................6Breaking inEngine .................................................................6Engine oil and fuel consumption during break-in period .....................................................6Hints ...................................................................6New brake pads and brake disks ...........................6New tires .............................................................6Brief overviewOpening and locking the vehicle from outside .......19
CCabrioletClosing convertible top .......................................69Convertible top care .........................................233Emergency operation .........................................70
Engine compartment lid ..................................... 26 Opening convertible top ..................................... 68Roll-over protection ............................................ 48Car careAirbags ........................................................... 237Alcantara ........................................................ 237Alloy wheels .................................................... 235Fabric linings ................................................... 237Headlights, plastic components, adhesive foils... 235Leather ........................................................... 236Leather care for seats with seat ventilation ........ 236Paint ............................................................... 234Safety belts ..................................................... 237Seals .............................................................. 236Underbody protection ...................................... 235Use of high-pressure cleaning equipment ........... 232Washing the vehicle, instructions....................... 232Wheel attachment faces ................................... 257Wheel bolts ..................................................... 257Windows ......................................................... 234Car key (remote control)Changing battery ............................................. 275Emergency operation of key/control unit in ignition lock....................................................... 28Locking vehicle door .......................................... 22Unlocking vehicle door ....................................... 21 Car Telephone............................................................. 169Care instructions Airbags ........................................................... 237Alcantara ........................................................ 237Alloy wheels .................................................... 235Car washing .................................................... 232Carpet ............................................................ 236Fabric linings ................................................... 237Headlights, plastic components, adhesive foils... 235Leather ........................................................... 236Leather care for seats with seat ventilation ........ 236Mats ............................................................... 236Paint ............................................................... 234Radar sensor................................................... 235Safety belts ..................................................... 237Seals .............................................................. 236Ultrasound sensors, ParkAssist......................... 235Underbody protection ...................................... 235Use of high-pressure cleaning equipment ........... 232Wheel attachment faces ................................... 257Wheel bolts ..................................................... 257Windows ......................................................... 234Carpet, care instructions ............................................. 236Catalytic converter ...................................................... 226Emission control (Check Engine) ......................... 95
Center armrest Opening front oddments tray .............................194Central bolt tightening torque (wheels) ...........................262Central locking ......................................................23, 258Emergency operation in the event of a fault ..........29Locking vehicle door with car key (remote control) .................................................22Locking vehicle door with Porsche Entry & Drive...22Opening and locking vehicle door from inside .......23Unlocking vehicle door with car key(remote control) .................................................21Unlocking vehicle door with Porsche Entry & Drive ........................................21 Central locking system Functional description .........................................18Changing button assignment on multi-function steering wheel..........................................................................127Changing car key (remote control) battery .....................275Changing wheels .........................................................254Chassis control systemsOverview (PTM, PSM, PASM, PDCC, PTV Plus) ....179Chassis number, position .............................................284Chassis setupFunctional description .......................................185Selecting .........................................................186Check Engine (emission control) Functional description .........................................95Warning light ......................................................95 Checking pressure .......................................................256Child restraint anchorages..............................................47Child restraint systemInstalling with LATCH system ...............................46LATCH restraint system ......................................46Child seatInstalling with LATCH system ...............................46LATCH restraint system ......................................46Prescribed installation direction (depending onweight of child)...................................................43 Child seat bracket .........................................................46Chrono .......................................................................114Cigarette Lighter .........................................................196Cleaning the air deflector ...............................................67Clock ..................................................................114, 124Closing Locking vehicle door from inside .........................23Persons/animals remaining in the vehicle .............22Vehicle door with car key (remote control) ............22Vehicle door with Porsche Entry & Drive (keyless) .22Closing convertible top ..................................................69Coasting .....................................................................150Coasting mode ................................................174
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