clutch PORSCHE BOXSTER 2009 2.G User Guide

Shifting Gears
173
Drive-Off AssistantThe Drive-Off Assistant assists the driver when
moving off on hills.
The vehicle must have sufficient road contact.
The Drive-Off Assistant is available on gradients as
from around 5%.
Danger!
Risk of accident.
Assistance by the Drive-Off Assistant is not
guaranteed when moving off on a slippery
surface (e.g. on icy or loose surfaces). In this
case, the vehicle could slip.
The limits dictated by the laws of physics
cannot be overcome, even with the Drive-Off
Assistant. The responsi bility for moving off
on upward slopes is still the driver’s, despite
the Drive-Off Assistant.
f Always adjust your driving style to the driving
conditions and vehicle load, use the brake
pedal if necessary.
Risk of accident.
If the Drive-Off Assistant is not functioning,
the driver cannot be assisted when moving
off on hills.
f Hold the vehicle with the brake pedal. Driving off with the Drive-Off Assistant
(vehicles with manual transmission)
1. Hold the vehicle secure
ly on the slope with the
brake pedal.
The engine must be running.
2. Fully depress the clutch pedal.
3. Engage a gear corresponding to the direction of travel up the slope (1st gear or reverse
gear).
4. Fully release the parking brake.
5. While keeping the clutch pedal depressed, release the brake pedal.
The vehicle is held on the slope for a short time
in order to allow driving off directly after the
brake is released.
6. Move off as usual.
Note on operation
The Drive-Off Assistant is not active:
– If the clutch is not depressed.
– If the vehicle is not stationary.
– If the engine is not running.
– On gradients of less than 5%.
– If the pressure on the brake pedal is too low. Driving off with the Drive-Off Assistant
(vehicles with PDK transmission)
1. Hold the vehicle securely on the slope with the
brake pedal.
The engine must be running.
2. Select a gear corresponding to the direction of travel up the slope (selector lever position
Dor R).
3. Fully release the parking brake.
4. Release the brake pedal. The vehicle is held on the slope for a short time
in order to allow driving off directly after the
brake is released.
5. Move off as usual.
Note on operation
The Drive-Off Assistant is not active:
– In the event of shift to neutral.
– If the vehicle is not stationary.
– If the engine is not running.
– On gradients of less than 5%.
– If the pressure on the brake pedal is too low.

202
Maintenance, Car Care
Brake Fluid LevelfPlease see the chapter “EXERCISE EXTREME
CAUTION WHEN WORKING ON YOUR VEHICLE”
on Page 196.
f Use only new (unused) Original Porsche
brake fluid.
Warning!
Brake fluid is hazardous to your health, and
may be fatal if swallowed.
Brake fluid also attacks paintwork.
f Keep brake fluid out of children’s reach.
f Take care while topping off brake fluid not to
soil the luggage compartment or items of lug-gage.
Checking the brake fluid levelThe reservoir for the hydraulic braking and clutch
systems is located in the luggage compartment.
1. Open and remove cover flap A.
2. Regularly check the brake-fluid level on the transparent expansion tank through the
window B.
The fluid level should always lie between the
minimum and maximum marks. A slight decrease in the fluid level due to wear and
automatic readjustment of
the disc brakes is
normal.
If, however, the fluid level falls markedly or below
the minimum mark, the br aking system may have
developed a leak.
f Have the brake system checked without delay
at an authorized Porsche dealer.

Technical Data
281
Capacities Use only fluids and fuels authorized by Porsche. Your authorized Porsche dealer will gladly advise you.
Your Porsche has been designed so that it is not necessary to mix any additives with oils or fuels.
Engine Oil change quantity with oil filter approx. 1.98 U.S.gallons/7.5 liters
Please see the chapter “ENGINE OIL RECOMMENDATION” on Page 200.
Coolant Boxster: approx. 6.05 - 6.18 U.S. gallons/22.9 - 23.4 liters
Boxster S : approx. 6.13 - 6.61 U.S. gallons/23.3 - 25 liters
Manual transmission and differential Boxster: approx. 0.79 U.S. gallons/3 liters
Boxster S: approx. 0.85 U.S. gallons/3.2 liters
Porsche Doppelkupplung
Gear set approx. 0.78 U.S. gallons/2.95 liters
Porsche Doppelkupplung
Clutch/Hydraulic fluid approx. 1.37 U.S. gallons/5.2 liters
Power steering approx. 1.1 quarts/1 liter hydraulic fluid Pentosin CHF 11 S
® or CHF 202 S
®
Brake fluidapprox. 0.4 quarts/0.39 liters; use
only Original Porsche brake fluid
Windshield washer approx. 0.66 U.S. gallons/2.5 liters without headlight washer
approx. 1.58 U.S. gallons/6 liters with headlight washer
Fuel tank Refill volume approx. 16.9 U.S. gallons/64 liters, including approx. 2.6 U.S.gallons/10 liters reserve.
Fuel quality Your engine is designed to provide optimum performance and fuel economy using unleaded premium fuel with
an octane rating of 98 RON (93 CLC or AKI).
Porsche therefore recommends the use of these fuels in your vehicle.
Porsche also recognizes that these fuels may not always be available. Be assured tha t your vehicle will operate
properly on unleaded premium fuels with octane numbers of at least 95 RON (90 CLC or AKI), since the engine’s
”Electronic Octane™ knock control“ will adapt the ignition timing, if necessary.

286
Index
CCabriolet .................................................... 182
Capacities, overview ... ................................ 281
Car care ........................ ............................ 213
Car telephone ............. .................................. 99
Car washes .................... ............................ 214
Carpet ....................................................... 219
Catalytic converters .... ................................ 209
Cautions ........................ .................... 196, 222
Central locking ........... ................................ 246
Emergency operation ...................... 19, 22
In cars with alarm system ...................... 21
In cars without alar m system ................. 19
Overload protection ............................ 246
Central vents .............. ................................ 112
Central warning light ................................... 128
Changing light-emitting diodes (LEDs) ........... 266
Changing wheels ........ ................................ 237
Check engine Warning light .......... ............................ 128
Check engine warning li ght .......................... 129
Opening the oil filler cap ...................... 200
Checking pressure ...... ................................ 238
Child restraint system s.................................. 50
Chime ............... ......................... ............ 78, 80
CHRONO Stopwatch.... ................................ 140
Cigarette lighter.......... .................................. 88
Circulating-air button ... ........................ 106, 110
Clock ............................................. .... 127, 160
Clutch ............... ............................. ...... 60, 172
Clutch pedal ............... .................................. 60
Combination filter ....... ................................ 211
Comfort seat .............. .................................. 33
Coming home mode.... ............................ 79, 80 Communication manage
ment ......................... 97
Compact disc Player ...................... ............................ 98
Storage .................... ............................ 90
Compartment monitoring ................ ............... 25
Convertible top ......... .................................. 182
Care ........................ .......................... 215
Coolant ........... ........................... 124, 197, 281
Checking ............................................ 197
Level .................................................. 1

97
Temperature gage .... .......................... 124
Topping off ........... .............................. 197
Warning light......... .............................. 124
Cooling system ............. ...................... 124, 197
Warning light......... .............................. 124
Cornering light .......... .................................... 78
Indicator light ........ .............................. 123
Crankcase ventilation .................................. 209
Cruise control ................................. 84, 85, 128
Cupholder ......................................... ........... 86
DData bank................................................... 274
Daytime driving lights .................................... 78
Changing bulbs ..... .............................. 266
On-board computer ............................. 160
Defrosting windows ....... ................ 31, 106, 110
Diagnostic socket ..... .................................... 11
Dimensions ....................................... ......... 282
Direction indicator lig ht, front ....................... 266
Door ............................ ................................ 18
Handles ................................................ 18
Locks....................... .................... 18, 215
Mirror....................... ............................ 30 Mirror heating ..........
.............................31
Mirrors .................... .............................29
Windows ......................... 18, 27, 182, 216
Drive-Off Assistant ....... ................................173
Driving
Hints .............. ........................................8
Winter ......................... .......................179
Driving off
Drive-Off Assistant .... ...........................173
Launch Control......... ...........................177
Driving performance .... ................................280
Drop-center rim........... ................................233
EElectrical system..... ....................................245
Emergency flasher swit ch ..............................77
Emergency operation . ...................................22
Central locking ......... .......................19, 22
Convertible top ........ ...........................185
Ignition key ......... ..................................74
Lids................ ......................... ...........248
Tank flap ................. ...........................205
Emergency service ..... ................................222
Emergency starting with jumper cables.255, 256
Emission control system ..............129, 208, 209
Engine Checking the oil leve l ...........................157
Diagram ...................... .......................283
Exhaust ................... ...............................5
Number ..............................................275
Oil consumption ....... .....................10, 199
Oil level ................... ...........................199
Oil level indicator ...................... ...........157
Oils ............................................199, 281