2005 PORSCHE BOXSTER engine

236
Practical Tips, Emergency Service
Jump lead startingfPlease observe the chapter “EMERGENCY
UNLOCKING OF THE FRONT LUGGAGE
COMPARTMENT LID” on Page 228.
fPlease observe the chapter “BATTERY” on
Page 229.
If the battery is flat, the battery of another vehicle
can be used to start the car with the aid of jump
leads.
Both batteries must be 12 volt types. The
capacity (Ampere hours, Ah) of the donor battery
must not be substantially less than that of the
discharged battery.
The discharged battery must be correctly
connected to the vehicle’s electrical system.
Warning!
Risk of damage and injury due to short
circuit.
fUse only standard jump leads with sufficient
cross section and completely insulated
clamps.
Follow the jump lead manufacturer’s instruc-
tions.
fRoute the jump leads so that they cannot be
caught by moving parts in the engine compart-
ment.
The vehicles must not be in contact, otherwise
current might flow as soon as the positive
terminals are connected.
fCarefully ensure that conductive jewellery
(rings, chains, watch straps) do not come into
contact with live parts of the vehicle.
Danger of caustic burns.
fDo not lean over the battery.
Danger of gas explosion.
fKeep sources of ignition, e.g. naked flame,
burning cigarettes or sparks due to cable
contact, away from the battery.
fBefore connecting jump leads, it is essential to thaw out a frozen battery.
Connecting jump leadsAlways observe the sequence below:
1. Connect the red positive lead to the positive
terminal of the discharged battery first, then
connect it to the positive terminal of the donor
battery.
2. First connect the black negative cable to the
negative terminal of the donor battery, then
connect it to a suitable grounding point on the
vehicle with the discharged battery.
This grounding point must lie as far as possible
from the battery.
For example, a solid metal part or the engine
block are suitable grounding points.
If no suitable grounding points are to be found
on either vehicle, the negative cable must
carefully be connected directly to the negative
terminal of the battery.
If a suitable grounding point is to be found only
on the donor vehicle, the negative cable must
first be connected to the terminal of the
discharged battery, then to the grounding point
of the donor vehicle.

Practical Tips, Emergency Service
237
3. Run the engine of the donor car at a higher
speed.
4. Start the engine.
An attempted start using jump leads should
not last more than 15 seconds. Then allow a
waiting period of at least one minute.
5.Note
Before disconnecting the jump leads, electrical
loads such as the heated rear window and the
heating fan blower should be switched on (the
vehicle’s lights must not be switched on). This
reduces voltage peaks which may occur when
disconnecting the jump leads.
With the engine running, remove both jump
leads in reverse order.

258
Vehicle Identification, Technical Data
Vehicle IdentificationWhen ordering spare parts or making inqui-
ries, please always quote the vehicle identifi-
cation number. Vehicle identification label Vehicle identification label is attached to the inner
side of the front luggage compartment hood be-
low the hood lock. It contains all important data
about your car.
This label contains the following information:
1. Vehicle Identification No.
2. Type/Type description
3. Engine code/Transmission code
4. Paint No./Interior
5. Optional equipment
A duplicate of this label is in your Maintenance
Booklet.
Note
This data bank cannot be re-ordered if it is lost or
damaged.
Vehicle identification number In accordance with Federal Safety Regulations,
the vehicle identification number of your car is lo-
cated at the bottom left of the windshield frame
and can be seen from the outside.
The vehicle identification number is in the front lug-
gage compartment under the battery cover and at
the bottom left behind the windshield.
fPlease observe the chapter “BATTERY” on
Page 229.
Safety compliance sticker The safety compliance sticker is your assurance
that your new Porsche complies with all applicable
Federal Motor Vehicle Safety Standards which
were in effect at the time the vehicle was manuf-
actured.
The sticker also shows the month and year of pro-
duction and the vehicle identification number of
your car (perforations) as well as the Gross Vehic-
le Weight Rating and the Gross Axle Weight Ra-
ting.

Vehicle Identification, Technical Data
259
Tire pressure plateThe tire pressure plate is attached to the left-hand
door aperture.Paint dataThe paint data can be found on the tire pressure
plate.
Engine number The engine number is stamped on the underside
of the crankcase.

260
Vehicle Identification, Technical Data
Technical DataEngine data
Boxster Boxster S
Ty p e M 9 6 / 2 5 M 9 6 / 2 6
Horizontally opposed engine, liquid cooledHorizontally opposed engine, liquid cooled
Number of cylinders 6 6
Bore 3.37 in./85.5 mm 3.66 in./93 mm
Stroke 3.07 in./78 mm 3.07 in./78 mm
Cubic capacity 163.96 cu. in./2687 cm
3 193.98 cu. in./3179 cm
3
Compression ratio 11.0 : 1 11.0 : 1
Net-horsepower, SAE J 1349 240 hp/176 kW 280 hp/206 kW
at crankshaft speed 6400 rpm 6200 rpm
Net torque, SAE J 1349 199 ft. lb./270 Nm 236 ft. lb./320 Nm
at crankshaft speed 4700 - 6000 rpm 4700 - 6000rpm
Alternator 2100 W 2100 W
Firing order 1 - 6 - 2 - 4 - 3 - 5 1 - 6 - 2 - 4 - 3 - 5
Engine control Stationary high-voltage distribution, sequential injection,
cylinder-selective knock-control, stereo oxygen sensor closed-loop control, diagnostic system,
4 overhead camshafts, Porsche VarioCam, hydraulic valve clearance compensation

266
Vehicle Identification, Technical Data
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.
EngineOil change quantity without oil filter approx. 1.98 U.S.gallons/7.5liters
Oil change quantity with oil filter approx. 2.05 U.S.gallons/7.75 liters
Please observe the chapter “ENGINE OIL RECOMMENDATION” on Page 174.
Coolant Boxster
Manual transmission: approx. 5.86 U.S. gallons/22.2 liters
Tiptronic S: approx. 6.37 U.S. gallons/24.1 liters
Boxster S
Manual transmission: approx. 5.94 U.S. gallons/22.5 liters
Tiptronic S: approx. 6.42 U.S. gallons/24.3 liters
Manual transmission and differential 5-speed: approx. 2.4 quarts/2.25 liters, 6-speed: approx. 3 quarts/2.8 liters
Tiptronic Sapprox. 2.51 U.S. gallons/9.5 liters
Differential with Tiptronic Sapprox. 0.21 U.S. gallons/0.8 liters
Power steeringapprox. 1.1 quarts/1 liter hydraulic fluid Pentosin CHF 11 S
®
Brake fluidapprox. 0.4 quarts/0.39 liters; use only Original Porsche brake fluid
Windshield washerapprox. 0.66 U.S. gallons/2.5 liters without headlight washer
approx. 1.59 U.S. gallons/6 liters with headlight washer
Fuel tankRefill volume approx. 16.9 U.S. gallons/64 liters, including approx. 2.6 U.S.gallons/10 liters reserve.
Fuel qualityYour 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 that 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 Oktane™ knock control” will adapt the ignition timing, if necessary.

268Diagrams Acceleration diagram
Values have been determined at DIN empty
weight and with a 50 % load without
additional equipment.
Transmission diagram
The transmission diagram is based on
standard values on the basis of a mean
effective scrub radius. Changes of the scrub
radius, the tire tolerance, wear and tear,
deviating country equipment and tire slip
have not been taken into account.
Boxster S: Engine diagram at full power

269
Boxster: Engine diagram at full power