Engine oil capacity
7.8 L
- Fill quantity listed for this engine
Porsche Boxster S 3.4 987Convertible · 3.4 litre · 217 kW
Jul 2006 – Dec 2009 · Convertible · Petrol · 3,387 cc
Engine, fluids, brakes, wheels and tyres, bulbs, battery and wipers for this car.
Other Boxster S 3.4 versions
Oil & fluids
Engine oil approval
Porsche A40
- Use an oil that carries this approval
Coolant capacity
22.3 L
Brake fluid
DOT 4
Gearbox oils
| Gearbox | Type | Fluid | Quantity |
|---|---|---|---|
| A87 | — | Automatic transmission fluid | 3.5 L |
| G87 | — | Gear oil | 2.8 L |
The gearbox figure is the quantity listed for the gearbox. A fluid change usually takes less, so fill to the correct level rather than to the figure. More than one gearbox is listed for this car, so check which one yours has before buying oil.
Quantities and approvals as listed for this vehicle. Check the level after filling; a capacity is not a top-up amount.
Engine & drivetrain
Engine code
M 97.21
- 3,387 cc · 6 cylinders · 24 valves
- Naturally aspirated · intake manifold injection/ carburettor
- Bore × stroke 96 × 78 mm
- Compression 11:1
Drive
Rear-wheel drive
Brake discs
| Axle | Disc size | Type | Minimum thickness | Applies to |
|---|---|---|---|---|
| Front | 318 × 28 mm | Vented | 26 mm | All versions |
| Rear | 299 × 24 mm | Vented | 22 mm | All versions |
Size is diameter × thickness. Replace a disc before it wears to its minimum thickness, which is also marked on the disc itself. Where two sizes are listed for one axle, the car's equipment decides which it has: measure the disc to be sure.
Wheels & tyres
Stud pattern
5 × 130
- Number of bolts × circle diameter (mm)
Wheel bolts
M14 × 1.5
- 19 mm hex head
Factory wheel and tyre sizes
| Wheel | Tyre size | Rim | Fitted to |
|---|---|---|---|
| 18-inch | 235/40 R18Mercedes-approved (MO) tyres listed | 8.0J × 18, offset ET57 | Front |
| 18-inch | 255/40 R18 | 9.0J × 18, offset ET43 | Rear |
| 18-inch | 265/40 R18 | 9.0J × 18, offset ET43 | Rear |
| 19-inch | 235/35 R19Mercedes-approved (MO) tyres listed | 8.5J × 19, offset ET55 | Front |
| 19-inch | 235/35 R19Mercedes-approved (MO) tyres listed | 8.0J × 19, offset ET57 | Front |
| 19-inch | 265/35 R19Mercedes-approved (MO) tyres listed | 10.0J × 19, offset ET42 | Rear |
| 19-inch | 265/35 R19Mercedes-approved (MO) tyres listed | 9.5J × 19, offset ET46 | Rear |
Sizes the parts catalogue lists for this car. A "Rear" row is the wider rear tyre on cars with different sizes front and rear. Your tyre placard, on the driver's door pillar, gives the sizes and pressures for the wheels your car was built with.
Bulbs
| Light | Bulb | Applies to |
|---|---|---|
| Headlight (low beam) | H7 · 55 W | Halogen |
| Headlight (low beam) | D2S xenon · 35 W | Xenon |
| High beam | H7 · 55 W | Xenon |
| High beam | H9 · 65 W | Halogen |
| High beam | H11 · 55 W | With Xenon light |
| Front fog light | H8 · 35 W | — |
| Indicator, front | P21W · 21 W | — |
| Indicator, rear | PY21W · 21 W | — |
| Daytime running light | H7 · 55 W | — |
| Parking / position light | W5W · 5 W | — |
| Brake / tail light | P21/5W · 21 W | — |
| Brake light | P21/5W | — |
| Reverse light | P21W · 21 W | — |
| Rear fog light | P21/4W | — |
| Rear fog / tail light | P21/4W · 21 W | — |
| Number plate light | C5W · 5 W | — |
| Interior light | W5W · 5 W | — |
Check the bulb you take out before buying a new one. Halogen, xenon and LED headlights use different bulbs, and LED lights usually have no bulb to replace.
Battery
| Case size (L × W × H) | Capacity | Cold cranking | Share of listings |
|---|---|---|---|
| 315 × 175 × 175 mm | 80 Ah | 730 A (EN) | 34% |
| 278 × 175 × 190 mm | 70 Ah | 760 A (EN) | 20% |
| 315 × 175 × 190 mm | 80 Ah | 800 A (EN) | 16% |
The main battery sizes listed for this car, most common first. The right one depends on the car's equipment, such as start-stop, so match the size, capacity and type printed on the battery you are replacing.
Spark plugs
Number
6
Thread
M14 × 1.25
Tightening torque
28 Nm
Engine, gearbox, brake, wheel, tyre, bulb, battery and plug details are taken from the parts makers' listings for this exact vehicle. Where those listings disagree, only the clear majority is shown.