PORSCHE Boxster S Engine thermostat replacement Cost
2002–2005 · Engine, Fuel & Emissions system
Typical range
$214–$397
Parts + labour
Labour hours
0.7–3h
At a typical garage
The thermostat regulates engine temperature by controlling coolant flow to the radiator. A stuck-closed thermostat causes overheating; a stuck-open one keeps the engine running cold, increasing wear and reducing heater output. PORSCHE Boxster S thermostat replacement costs $214–$397.
What affects the price
- OEM vs aftermarket thermostat (OEM strongly recommended for reliability)
- Whether the housing and gasket are replaced too
- Coolant top-up cost after the job
Common questions
How long does this repair take?
Engine thermostat replacement on a PORSCHE Boxster S typically takes 0.7–3 hours at a garage.
How often does this need to be done?
For a PORSCHE Boxster S, this is typically needed thermostats are replaced on failure; typical lifespan is 80,000–100,000 miles.
Other engine, fuel & emissions system repairs on the PORSCHE Boxster S
- ABS hydraulic unit replacement$491–$912
- ABS sensor replacement$202–$375
- ABS system bleeding$162–$300
- AC compressor clutch replacement$404–$751
- AC compressor replacement$433–$804
Engine thermostat replacement cost on similar cars
- MERCEDES BENZ E-Klasse Cabriolet and predecessors$194–$361
- BMW Z4 Roadster$194–$361
- SAAB 9-3 Convertible$194–$361
- AUDI A4 Cabriolet$194–$361
- CHEVROLET Camaro Convertible$233–$433
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