MERCURY Grand Marquis Thermostat replacement Cost
2002–2007 · Engine, Fuel & Emissions system
Typical range
$302–$2.0k
Parts + labour
Labour hours
1–4h
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. MERCURY Grand Marquis thermostat replacement costs $302–$2007.
Typical parts included
- Thermostat housing
- Thermostat
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?
Thermostat replacement on a MERCURY Grand Marquis typically takes 1–4 hours at a garage.
How often does this need to be done?
For a MERCURY Grand Marquis, 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 MERCURY Grand Marquis
- ABS hydraulic unit replacement$459–$842
- ABS sensor replacement$189–$347
- ABS system bleeding$151–$277
- AC compressor clutch replacement$378–$693
- AC compressor replacement$405–$743
Thermostat replacement cost on similar cars
- VOLKSWAGEN Passat$225–$413
- OPEL Insignia$225–$413
- AUDI A4 Avant$225–$413
- FORD Mondeo Hatchback$225–$413
- RENAULT Laguna$225–$413
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