AUDI A3 Thermostat replacement Cost
2003–2005 · Engine, Fuel & Emissions system
Typical range
$286–$2.2k
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. AUDI A3 thermostat replacement costs $286–$2178.
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 AUDI A3 typically takes 1–4 hours at a garage.
How often does this need to be done?
For a AUDI A3, 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 AUDI A3
- ABS hydraulic unit replacement$425–$765
- ABS sensor replacement$175–$315
- ABS system bleeding$140–$252
- AC compressor clutch replacement$350–$630
- AC compressor replacement$375–$675
Thermostat replacement cost on similar cars
- VOLVO V60$250–$450
- MERCEDES BENZ C-Klasse SportCoupe/CLC$250–$450
- BMW 1 Series 3 doors$200–$345
- ALFA ROMEO 147 3 Doors$200–$345
- LANCIA Prisma$250–$450
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