PROTON Iriz Thermostat replacement Cost
2014–2017 · Engine, Fuel & Emissions system
Typical range
$215–$1.4k
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. PROTON Iriz thermostat replacement costs $215–$1380.
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 PROTON Iriz typically takes 1–4 hours at a garage.
How often does this need to be done?
For a PROTON Iriz, 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 PROTON Iriz
- ABS hydraulic unit replacement$340–$587
- ABS sensor replacement$140–$242
- ABS system bleeding$112–$193
- AC compressor clutch replacement$280–$483
- AC compressor replacement$300–$518
Thermostat replacement cost on similar cars
- NISSAN Micra 5 Doors$200–$345
- RENAULT Clio 5 Doors$200–$345
- KIA Picanto$200–$345
- MINI Hatch$200–$345
- FIAT 500$200–$345
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