BMW 1 Series 3 doors Catalytic converter replacement Cost
2015–2017 · Engine, Fuel & Emissions system
Typical range
$382–$6.2k
Parts + labour
Labour hours
1–6h
At a typical garage
The catalytic converter reduces harmful exhaust gases by converting them to less toxic compounds. A failing cat triggers a P0420 check engine light, may produce a sulphur smell and can reduce engine power. BMW 1 Series 3 doors catalytic converter replacement costs $382–$6176—one of the more expensive emission-related repairs.
Typical parts included
- Catalytic converter
What affects the price
- OEM vs direct-fit aftermarket vs universal (OEM recommended for emissions compliance)
- Whether the vehicle has multiple catalytic converters (common on V6/V8)
- Whether upstream oxygen sensors need replacing at the same time
Common questions
How long does this repair take?
Catalytic converter replacement on a BMW 1 Series 3 doors typically takes 1–6 hours at a garage.
How often does this need to be done?
For a BMW 1 Series 3 doors, this is typically needed catalytic converters are replaced on failure; typical lifespan is 100,000–150,000 miles with good maintenance.
Other engine, fuel & emissions system repairs on the BMW 1 Series 3 doors
- 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
Catalytic converter replacement cost on similar cars
- OPEL Astra 5 Doors$280–$483
- VOLKSWAGEN Golf 5 Doors$280–$483
- MERCEDES BENZ A-Klasse$280–$483
- RENAULT Megane 5 Doors$280–$483
- FORD Focus 5 Doors$280–$483
Get the exact price for your BMW 1 Series 3 doors
Prices vary by year, engine and location. Tell us about your specific car.
Get my price estimate →