BMW 540i Catalytic Converter Replacement Cost.

The average cost for a Catalytic Converter Replacement is between $1641 and $3798. Labor costs are estimated between $237 and $300 while parts are priced between $1404 and $3498. Estimate does not include taxes and fees.
Get a Repair Cost
Nationwide Warranty • RepairPal Certified Mechanic
Show Repair List
Show Repair List

Learn More About Catalytic Converter Replacement Cost

Best Practices

Catalytic converters are vehicle-specific parts. We recommend using a high quality new part, which is required by emissions control programs in many states.

Common Symptoms

A failing catalytic converter can cause a BMW 540i to fail emissions tests and the Check Engine Light to illuminate. The exhaust might have an unusual smell.

A "restricted" catalytic converter can result in a loss of engine power.

Common Misdiagnoses

It is very important to have the shop identify why the catalytic converter failed. Failure is almost always due to another problem, which if not resolved, will quickly ruin a new catalytic converter.

Most Common BMW 540i Repairs

Parts
Labor
Average
Parts
Labor
Average
268 people used RepairPal for a BMW 540i estimate this week!