Catalytic Converter Replacement on a BMW 3 Series
This BMW 3 Series came to us with a faulty catalytic converter that was affecting exhaust efficiency and overall engine performance. A failing cat restricts exhaust flow, hurts fuel economy, triggers warning lights — and guarantees an MOT emissions failure. We installed a new high-quality unit and carried out full exhaust system checks at the customer's location.
The Problem
The catalytic converter cleans exhaust gases before they leave the car. When its internal structure degrades or clogs, the engine struggles to breathe: sluggish acceleration, higher fuel consumption, and fault codes. Replacement must include proper alignment and leak checks, or the new unit's sensors will keep flagging errors.
What We Completed
- ✓Removal of faulty catalytic converter
- ✓Installation of new high-quality catalytic converter
- ✓Exhaust system alignment and secure fitting
- ✓Exhaust leak inspection and checks
- ✓Fault codes cleared and system tested
- ✓Final road test
The Result
Exhaust system performance restored, engine efficiency improved, and the emissions system functioning correctly. If you have an emissions warning light or a sluggish engine, our car diagnostics service will identify the fault, and our mechanical repair service can complete the fix on site.