Top Mechanics For BMW Catalytic Converter Replacement & Repairs
464 Reviews
Mobile mechanic in Tamworth, 15 years of experience
Ive been a mechanic for 15 years im hybrid trained and level 3 trained technician ive worked for a major leading company and decided to run my own business im also mot trained so have a good understanding of...
LEE • 20th August 2025
BMW 1 Series • Catalytic converter replacement
117 Reviews
Mobile mechanic in Newport, 20 years of experience
Light vehicles maintenance and repairs HGV experience Plant and forklift experience Capable of changing timing belts, diagnostic and most repairs
204 Reviews
Garage in Deeside, 20 years of experience
The majority of my experience has come from working for main dealers and learnt many skills through this route. I have worked for Saab, Ford, Citroen, Renault and most recently Vauxhall. I was there for 6 y...
117 Reviews
Garage in Harrogate, 17 years of experience
Deal with all car repairs and maintenance, based in Harrogate. Multiple years of experience.
PETER • 2nd January 2026
Land Rover Range Rover Evoque • Fuel filter replacement
8 Reviews
Mobile mechanic in London, 6 years of experience
Welcome to Nitrofix Garage! With over five years of hands-on experience in the repair and maintenance of German, French, and all other car brands, Nitrofix Garage specializes in complete vehicle care—from...
3 Reviews
Mobile mechanic in St Austell, 10 years of experience
Carry out vehicle servicing. Brake disc and pad replacements. Diagnostics. Steering & Suspension component replacements. Starter motor and Alternator replacements + a variety of other repairs carried out.
MATT • 1st January 2026
Vauxhall Crossland X • Brake pads replacement - rear (all)
37 Reviews
Garage in Luton, 5 years of experience
Mechanic – Universal Clutches, Luton Experienced in a wide range of vehicle repairs, including timing systems, turbos, brakes, and clutches. Flexible and reliable, willing to take on any job needed to keep ...
ROBERT • 1st January 2026
Chevrolet Spark • Starter motor replacement
228 Reviews
Garage in Cupar, 20 years of experience
Over 20 years experience in independent garages including bodyshop mechanic and also fiat and kia main dealer carrying out all types of repairs and mot testing
LAUREN • 1st January 2026
Renault Master • Premium Pre-purchase Inspection
581 Reviews
Garage in London, 15 years of experience
I have been interested in the car repair industry for almost my entire life. The first few years were spent learning the trade and I went to college to study it properly. I worked at a garage as a BMW specia...
PASTOR • 1st January 2026
Volvo V50 • Timing belt replacement
25 Reviews
Mobile mechanic in Cambridgeshire, 10 years of experience
Worked in main dealers such as a master tech for Mercedes for 4 years then moved onto Audi as a technician. Also been a roadside technician on cars / vans / commercials & HGV.
603 Reviews
Mobile mechanic in Kingston, 14 years of experience
Shahid is very passionate about mechanics and is keen to deliver the best service possible. He was brought into the mechanics world by his father, whom owed his own garage. After completing his qualificat...
ALESHA • 1st January 2026
Kia ceed • Car Won't Start Inspection
12 Reviews
Garage in Sunderland, 34 years of experience
Services include, Wet Belts, Timing belts, Clutches, Electric vehicle service and repair, Tyres, Brakes , Suspension, and Steering work. Class 4 and 7 Mot's. Servicing and repairs of all car vehicle makes...
DAVID • 1st January 2026
Citroen C4 • Full Service
315 Reviews
Mobile mechanic in Leyton, 15 years of experience
Have 15 years of experience as an mot inspector and can check if car is road legal and safe to drive
WINSTON • 1st January 2026
1083 Reviews
Garage in St Helens, 14 years of experience
Jonathan and his team at Northern Motors provides a reliable and professional mobile mechanic service that covers the whole of the North West area of England! With over 10 years of experience in the motor...
PAUL • 1st January 2026
Ford Mondeo • Diagnostic Inspection
20 Reviews
Mobile mechanic in Pontprennu, 16 years of experience
I've worked on cars since a very young age I grew up working in my grandads garage called lower Stoke garage were we worked on a vast variety of cars i then moved on from there to become a recovery mechanic ...
LISABETH • 1st January 2026
Land Rover Range Rover Evoque • Diagnostic Inspection
Frequently asked questions about BMW catalytic converter replacement & repairs
Read our answers to questions about catalytic converter replacement costs, symptoms and more.
What does a catalytic converter replacement on my BMW involve?
- Mechanic will read the ECU for catalytic converter and oxygen sensor related problems.
- Mechanic will inspect the catalytic converter for damage.
- Mechanic removes oxygen sensor for further check and removal of catalytic converter.
- If necessary, the catalytic converter will be replaced.
- Mechanic will advise if other parts need to be replaced.
- Mechanic will run engine, check catalytic converter operation.
- Mechanic will make adjustments where necessary.
What are the symptoms of a bad BMW catalytic converter?
You'll know something might be wrong with your car's catalytic converter:
- When dark smoke is coming from the exhaust
- When the engine performance is significantly reduced
- When fuel efficiency is decreasing
- When you experience issues while accelerating
- When the smell of sulfur (rotten eggs) is coming from your car
- When the check engine light flashes up
How long does it take to replace a catalytic converter on my BMW?
On average, catalytic converter replacement times can range from just over 1 hour to 1.7 hours with an average of around 1.2 hours. The time that the job takes will depend on a number of factors, like your vehicle's make and model, year, as well as other factors. Select your car at the top of this page for information on job time and cost for your vehicle through ClickMechanic.
How often should I replace the catalytic converter on my BMW?
Catalytic converters are built to have a long lifetime, however over time the pores can become clogged, or overheating can cause physical damage. A damaged catalytic converter will emit more toxic pollution into the atmosphere. It is important to ensure the catalytic converter is always serviced as and when stipulated in the guidelines set out by your car's manufacturer.
How to protect your BMW Catalytic Converter from theft
There are ways to prevent the theft of your catalytic converter, mainly by making it harder to access and remove it. Below are a few suggestions on how to deter thieves or at least slow them down:
- Parking closer to walls, other vehicles or close to the kerb, to make climbing under your car more difficult.
- Marking the catalytic converter with an engraved serial number can allow easier tracing as well making it harder to sell
- Welding the bolts if the converter is bolted on. This does not stop thieves but makes it harder to remove the converter using only a spanner. The downside to consider is that it not only makes it harder for thieves but also mechanics when they are working on your exhaust system.
- Get a protective cover fitted to make it more difficult for thieves to remove the converter
- Get a catalytic converter alarm which is set off when the catalytic converter is tampered with
- Increased security measures, e.g. if possible park in a lockable garage, fencing, park in well-lit areas or CCTV ?
What is the average lifespan of BMW catalytic converters?
Catalytics converters usually last 100,000 miles or even the entire lifetime of the vehicle, however this can differ depending on how and where you drive, and other internal and external factors.
Can local garages offer home collection and delivery for BMW catalytic converter replacement?
Yes, many local garages are able to offer collection and delivery for a catalytic converter replacement on your BMW. With ClickMechanic collection & delivery is free if your vehicle is drivable. Once booked a mechanic will pick up the vehicle on the day and time of your choice, do the work, and return the vehicle at a time convenient to you. Simply enter your vehicle registration number and postcode to get an upfront price for a catalytic converter replacement on your BMW.
Can mobile mechanics do BMW catalytic converter replacement at my home or office?
Yes, mobile mechanics can do a catalytic converter replacement at your home or office on your BMW, provided there is a safe and sufficient space to conduct the repair or replacement. With ClickMechanic, once booked for a date and time of your choice, your booking will be offered to vetted mobile mechanics in your area.
How much does a BMW catalytic converter replacement cost?
The cost for a BMW catalytic converter replacement depends on the model of your BMW. See the averages for different models below. We use industry standard data & millions of data points so you know what you should be paying.
These estimates may include Clamps and paste and Catalytic converter.
| Name | Average Cost | |
|---|---|---|
| BMW 1 Series | £443 | Get exact price |
| BMW 2 Series | £461 | Get exact price |
| BMW 3 Series | £480 | Get exact price |
| BMW 4 Series | £332 | Get exact price |
| BMW 5 Series | £398 | Get exact price |
| BMW 6 Series | £440 | Get exact price |
| BMW 7 Series | £419 | Get exact price |
| BMW 8 Series | £288 | Get exact price |
| BMW X1 | £218 | Get exact price |
| BMW X3 | £349 | Get exact price |
| BMW X5 | £267 | Get exact price |
| BMW X6 | £504 | Get exact price |
| BMW Z3 | £210 | Get exact price |
| BMW Z4 | £439 | Get exact price |
Average costs for 4 models not shown due to insufficient data. Show ∨
- BMW Z8
- BMW i3
- BMW i8
- BMW X4
Estimates on average repair costs, such as the above results for a catalytic converter replacement, are based on ClickMechanic's quote data which combines multiple third-party sources. Actual costs may vary. We provide estimates on average repair costs for information only and accept no liability for any inaccuracies or errors. If you think an estimate is incorrect, please contact us to let us know.
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Mechanics that work on BMWs
- 3lance Tickets LTD, Daventry
- Auto G, Portsmouth
- Auto Solutions East Ltd, Glasgow
- Autoservices, Hertfordshire
- B D Commercials, Southam
- Cheshire Vehicle Workshop, Northwich
- DB Autos, Arundel
- Fix My Car Today, Bushey
- GB Autocentre Ltd, Birmingham
- Leeds Auto Centre-Maidstone Ltd, Canterbury
- M H Automotive, Milton Keynes
- Marc’s Tyres & Autocare, Basildon