Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
38 Reviews
Mobile mechanic in St Helens, 15 years of experience
I have worked with numerous companies such as kwik fit national tyres and more local garages
PARITOSH • 11th January 2026
Mercedes-Benz E-Class • Bonnet lock clean and lubrication (bonnet wont shut)
143 Reviews
Garage in Rumney, 8 years of experience
Welcome to Red Garage Cardiff, where customer satisfaction is our driving force. We pride ourselves on providing exceptional service with a commitment to open communication and professionalism. At Red Gar...
SHELDON • 11th January 2026
156 Reviews
Garage in Northampton, 7 years of experience
As a dedicated mechanic, I take immense pride in my work, knowing that every repair and every adjustment I perform keeps vehicles running smoothly and safely. My hands are skilled, my mind is sharp, and my p...
8 Reviews
Mobile mechanic in Rochester, 9 years of experience
Miskins Mechanical Solutions provide a range of mobile automotive, plant and refrigerant handling services to suit your needs.
160 Reviews
Garage in Trowbridge , 7 years of experience
Hi, I started my journey in car and mechanics business 7 years ago and have been committed to learn all I can about cars and how they work to better my self and experience to customers. I have been working...
DOMINIC • 11th January 2026
Ford Fiesta • Clutch replacement
501 Reviews
Garage in Thornton Heath, 7 years of experience
Welcome to AUTO PRO, where automotive excellence meets customer satisfaction! With over 7 years of hands-on experience in the auto industry, we take pride in being your trusted partner for all things automot...
LITTIL • 11th January 2026
Mazda Mazda6 • Interim Service
10 Reviews
Garage in Harrow, 12 years of experience
With over a decade of hands-on experience diagnosing and repairing faults on a wide range of cars and vans, we’ve built a reputation for reliability, precision, and quality workmanship. Our expertise covers ...
SIMON • 11th January 2026
BMW 3 Series • Diagnostic Inspection
195 Reviews
Garage in Reading, 6 years of experience
I have worked as a mechanic in multiple garages however i started MK Servicing as a sole trader in 2022. I have since grown the business and the reputation by providing the best possible customer experience....
MIRRIAM • 11th January 2026
Vauxhall Corsa • Brake discs and pads replacement - front (both)
18 Reviews
Garage in Dalkeith, 35 years of experience
We are Balmoral Motor Company - a local independent garage based in Dalkeith which has been established since 2003. Garage with over 65 years combined experience. Service Sure, Eurorepar Member and part...
CALUM • 11th January 2026
41 Reviews
Garage in Aylesbury , 12 years of experience
Mobile mechanic specialist on diagnostic. Repair.parts replacement,maintenance of vehicle ,exhaust sistem gears box services,engine service
ASHLEY • 11th January 2026
Volkswagen Touran • Heater matrix replacement
13 Reviews
Garage in Shoreham, 18 years of experience
Welcome to our page, we offer a range of car repair and maintenance services to keep your vehicle running smoothly. ensuring it is safe and reliable on the road. From engine problems to electrical faults, ou...
MARIE • 11th January 2026
Land Rover Freelander 2 • Glow plugs replacement (all)
212 Reviews
Garage in Woodbridge , 26 years of experience
I started my career with a tyre business called Hemel First Choice Tyres in Hemel Hempstead for 5 years. I set up my own tyre business within Bury Road Garage in Hemel Hempstead for around a year. I moved to...
RICHARD • 11th January 2026
Ford Fiesta • Clutch replacement
74 Reviews
Mobile mechanic in Leeds, 20 years of experience
I am a fully qualified motor vehicle mechanic with over 20 years of hands-on experience in the automotive industry. I have extensive experience working as a mobile mechanic, carrying out repairs, servicing, ...
JEANETTE • 11th January 2026
Ford Transit • Brake discs and pads replacement - front (both)
77 Reviews
Garage in Panshanger, 27 years of experience
Worked for Rover as an apprentice for 12 month moved to a Ford main dealer for 27 years. Now mobile mechanic L.S Auto's.
18 Reviews
Mobile mechanic in Brentwood , 5 years of experience
Experienced and qualified Automotive Mechanic with over five years of hands-on experience working for local garage . Skilled in diagnosing, repairing, and maintaining a wide range of high-performance vehicle...
STEPH • 11th January 2026
Ford Fiesta • Diagnostic Inspection
Frequently asked questions about Mercedes-Benz 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 Mercedes-Benz 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 Mercedes-Benz 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 Mercedes-Benz?
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 Mercedes-Benz?
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 Mercedes-Benz 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 Mercedes-Benz 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 Mercedes-Benz catalytic converter replacement?
Yes, many local garages are able to offer collection and delivery for a catalytic converter replacement on your Mercedes-Benz. 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 Mercedes-Benz.
Can mobile mechanics do Mercedes-Benz catalytic converter replacement at my home or office?
Yes, mobile mechanics can do a catalytic converter replacement at your home or office on your Mercedes-Benz, 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 Mercedes-Benz catalytic converter replacement cost?
The cost for a Mercedes-Benz catalytic converter replacement depends on the model of your Mercedes-Benz. 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 | |
|---|---|---|
| Mercedes-Benz A-Class | £376 | Get exact price |
| Mercedes-Benz B-Class | £332 | Get exact price |
| Mercedes-Benz C-Class | £429 | Get exact price |
| Mercedes-Benz Citan | £186 | Get exact price |
| Mercedes-Benz CLC-Class | £644 | Get exact price |
| Mercedes-Benz CL-Class | £734 | Get exact price |
| Mercedes-Benz CL Coupe | £734 | Get exact price |
| Mercedes-Benz CLK | £450 | Get exact price |
| Mercedes-Benz CLS-Class | £553 | Get exact price |
| Mercedes-Benz E-Class | £632 | Get exact price |
| Mercedes-Benz GLA-Class | £127 | Get exact price |
| Mercedes-Benz M-Class | £446 | Get exact price |
| Mercedes-Benz SL-Class | £664 | Get exact price |
| Mercedes-Benz SL-Class R129 | £411 | Get exact price |
| Mercedes-Benz SLK | £259 | Get exact price |
| Mercedes-Benz Sprinter | £562 | Get exact price |
| Mercedes-Benz Vito | £495 | Get exact price |
Average costs for 17 models not shown due to insufficient data. Show ∨
- Mercedes-Benz CLA-Class
- Mercedes-Benz GLC-Class
- Mercedes-Benz GLE Class
- Mercedes-Benz SLR McLaren
- Mercedes-Benz G Wagen
- Mercedes-Benz Viano
- Mercedes-Benz GLK
- Mercedes-Benz S-Class
- Mercedes-Benz GL-Class
- Mercedes-Benz R-Class
- Mercedes-Benz S-Class Coupe
- Mercedes-Benz G-Class
- Mercedes-Benz SLS
- Mercedes-Benz 814
- Mercedes-Benz Vario
- Mercedes-Benz Vaneo
- Mercedes-Benz V-Class
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 Mercedes-Benzs
- ANU Import And Export Ltd Trading As ABBEY CARS AND MOT, Leicester
- AUTO GEM CARS, Birmingham
- Adam M, Bristol
- Agmmobilemechaincis, Doncaster
- Arvapro Vehicle Repairs, Shoreham
- Beeson Motorcycle Ltd, St Leonard’s On Sea
- Carriden Garage Ltd, Boness
- DENTECH MOTORCYCLE AND AUTOMOTIVE CENTRES LTD, Sheffield
- FTS Automotive, Deal
- Mad Max Mobile, Pontprennu
- Pit Stop Mobile Ltd, Basingstoke
- Primo Tyres Ltd, Redhill
Practical solution provided, rather than replacing, repaired.”