Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
179 Reviews
Mobile mechanic in Telford, 11 years of experience
Our mobile mechanics save the hassle of driving your car to a garage. Book your mobile car service online and we'll come to your home or office.
ADAM • 19th February 2026
Vauxhall Insignia • Brake pads replacement - front (all)
5 Reviews
Mobile mechanic in Exmouth, 10 years of experience
Mobile servicing mechanic - Roadside assistance mostly, EV Qualified also - 10 years of experience.
CERI • 19th February 2026
Vauxhall Zafira • Car Won't Start Inspection
357 Reviews
Mobile mechanic in Wilton, 24 years of experience
Edward is the current European 'Auto Mechanik of the year' (Spelt the german way) having been awarded the huge honour and the title at the European awards ceremony in June 2025! Prior to this Edd held the t...
573 Reviews
Mobile mechanic in Leeds, 8 years of experience
IMI level 3 IMI level 2 MOT tester Over 10 years experience in the motor trade covering the Yorkshire area. Working hours Monday-friday: 9am-18.00pm Saturday/sunday: closed
ABBIE • 19th February 2026
Volvo XC40 • Full Service
135 Reviews
Garage in Abbots Road , 25 years of experience
Over 25 years experience in fixing cars,10 years of preparing rally cars. Studies: University and Master in auto vehicle engineering,all mechanical jobs done along my experience as clutches,timing belt,wet ...
CALVIN • 19th February 2026
Audi TT Coupe • Brake discs and pads replacement - front (both)
24 Reviews
Mobile mechanic in Pontefract , 10 years of experience
Thank you for choosing us . My name is Matt i am the founder of M.J.H autos . I have worked in garages for a lot of years now . And I have finally took the plunge and left the 9-5 . I guarantee every custom...
NEIL • 19th February 2026
49 Reviews
Garage in Manchester, 12 years of experience
I come from a family of engineers, my father is a mechanic and his father was an engineer, I have a passion for anything with an engine. I enjoy fixing vehicles and although I work on a mobile/from home basi...
1106 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...
85 Reviews
Garage in Bellshill, 12 years of experience
With over 12 year experience your car is in geed hands. I come to you, to take the stress of going to a a garage away. I am able to offer a wide range of services and repairs and im always happy to help.
IAIN • 19th February 2026
Peugeot 107 • Clutch replacement
8 Reviews
Garage in High Waycombe, 15 years of experience
Quick Auto is a reliable and efficient auto repair service providing both garage-based and mobile mechanic solutions. We specialize in fast, honest, and high-quality vehicle repairs, helping customers get ba...
MICHAEL • 19th February 2026
Mercedes-Benz GL-Class • Full Service
759 Reviews
Mobile mechanic in London, 9 years of experience
3 years at AVS where I started my mechanics as an apprentice, mastering general repairs and servicing on a wide range of vehicles , 2 years as a fast fitter in car giant. Perfecting replacing brakes, tyres ...
KERRI • 19th February 2026
BMW 1 Series • Brake pads replacement - front (all)
445 Reviews
Mobile mechanic in Romsey, 12 years of experience
I started my career in HM Armed forces joining the REME, where I served for 7 years. From there I worked for Mercedes-Benz for 4 years. And now I do all sorts, if it’s got wheels, I can fix it!
ERIN • 19th February 2026
Ford EcoSport • Additional work following previous booking
27 Reviews
Garage in St. Helens, 8 years of experience
8+ Years of Experience | Specialist in Diagnostics & Preventative Maintenance Dedicated and highly skilled self-employed mechanic with over 8 years of hands-on experience providing reliable and honest autom...
SCOTT • 19th February 2026
Peugeot 207 • Clutch replacement
224 Reviews
Mobile mechanic in Birmingham, 5 years of experience
I have 5 years experience in my country and about 3 years in UK
74 Reviews
Mobile mechanic in Bromley, 20 years of experience
Why waste your day waiting at a garage? Get expert-level service, maintenance and repairs, without leaving your home or office, from a brand you can trust. Book a 2-hour slot that fits your schedule, and a c...
ROMEL • 19th February 2026
Mazda CX-5 • 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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