Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
426 Reviews
Garage in Hayes, 12 years of experience
Having being in the motortrade industry for over a decade, I have increased my knowledge dramatically by getting my level 3 in vehicle maintenance, then going onto university to study motorsport engineering ...
LOCHAN • 22nd January 2026
188 Reviews
Garage in London, 25 years of experience
I’m Carlos, founder of CMS Engineering Ltd. I started my mechanical career at a Peugeot main dealer, where I developed my skills for six years before moving to an independent garage for a year. I then joined...
JONATHAN • 22nd January 2026
208 Reviews
Mobile mechanic in Cambridge, 10 years of experience
With over 10 years of experience, I am a highly skilled mobile mechanic specialising in general maintenance and vehicle repairs
80 Reviews
Garage in Sunbury-On-Thames, 15 years of experience
10 Years Main Dealer mechanic MINI/BMW Audi Citroen Mitsubishi 1 year independent garage mechanic 4 years mobile mechanic and workshop mechanic
LEE • 22nd January 2026
SEAT Leon • Diagnostic Inspection
23 Reviews
Garage in Cradley Heath , 20 years of experience
We specialist in clutches and gearboxes, know the ins and outs of these jobs.
REBECCA • 22nd January 2026
Renault Grand Scenic • Clutch replacement
848 Reviews
Mobile mechanic in London, 16 years of experience
I am a fully qualified and skilled mechanic - able to diagnose and repair vehicles also inspect them - i have worked on high end prestige vehicles including old classic cars as well as motor homes also thous...
1285 Reviews
Garage in Swindon, 20 years of experience
I did my apprenticeship at a garage in Swindon as I studied with Northstar College. After graduating I left and went to Charlie Browns auto services for 2-3 years. Following my time at Charlie Browns I went ...
RUSS • 22nd January 2026
12 Reviews
Garage in Gloucester, 8 years of experience
As a qualified Master technician, I pride myself on providing honest and quality repairs and ensuring good value for money by accurate diagnostics and live data readings. After training and running my own co...
RACHEL • 22nd January 2026
Citroen C3 • Additional work following previous booking
125 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 ...
MANDY • 22nd January 2026
Jaguar E-PACE • Diesel particulate filter (DPF) chemical clean and regeneration
13 Reviews
Garage in Hyde, 20 years of experience
Welcome to Kirby's Auto Repairs LTD, the newest service centre in Tameside We aim to deliver exceptional vehicle maintenance at the very best price! Our facilities are state-of-the-art, and our mechanics hav...
MARK • 22nd January 2026
28 Reviews
Garage in Ludgershall, 24 years of experience
We are a small but highly equipped and experienced garage on the outskirts of Andover, offering everything from diagnostics and general repairs through to electronic modifications and remapping. We stand on ...
IGNACIO • 22nd January 2026
Volkswagen Caravelle • Premium Pre-purchase Inspection
146 Reviews
Garage in Birkenhead , 30 years of experience
We offer complete vehicle services. Bodywork, accident damage, scrapes, dents including insurance work Brakes, servicing, suspension, MOT work, including welding, exhaust, Diagnostics, engine change, colle...
5 Reviews
Mobile mechanic in Wellesbourne, 10 years of experience
Plenty of experience both main dealer and independent. Servicing and repairs undertaken Qualified MOT tester
SIMON • 22nd January 2026
Volkswagen Crafter • Diagnostic Inspection
14 Reviews
Garage in Uxbridge , 11 years of experience
We are MOT garage with 11 years of experincw working as vehicle technicians and MOT inspectors. Our journey originally started in AMA motors in 2014 where I was repairing and inspecting customer cars, I was ...
ALEX • 22nd January 2026
Ford Focus • Full Service
16 Reviews
Mobile mechanic in Glasgow, 9 years of experience
Mobile diagnostics and fault-finding • Full vehicle servicing (interim & major) • Brakes (pads, discs, calipers) • Suspension repairs (shocks, springs, arms, links) • Engine repairs including wet bel...
IAN • 22nd January 2026
Vauxhall Corsa • Car Won't Start 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
- AM Performance Cars Ltd, Newcastle Upon Tyne
- Attleborough Service Centre (norfolk) Ltd, East Harling
- Autotech Limited. Star Automotive, Erith
- Docs Mobile Mechanic, Birmingham
- Eastbourne Motor Care Mobile, Eastbourne
- Emergency Vehicle Assistance, Romford
- Hiq Ashford, Ashford
- House Of Gain Remapping, Pinxton
- Jva Motors, Bournemouth
- One Stop Motor Services, Chipping Norton
- Porters Road Garage, Ebbw Vale
- Prestige And Performance, Derby
- Tc Mobile Motors, Sittingbourne
- W Shane LTD, Manchester