Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
756 Reviews
Mobile mechanic in Leeds, 8 years of experience
I started by studying at City College in Leeds and gained my City & Guild qualifications up to level 3 and I undertook a garage job whilst studying in order to gain great experience. Whilst I was studying I ...
JOHN • 6th January 2026
156 Reviews
Mobile mechanic in Birmingham, 8 years of experience
I am a mobile mechanic with over 8 years of hands-on experience in the automotive repair industry. Specializing in convenience and quality, I am bringing professional automotive services directly to my custo...
1291 Reviews
Garage in Horton, 20 years of experience
Jon owns and operates SMS Autocare and has been running the business for over 15 years in the Slough area. Prior to setting up SMS Autocare Jon completed his apprenticeship and was then a mobile mechanic for...
231 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
36 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
24 Reviews
Mobile mechanic in Bedworth , 15 years of experience
Hgv and LCV technician for Renault trucks Technician for fagan and whalley for 5 yres Car technician for 5 yrs working on all makes And models carrying out repairs from servicing Clutch, head gaskets, s...
110 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.
MICHAEL • 6th January 2026
Mazda MX-5 • Brake caliper replacement - front (driver side)
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Garage in Sawell, 20 years of experience
Urban Autocare – Your Trusted Vehicle Experts Is your car in need of top-notch care? Urban Autocare is here for you! At Urban Autocare, we provide expert vehicle services to keep your car performing at...
BRANDON • 6th January 2026
Ford Transit Custom • Turbocharger replacement
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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 ...
AMBER • 6th January 2026
Nissan Qashqai • Coolant/antifreeze drain & refill
410 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 ...
86 Reviews
Garage in Walthamstow , 15 years of experience
Hi, I started working in a garage at around 2008 and since last 2 years I have worked as a mobile mechanic for a company with fleet of vehicles in and around London, and up north at times in Scotland While...
134 Reviews
Mobile mechanic in Devonside, 15 years of experience
Having been in the trade for 15 years. I have various areas of experience from dealerships to fast fit garages. We can cover any job needed from minor to engine rebuilds.
A • 6th January 2026
17 Reviews
Garage in Blyth, 12 years of experience
We are a mobile mechanic and vehicle recovery service covering the north east for the past 6 years. We offer a reliable and friendly service whatever your vehicle needs We are always happy to help.
CHRIS • 6th January 2026
Hyundai ix35 • Fuel filter replacement
156 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...
GEMMA • 6th January 2026
195 Reviews
Garage in Bethersden , 20 years of experience
I have been in the motor trade 20 years. During this time I have worked for independent garages including BMW and Mercedes main-dealers. I have progressed through the ranks as a master tech and workshop co...
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
- BASBE Services Ltd, Washington
- DC Autotech, Cwmbran, Croesyceiliog
- Garage Works, Northants
- JF Services, Stockport
- Kevin Mahon, Derry
- MJ CAR SOLUTION LTD, Southampton
- NMK Auto Centre, London
- Nassier Suleyman, Ilford
- PT Automotive, Langport
- Positive Vehicle Solutions, Croydon
- Reading Auto, Reading
- SAD - Automotive Mobile Repair (CB), Cambridge
- SX Customs LTD, Stanford Le Hope
- Smartbuy Garages Ltd T/A Cwmbran MOT And Service Centre, Cwmbran
- Supreme Motors Servicing And Repairs Ltd, Arundel