Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
205 Reviews
Mobile mechanic in Essex , 33 years of experience
Worked at at Bmw and Ford Specialist on Fords and BMW Diagnostics Specialist Worked at Met Police Workshop Worked along side London Ambulance Service supporting vehicle maintenance during lockdown F...
JAMES • 2nd March 2026
1 Reviews
Garage in Rotherham, 20 years of experience
I have 20 years plus of mechanical experience, completing college qualifications, apprenticeships, before going self-employed and setting up my own business.
15 Reviews
Garage in Sheffield, 14 years of experience
Here at KP AUTO DD we do a wide range of vehicle services and remapping services We work weekends and evenings in the week to help those who work in the day and cant get their vehicle in during normal gara...
163 Reviews
Mobile mechanic in Reading, 21 years of experience
Mobile mechanic offering the following services for all makes and models. Servicing Repairs Diagnostics Previously worked for the biggest fleet management service for the UK, servicing and repairing...
479 Reviews
Garage in Middlesbrough , 12 years of experience
BMW Mini Rolls Royce Independent BMW group dealer level diagnostics and able to write official BMW service history. BMW Master Tech ZF Gearbox Specialist Diagnostics; Smoke Tests ISTA (BMW GROUP...
90 Reviews
Mobile mechanic in Aylesbury, 6 years of experience
I work on all types of mechanical work from service, break pads and clutch work. I am very time efficient and effective and doing what I do best. This is a new account. I have experience in doing clu...
DHIRENDRA • 2nd March 2026
Peugeot 307 • Clutch replacement
216 Reviews
Garage in London, 15 years of experience
Previously worked at main dealers before such as Toyota, BMW, Peugeot Citroen, Volkswagen Group. Work on all models of vehicles have all the appropriate tools and diagnostics for them all.
443 Reviews
Mobile mechanic in Peterborough, 20 years of experience
Mobile vehicle services across a wide range of vehicles. 20 years experience in the trade and main dealer experience. Everything from brakes and servicing to clutches and vehicle diagnostics
453 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!
MATTHEW • 2nd March 2026
Vauxhall Astra • Starter motor replacement
39 Reviews
Garage in Gloucester, 5 years of experience
S&s car service - 5 years Car service, mechanical repairs Borgwarner- craft engineer - 6 months Diesel pumps, injectors manyfacturing, fault finding
PAUL • 2nd March 2026
Volvo S90 • Diagnostic Inspection
107 Reviews
Garage in Liverpool, 13 years of experience
Hello, I'm Alan. I am a experienced mobile mechanic and garage owner that serves Liverpool, and surrounding areas. I have years experience in the trade and industry, working on vehicles such as HGV for lead...
6 Reviews
Garage in Birmingham, 15 years of experience
Benjamin offers engine spacial inspection and diagnostics, brake repairs, engine wiring programming and timing chain or belt repair
STEPHEN • 2nd March 2026
Jaguar XJ Series • Car Won't Start Inspection
226 Reviews
Garage in Birmingham, 9 years of experience
I understand that your vehicle is your pride and joy. Therefore, it’s an essential part of your life hence why I offer car repairs and maintenance to the highest standard to make sure your vehicle is running...
COLIN • 2nd March 2026
Vauxhall Corsa • Brake discs and pads replacement - front (both)
197 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.
KAY • 2nd March 2026
Suzuki Swift • Brake discs and pads replacement - rear (both)
136 Reviews
Garage in Halifax, 10 years of experience
10 years experience as a mechanic, competent in all aspects of vehicle maintenance and repair. STAR MOTORS cater for all makes/models & repairs but specialises in fast-fit work like Servicing, diagnostics...
ROBERT • 2nd March 2026
BMW 3 Series • SRS/Airbags 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
- ABAUTOMOTIVE LTD, Lewes
- ACE AUTOS ALVA LTD, Alva,Clackmannanshire
- Automeds Aylesbury Ltd, Aylesbury
- D ROGOJINA, Crewe
- DNJ Motors Ltd, Croydon
- Farmers Auto Repairs Ltd, Sedgley
- GCS Mechanical Services, Oldmeldrum
- Independent Car Specialists, Bristol, United Kingdom
- JH Motors, Essex
- Matt’s Servicing And Repair, Aldershot
- Mobile Mechanic, Whitwick
- PULSE AUTOCARE, Ossett
- Park Road Garage Ltd, Bedford
- Port Commercials Ltd, Crumlin
- Precision Auto Mobile Mechanic, Bexley, London
- Prime Vehicle Recovery, Newport
- SR Mechanic, Edinburgh
- Shaw Street Garage, Bolton
- Tailored Mobile Mechanics, Romford
- Tc Mobile Motors, Sittingbourne