Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
13 Reviews
Garage in Darwen, 7 years of experience
I have been working in the motor trade since 2012 and have been self-employed throughout this time. I am proud to be part of a well-established family-run business, with my father having worked in the garage...
JOANNE • 12th May 2026
Citroen C4 Cactus • MOT with collection & delivery
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Mobile mechanic in Stoke On Trent, 5 years of experience
Experienced mobile mechanic offering servicing, brake and suspension work, diagnostics and general vehicle repairs. I work to professional standards using quality parts and correct torque procedures, with a ...
WILLIAM • 12th May 2026
Renault Kadjar • Full Service
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Garage in Bournemouth, 20 years of experience
With over 20 years in the automotive industry, I have extensive experience working with all types of cars, from everyday vehicles to premium brands. I gained broad multi-brand experience during earlier roles...
GUS • 12th May 2026
348 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.
RICK • 12th May 2026
Audi A4 Avant • Brake pads replacement - front (all)
370 Reviews
Mobile mechanic in Leighton Buzzard, 12 years of experience
We can carry out all types of repairs no jobs too big or too small
18 Reviews
Garage in Havrhill, 12 years of experience
I am a Qualified Automotive Engineer with over 7 years of combined education and workshop experience, specialising primarily in mechanical repairs and engine systems. I am confident in my ability to work ...
1123 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...
1414 Reviews
Garage in Essex, 30 years of experience
Hi, I’ve been a mechanic since leaving school and have owned and operated my own garage since I was 25 , were you could that I’ve done most jobs on a wide range of vehicles. I’d like to say that my workmans...
MANOJ • 12th May 2026
Volkswagen Polo • Full Service
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Garage in Liverpool, 10 years of experience
A1 Auto Repair Centre opened in 2013. The garage operate a 4 ramp workshop along with 1 pit. We have the ability to cater for all makes/models & repairs. We are also a fully VOSA approved MOT test centre for...
HELEN • 12th May 2026
BMW 2 Series • Major Service
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Garage in Northampton , 18 years of experience
I’m a qualified automotive mechanic with 18 years of hands-on experience in diagnosing, repairing, and maintaining a wide range of vehicles. Over the years, I’ve built strong expertise in engine work, and ge...
515 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!
127 Reviews
Garage in Chertsey Surrey, 11 years of experience
Car and van servicing and repairs Auto electrician Fault finding Diagnostics AA approved contractor Recovery and roadside assistance Two vehicle repair workshops Located in north London and our...
IAN • 12th May 2026
Vauxhall Astra • Diagnostic Inspection
17 Reviews
Garage in East Mains Industrial Estate, Broxburn, 13 years of experience
MOT Servicing Brakes Suspension All Mechanical repairs Clutches Diagnostic Tyres Recovery Welding Valeting Air Conditioning 4 Wheel Alignment Flexfuel Hy-Carbon Clean
217 Reviews
Mobile mechanic in Shoreham-by-sea, 9 years of experience
With over 15 years of experience across main dealerships and independent garages, our mechanics know vehicles inside and out. All technicians hold a minimum Level 3 qualification. We pride ourselves on worki...
CLAYTON • 12th May 2026
Vauxhall Crossland X • Additional work following previous booking
22 Reviews
Mobile mechanic in Whitfield, Dover, 10 years of experience
Worked in various garages undertaking all repairs and maintenance on a huge selection of cars. Decided to go mobile as it's much more enjoyable and rewarding helping people Been a mechanic for over 1...
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
- BNR AUTOCARE LTD, St Helens
- Brooke Motors, Lisburn
- Cleverley Motors, London
- KIMADE SERVICES LTD, London
- Lliden Limited T/A Leven Street Motors, West Dumbartonshire
- Marsh Auto Services, Washington
- RG CAR BODY REPAIR, Manchester
- RJM Vehicle Maintenance Ltd, Ipswich
- SELTECH LTD, Nuneaton