Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
196 Reviews
Garage in Dunstable , 8 years of experience
As a dedicated mechanic, I take immense pride in my work, knowing that every repair and every adjustment I perform keeps vehicles running smoothly and safely. My hands are skilled, my mind is sharp, and my p...
MICHAEL • 16th February 2026
Skoda Octavia • Premium Pre-purchase Inspection
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Garage in Birmingham , 10 years of experience
I have been working in the motor trade since 2016 and I did apprenticeship for 2 years for a German Car Repair Specialist. Once qualified achieving my Level 3 in City and Guilds I was offered a job and been ...
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Garage in Southampton, 11 years of experience
For Quality Car Repairs & Servicing, Look no Further than Hon Car Service The team at Hon Car Service have been working hard providing drivers in Southampton with high quality, reliable car repairs, MOTs an...
MARION • 16th February 2026
Volkswagen Golf • Full Service
3 Reviews
Garage in Malvern, 21 years of experience
We service and repair all makes and models of vehicles. From small city cars to large SUVs, petrol and diesel engines, manual and automatic transmissions. Our experienced technicians have the knowledge and e...
16 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...
JOHN • 16th February 2026
Citroen Dispatch • MOT with collection & delivery
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Garage in Billericay, 18 years of experience
Our Services - Pre Purchase inspections 5* reviews - Complete Computer Diagnostics - Complete Safety Analysis - Rideability Problems - Tune - ups - Oil Changes - Tyres - Brake repair specialist -...
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Mobile mechanic in Lanarkshire , 15 years of experience
We are SAS , We are mobile mechanics serving Scotland . We will come to your home or workplace to repair and service your vehicle. You can see all the different kinds of work we do on our web site and facebo...
WILLIAM • 16th February 2026
Vauxhall Antara • Diagnostic Inspection
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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.
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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...
JONATHAN • 16th February 2026
4 Reviews
Garage in London, 20 years of experience
We serve customers in Acton, Ealing, Chiswick, Brentford, Hammersmith and all the surrounding areas, delivering trusted, high-quality care for every type of vehicle. We offer a full range of services coverin...
CHARLOTTE • 16th February 2026
173 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...
DAN • 16th February 2026
Ford Focus • Brake caliper replacement - front (driver side)
852 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...
GEORGI • 16th February 2026
Mercedes-Benz E-Class • Full Service
76 Reviews
Mobile mechanic in London, 15 years of experience
Auto Eng Repair is a well established repair company that has built up an enviable reputation over the last 15 years. We pride ourselves on our commitment to provide a professional and speedy service at all ...
RAMIN • 16th February 2026
Nissan Qashqai • Engine oil & filter replacement
85 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...
131 Reviews
Mobile mechanic in Bacup, 15 years of experience
11 years as a race mechanic- trackside repairs and vehicle setup changes 6 years as a Porsche specialist - clutches, servicing. engine repairs, suspension replacements and wheel alignments amongst other rou...
DAVID • 16th February 2026
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
- Addison Garage Services, Exeter
- Ajg Autos UK, Cambridge
- Braystones Automotive Ltd, Newcastle Upon Tyne
- CPWARING LIMITED, Driffield
- D & M AUTO MOBILE SERVICES LTD, Middlesex
- GM Motor, London
- Hoole Mot And Service Centre, Preston
- Hugo’s Motors, Didcot
- L&L Autos, Cleethorpes
- Peterborough Auto Repairs, Peterborough
- Renovo Automotive Ltd, Basingstoke
- Savage Automotive Ltd, Salisbury