Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
20 Reviews
Garage in Waterlooville, 11 years of experience
D.N Motor Services offers all aspects of vehicle servicing and repair, including but not limited to: Locking wheel nut removal Clutch replacements Routine servicing and maintenance MOT failure re...
RHODRI • 9th February 2026
Mazda Mazda3 • Brake discs and pads replacement - rear (both)
94 Reviews
Garage in Luton, 15 years of experience
SWH AUTOMOTIVE LTD is the perfect place to keep your car in the best condition. With a wide range of services including mechanical repair, body repair, windscreen replacement or repair, air conditioning gass...
218 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...
32 Reviews
Garage in St Ives, 15 years of experience
30 years experience combined 20+ of those years within Lexus and Toyota, providing servicing, repairs and vehicle remapping in the Cambridgeshire area
JOSIE • 9th February 2026
Volvo V60 • Major Service
9 Reviews
Mobile mechanic in West Sussex, 9 years of experience
Hi, I’m Charlie! With over 8 years experience in the trade working on all makes and models, specialising in all aspects of vehicle diagnostics, electrical faults and repair, keeping your vehicle running smoo...
36 Reviews
Mobile mechanic in Eastbourne, 20 years of experience
Hi my name is lee. After years of watching my Dad and my older brother working on cars, doing bodywork and mechanics, I decided that this was the trade for me. I have specialised in mechanics for over 20...
ELIAS • 9th February 2026
Jaguar F-PACE • Turbocharger replacement
75 Reviews
Mobile mechanic in Stamford, 10 years of experience
. Rs Mobile Services Ltd, we are based in Stamford - we have over 50 years of experience in our garage which we want to put to use on your cars.
BRIGITTA • 9th February 2026
Renault Clio • Additional work following previous booking
360 Reviews
Mobile mechanic in Wellingborough , 10 years of experience
Hi I’m Michal. I've been doing cars for about 10 years specifically for Vehicle Mechanical, Electrical and Trim (MET) Technician last 2.5 years. Had lots of training in recent VW group technology so that’...
68 Reviews
Garage in Somerset , 25 years of experience
I have been a mechanic for 25 years, I'm also a mot tester. I'm fully qualified to level 3 standard, I offer all repair work including, General servicing, mot fail repair, exhausts, brakes, tyres, suspens...
SALLY • 9th February 2026
Kia ceed • Major Service
4 Reviews
Mobile mechanic in Birmingham, 10 years of experience
We offer a wide range of vehicle services, Mot’s also includes Car Repairs and Diagnostics for all vehicle makes and models. Our services are catered to both commercial and domestic vehicles (not including a...
1367 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...
91 Reviews
Garage in Bristol, 15 years of experience
At Ottos Group, we strive to look after all your vehicle needs. Whether you are a business requiring fleet maintenance or a member of the public. We have facilities to cater for cars all the way up to large ...
STEVE • 9th February 2026
Mazda Mazda3 • Full Service
67 Reviews
Mobile mechanic in Stoke On Trent , 5 years of experience
Hi, I’m a mobile mechanic based in Stoke-on-Trent with over 5 years of hands-on experience in the trade. I pride myself on delivering reliable, honest, and convenient service – right at your doorstep. Whethe...
40 Reviews
Garage in Norwich, 21 years of experience
20years experience in the motor trade. All types of work considered.
PETER • 9th February 2026
Peugeot 108 • Battery replacement (vehicles without stop/start system)
50 Reviews
Garage in Egham , 6 years of experience
Over 6 years experience in mobile mechanics. Attending to various models of vehicles. Good work rate and efficient.
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
- Auto Repairs Liverpool, Liverpool
- C G Mechanics LTD, West Malling
- CORNERWAYS GARAGE, Bedforshire
- DMS Tyres, Stoke-On-Trent
- JHAUTOS, Swansea
- Jojocarrepairs, Wood Green
- Motor-Canics Ltd, Ilkeston
- NSG AUTOS, Hertfordshire
- Ovidiu Eugen Bratescu, Birmingham
- Telstar Garage, Helston
- Testec Automotive & EV, Crawley Down