Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
62 Reviews
Garage in Lincoln, 15 years of experience
specialising in HGV PMI's for trucks and trailers including roller brake tests, mechanical repairs on trucks and cars, computer diagnostics and a wide range of additional services
PETER • 12th March 2026
Vauxhall Insignia • Full Service
74 Reviews
Mobile mechanic in Trowbridge, 20 years of experience
8 years at a Volkswagen dealership as a vehicle technician. 1 year at independent garage. 4 years as a master technician at a Audi / VW specialist. 15 Years MOT testing. 5 Years mobile mechanic
STEPHEN • 12th March 2026
510 Reviews
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...
443 Reviews
Garage in Aylesbury, 7 years of experience
Clutch,diagnostic,brakes,servicing,timing belt and chain,all mechanical jobs,mot’s
NORMAN • 12th March 2026
Citroen Berlingo • Timing belt replacement
29 Reviews
Garage in Liverpool , 10 years of experience
Combining technical know-how with a personal touch, ST Garage delivers trusted and efficient service, ensuring vehicles are repaired and maintained to the highest standards.Based in Liverpool, ST Garage has ...
PHILIP • 12th March 2026
BMW 1 Series • Full Service
11 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...
STUART • 12th March 2026
Ford Focus • Clutch replacement
518 Reviews
Garage in Birmingham, 21 years of experience
I have over 2 decades of experience in the motor industry..
KATRINA • 12th March 2026
77 Reviews
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...
462 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!
2 Reviews
Garage in Nottingham, 25 years of experience
How a Garage should be. Our focus is entirely on our customers, by providing high quality repairs in a timely manner for a fair price. We have been independently reviewed and rated as the Best Garage in N...
MATTHEW • 12th March 2026
Citroen C3 Aircross • MOT with collection & delivery
34 Reviews
Garage in Glengormley, 15 years of experience
As we are a mobile service at A.G Autos - we can arrange to come for any diagnostic and repair work. We have the experience over a variety of machinery that will be tailored to your every need. We've got...
MARK • 12th March 2026
Jaguar F-TYPE • Diagnostic Inspection
2 Reviews
Mobile mechanic in Truro, 10 years of experience
full time technician in a garage also part time mobile technician 10 years+ in the trade with level 3 hybrid and electric vehicle training.
51 Reviews
Garage in Bradford, 15 years of experience
15+ Years Of Experience In The Mechanical Trade | Qualified Apprentice Through City & Guilds | Qualified MOT Tester | Level 3 IMI/Diploma | Level 3 Award in MOT Test Centre Manager/AEDM. Reliable, energe...
KATHRYN • 12th March 2026
Renault Zoe • Major Service
22 Reviews
Garage in Bolton, 5 years of experience
Standard MOT Testing (Cars, Small Vans) Up to Class 7 MOT Testing and Servicing/Repairs (goods vehicles over 3,000kg up to and including 3,500kg DGW) Interim & Full Vehicle Servicing Engine Diagnostics Br...
765 Reviews
Mobile mechanic in London, 9 years of experience
3 years at AVS where I started my mechanics as an apprentice, mastering general repairs and servicing on a wide range of vehicles , 2 years as a fast fitter in car giant. Perfecting replacing brakes, tyres ...
DAVID • 12th March 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
- Applied Braking Services, Bedford
- BATES MOTOR REPAIRS LTD, Whitstable
- Bond Street Garage LTD, Hinckley
- Grant Blenkinsop Mobile Vehicle Services, Ashbourne
- HS MOTORING SOLUTIONS LIMITED, London
- Happy Mechanics, Irvine
- LC Autocare, Northwich
- Law-Fix Automotive, Cardiff
- Marcus Reid, Birmingham
- S Drewery, Alton
- The Workshop, Birmingham