Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
169 Reviews
Garage in Birmingham , 20 years of experience
Hi, my name is marcus. I am a highly qualified mechanic with over 20years experience. I am friendly, polite, reliable and efficient. Your safety is of the utmost importance . I take pride in my work and w...
JASON • 18th January 2026
68 Reviews
Garage in London, 15 years of experience
Fully Qualified Motor Mechanic 16 years Experience in Mechanical and Repair Hi my name is Louis and i am happy to help with all types of car/van problems My services include Sevicing Diagnostic...
STEPHEN • 18th January 2026
Citroen C4 • Timing belt replacement (Wet belt including sump/oil pickup clean)
216 Reviews
Garage in Norwich, 15 years of experience
Select A Driver Ltd. - Automotive Repair is a small team of mobile mechanics, with loads of experience and knowledge to keep you on the road, with the added benefit of not taking you car to a garage. We will...
74 Reviews
Garage in Portsmouth, 10 years of experience
Over 10 years experience mobile and for local garages. We offer services at your location and at your convenience.
213 Reviews
Garage in Nottingham , 15 years of experience
I am the owner of the garage, we have been operating for the past 16 years. We are able to carry out all kinds of repairs including diagnostics, servicing, brakes, suspension, clutches, timing belts, gear bo...
MAXINE • 18th January 2026
Vauxhall Vivaro • Turbocharger replacement
147 Reviews
Garage in Nuneaton , 20 years of experience
Here at platinum diagnostic we aim for perfection, reliability and honesty every time. With over 20 years served in the motor trade, service, diagnostic, mot, fault finding, etc on a wide rage of cars an...
81 Reviews
Garage in Nr Leominster., 37 years of experience
Having worked on thousands of Vehicles, Here at Carbon Pro Limited & Pro Tuning & Tyres, our experienced Technicians are capable of repairing and refurbishing a Vast range of vehicles. Our primary Business...
38 Reviews
Garage in Portsmouth , 16 years of experience
10 years vag specialist 6 years garage owner all makes and models servicing and mot (arranged) specialist in cambelts wetbelts diagnostic electrical faults clutches
22 Reviews
Garage in Leicestershire, 10 years of experience
I am a dedicated and skilled Main Dealer Technician with over 10 years of experience working with respected automotive brands, including Volkswagen, Audi, BMW, and Volvo. My career has largely focused on dia...
46 Reviews
Garage in Wexham, 18 years of experience
I have been in the motor trade for 18 years. I have worked with multiple dealerships like Land Rover, Mercedes and BMW and have gained extensive experience over the years. I now work in a lovely garage on a ...
SCOTT • 18th January 2026
174 Reviews
Garage in Stockport, 20 years of experience
I have 20 years experience in the auto repair industry which started with my apprenticeship at an independent. Having completed my apprenticeship I then went onto work for a number of other independents befo...
ANTHONY • 18th January 2026
Audi TT Coupe • Timing chain replacement
28 Reviews
Garage in Deal, 12 years of experience
Fully Level 3 qualified light vehicle technician, offering fully insured mobile mechanic services across Kent. Qualified Class 4/7 MOT Tester Hybrid/EV Level 1 FGas (Air con)
REBECCA • 18th January 2026
Toyota AYGO • Full Service
201 Reviews
Garage in Walsall, 15 years of experience
AA Approved Repairer RAC Accredited Repairer NHS Discount Up to 30 Years Experience throughout the whole company Air Conditioning Service/Re-Gas
AKOS • 18th January 2026
Nissan Qashqai • Brake discs and pads replacement - front (both)
82 Reviews
Garage in Littleport, 12 years of experience
Tyres, Wheel balancing Mobile diagnostic Car wrap Timing belts Clutches Pre-Purchase inspection Brakes,suspensions,engines,Pre Mot checks,Valeting, paint polish,etc. Car body resprays and repairs as ...
ALAN • 18th January 2026
Vauxhall Insignia • Car Won't Start Inspection
15 Reviews
Garage in Bristol, 11 years of experience
11+ Years of Reliable Delivery: Consistently provided fast, hassle-free services like basic repairs, cleaning, and errands for over 300 satisfied clients, earning 5-star reviews for punctuality and attention...
FIANN • 18th January 2026
Honda Civic • Brake discs and pads replacement - front (both)
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.
Book a trusted mechanic today
Get an instant quote, then book a vetted mechanic to fix your car at your home or office.
- Vetted mechanics
- Save up to 50%
- Fast online booking
Mechanics that work on Mercedes-Benzs
- Brandon D, Thurrock
- CMR Autos, Wimborne
- EMB Automotive, Wisbech
- Gittings Classic And Modern, Radstock
- Gwynedd Mobile Technician, Porthmadog
- Hon Car Service, Southampton
- Jrs Mobile Mechanics, Manchester
- KEMS Autos Limited - Practical Car And Van Rental, Darley Dale
- Pitstop Autos, Newcastle Upon Tyne
- S.M.F Auto Mechanics, Burnham
- Sinclair’s Servicing & Repairs, Sheringham
- Ss Jdm Auto Ltd, Rotherham