Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
112 Reviews
Garage in Arundel , 20 years of experience
Been working on cars from a very early age to get to where I am today. From diagnostic work, wiring, engine replacements to general service and brakes. No job is to big or to small.
CARLOS • 8th January 2026
157 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...
DAVID • 8th January 2026
Ford Focus • Brake discs and pads replacement - front (both)
9 Reviews
Mobile mechanic in Birmingham, 13 years of experience
Worked in an independent garage and a dealership. I can complete the following to a high standard: . MOT test . Services and repairs . Brakes . Exhaust . Steering . Suspension . Light diagnostic wor...
DAVID • 8th January 2026
Ford EcoSport • MOT with collection & delivery
1 Reviews
Garage in Gloucester, 8 years of experience
As a qualified Master technician, I pride myself on providing honest and quality repairs and ensuring good value for money by accurate diagnostics and live data readings. After training and running my own co...
43 Reviews
Mobile mechanic in Cattistock, 16 years of experience
16 years experience as a mechanic, now mobile based. Love what I do and always happy to help.
PAUL • 8th January 2026
Ford Mondeo • Battery replacement (vehicles without stop/start system)
203 Reviews
Garage in Portsmouth, 21 years of experience
Over the years I have worked in various garages, carrying out mechanical repairs, including, servicing, general repairs, mot repair, cambelts/timing chains, clutches, head gaskets, engine replacements etc I ...
JOE • 8th January 2026
Fiat Grande Punto • Clutch replacement
79 Reviews
Mobile mechanic in Hull, 19 years of experience
19 Years Experience Ford Master Technician Ford High Voltage Training Love what I do.
126 Reviews
Garage in Sittingbourne , 15 years of experience
TC MOBILE MOTORS Carrying out diagnostics inspection Servicing Cambelts Timing chains Engine rebuilding Brake pads and discs Suspention repairs DPF repairs and more anything needed i can repair...
10 Reviews
Garage in Alloa, 10 years of experience
Working around cars for 15 years . Time served 10 years . With Arnold Clark . And GTG training facility. Servicing. Brakes , clutches , gearboxes. Drivetrain. Suspension work. Air conditioning F gas trained ...
CHRISTOPHER • 8th January 2026
Mercedes-Benz A-Class • Starter motor replacement
154 Reviews
Garage in Northampton, 7 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...
IGOR • 8th January 2026
Infiniti Q30 • Glow plugs replacement (all)
148 Reviews
Garage in Manchester , 22 years of experience
We are a small family-run company. We offer recovery and repairs. We will provide as much advice as we can before carrying out any repairs. We are approachable and always happy to help. Some of the repairs w...
PIARA • 8th January 2026
Renault Grand Modus • Crankshaft (CKP) position sensor replacement
130 Reviews
Garage in Walsall, 25 years of experience
Our experts will ensure that your car is professionally serviced to enable you to enjoy safer driving when you’re on the road.
13 Reviews
Mobile mechanic in Wimborne, 9 years of experience
CMR autos - Mobile Mechanic, we provide basic mobile repair services to you at your convenience. Our professionally equipped work van has most of the modern up to date equipment and tools on board to carry o...
82 Reviews
Mobile mechanic in Marlborough, 41 years of experience
* 30 years working in Spain as a mechanic within my family's garage. * 10 years working in UK as a mechanic, the last 3 years working in BMW.
38 Reviews
Mobile mechanic in Blackpool, 8 years of experience
4 years at Spurrier Motorsport as a tecnician, 3 years at Halfords Autocentre as a technician, MOT tester and assistant manager for a year, 1 year mobile mechanic self employed
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
- Bear Diagnostics, Tadworth
- Central Garage ARC Limited, Brighouse
- Cousins Auto Repairs, Newborough
- Crown Garage Services Bristol Ltd, Bristol
- Deanshanger Vehicle Services, Milton Keynes
- Hometune, Loppington
- Mobitech, Hull
- Moores Mobile Auto Repairs, Chorley
- Mymachineid, Cleethorpes
- Nizauto, Blackburn
- Noman Motors, Brentford
- R&R Automotive, Chelmsford
- SM Mobile Vehicle Diagnostics, Solihull
- SMC Auto Electrics, Chapelhall
- Springfield Garage, Dewsbury