Top Mechanics For Mercedes-Benz Catalytic Converter Replacement & Repairs
26 Reviews
Garage in London, 20 years of experience
Deniz Auto Repairs is a fully equipped DVSA approved MOT station with a total of 3 ramps and fully qualified mechanics with technical expertise. We ensure to deliver first-class customer care and good value ...
JESSIE • 17th January 2026
Ford Fiesta • Major Service
78 Reviews
Mobile mechanic in East Renfrewshire , 25 years of experience
17 Years Mercedes-Benz 3 Years Auto Electrical Services 4 Years Rolls Royce (Aviation).
BARRY • 17th January 2026
MINI Mini • Spark plugs replacement
83 Reviews
Mobile mechanic in London, 12 years of experience
Extensive history in the automotive industry. Specialising in; • programming, coding (ecu/bcm/pcm & more). • ecu tuning - engine protection as well as economical tuning for petrol & diesel cars used for ...
GERALD • 17th January 2026
BMW 7 Series • Standard Pre-purchase Inspection
108 Reviews
Garage in Newcastle , 30 years of experience
I served my time at bds motors whilst attending college I have worked for numerous garages and had my own business for 8 year before starting work in a management role for great north auto centre and I am n...
248 Reviews
Mobile mechanic in Midlothian , 9 years of experience
Hi, I'm Dylan your local mobile mechanic. I have always had a passion for cars from a very young age, hence my career choice. I started out as an apprentice in my local independent garage working on a...
49 Reviews
Garage in Birmingham, 10 years of experience
• Diagnosing vehicle faults manually or with the aid of software and digital tools • Preparing cost and time estimates for work done • Repairing and replacing faulty vehicle parts • Performing test drives...
ISMAEEL • 17th January 2026
Mitsubishi Shogun • Car Won't Start Inspection
76 Reviews
Mobile mechanic in Leeds, 20 years of experience
I am a fully qualified motor vehicle mechanic with over 20 years of hands-on experience in the automotive industry. I have extensive experience working as a mobile mechanic, carrying out repairs, servicing, ...
48 Reviews
Mobile mechanic in Solihull, 22 years of experience
Expert automotive repairs at your doorstep. Our certified mechanics deliver: • Full vehicle diagnostics and repairs • Engine and gearbox specialists • 1-2 hour response time • 24-hour repair completion ...
581 Reviews
Garage in Uckfield , 20 years of experience
Full range of mechanical work including full diagnostic equipment, service and repair, welding, mot prep, car delivery
NATALIYA • 17th January 2026
Peugeot 207 SW • Additional work following previous booking
77 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...
WES • 17th January 2026
165 Reviews
Garage in Nuneaton, 6 years of experience
With over 6 years of experience in diagnostic and repair of a wide range of cars i can to provide services from the basic such diagnostic and oil change up to repair of the brake system, suspension, clutc...
24 Reviews
Garage in Birmingham, 20 years of experience
With over 20 years of experience as a qualified mechanic, I’ve worked on a wide range of vehicles, from everyday cars to commercial vans. I take pride in delivering honest, reliable, and high-quality workman...
DANIEL • 17th January 2026
Vauxhall Astra • Additional work following previous booking
9 Reviews
Garage in Falkirk, 8 years of experience
Started as a tyre fitted at Halfords auto centre and worked my way up 8 years later I’m full nvq level 3 from services to full repairs I have everything covered
94 Reviews
Garage in Stevenage, 20 years of experience
We are a professional automotive service company with over 20 years of experience in the industry. Our qualified mechanics are passionate about delivering high-quality car repairs and exceptional customer se...
RUTH • 17th January 2026
Toyota Yaris • MOT with collection & delivery
419 Reviews
Garage in Hayes, 12 years of experience
Having being in the motortrade industry for over a decade, I have increased my knowledge dramatically by getting my level 3 in vehicle maintenance, then going onto university to study motorsport engineering ...
CHRISTOPHER • 17th January 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
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