Top Mechanics For Smart/MCC Catalytic Converter Replacement & Repairs
90 Reviews
Garage in Colchester , 6 years of experience
Over 6 years experience in mobile mechanics. Attending to various models of vehicles. Good work rate and efficient.
EMMA • 16th June 2026
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Garage in Nottingham, 18 years of experience
MOT Service Hybrid Battery EGR System Clean Engine Maintenance Service
EDWARD • 15th June 2026
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Garage in Leicester, 15 years of experience
At J.J. Auto Repair we always aim to be helpful and friendly. We offer a range of services including, Mobile mechanic, Diagnostics, Full service, Multimedia system fitting, and more...
JEERANAN • 15th June 2026
Suzuki Swift • Car Won't Start Inspection
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Garage in Maidstone, 23 years of experience
Car, Truck & Motorcycle repairs & re-builds. All aspects of servicing & maintenance. Pre MOT checks and tests arranged. Timing belts/chains, Head gasket replacement, Turbo replacements and upgrades, Custo...
RILEY • 15th June 2026
Vauxhall Astra • Car Won't Start Inspection
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Mobile mechanic in Chessington, 20 years of experience
Conduct comprehensive vehicle inspections for MOT testing, ensuring compliance with UK road safety standards. • Perform engine diagnostics and repair electrical and mechanical issues using advanced diagnos...
MICHAEL • 15th June 2026
Nissan Qashqai • Additional work following previous booking
40 Reviews
Mobile mechanic in Oldham, 12 years of experience
I am a skilled and reliable vehicle technician with hands-on experience working on a wide range of vehicles, including light commercial vans and passenger cars. I have carried out repairs and diagnostics on ...
PETER • 15th June 2026
Vauxhall Astra • Clutch replacement
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Garage in Manchester, 20 years of experience
Here at NW we undertake all aspects of automotive work—including engine diagnostics, suspension, brakes, clutches, electrical, full servicing and bodywork. We are specialists in Diesel Particulate Filter (...
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Garage in Birmingham, 17 years of experience
Talk Torque Ltd T/A Car Surgeon™ Car Surgeon™ is an auto repair facility dedicated to quality service and maintenance of general, high-end and performance vehicles at an affordable price. Many mainland...
FRANCIS • 15th June 2026
Renault Scenic • MOT with collection & delivery
14 Reviews
Garage in Runcorn, 30 years of experience
NTDA, REACT, Licensed Mobile Tyre Technician, MOT Tester, lloyds British Diagnostics, IMI
CLAIRE • 15th June 2026
Toyota C-HR • Tyre fitting
118 Reviews
Garage in Sunbury-On-Thames, 15 years of experience
10 Years Main Dealer mechanic MINI/BMW Audi Citroen Mitsubishi 1 year independent garage mechanic 4 years mobile mechanic and workshop mechanic
FIONA • 15th June 2026
Mercedes-Benz C-Class • Oil leak investigation
5 Reviews
Mobile mechanic in Bedfordshire, 7 years of experience
RS Performance provides specialized ECU remapping, engine diagnostics, and mobile mechanical repairs throughout Central Bedfordshire and surrounding areas.
90 Reviews
Mobile mechanic in Nottingham, 5 years of experience
I am a qualified mechanic with 5 years of hands-on experience in vehicle diagnostics, servicing, and repairs. Over the years, I’ve worked on a wide range of vehicles, from everyday cars to light commercial v...
KELLY • 15th June 2026
Volkswagen Golf • Additional work following previous booking
6 Reviews
Mobile mechanic in Coventry , 7 years of experience
I have 7 years of hands-on experience in the automotive industry, along with 4 years of technical education. I’ve worked across a wide range of garages in the UK, including independent workshops, RAC Appr...
PRITISH • 15th June 2026
62 Reviews
Mobile mechanic in Derby, 16 years of experience
Experienced Mechanic with over 16 years in, fleet, and hire/rental operations. Hands on workshop Experience at main dealers & independent Garages. Good technical background in diagnostics, mechanical repair,...
PAM • 15th June 2026
Smart fortwo • Diagnostic Inspection
651 Reviews
Garage in Uckfield , 25 years of experience
Full range of mechanical work including full diagnostic equipment, service and repair, welding, mot prep, car delivery
MILES • 15th June 2026
Ford S-MAX • Brake discs and pads replacement - front (both)
Frequently asked questions about Smart/MCC 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 Smart/MCC 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 Smart/MCC 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 Smart/MCC?
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 Smart/MCC?
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 Smart/MCC 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 Smart/MCC 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 Smart/MCC catalytic converter replacement?
Yes, many local garages are able to offer collection and delivery for a catalytic converter replacement on your Smart/MCC. 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 Smart/MCC.
Can mobile mechanics do Smart/MCC catalytic converter replacement at my home or office?
Yes, mobile mechanics can do a catalytic converter replacement at your home or office on your Smart/MCC, 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 Smart/MCC catalytic converter replacement cost?
The cost for a Smart/MCC catalytic converter replacement depends on the model of your Smart/MCC. 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 | |
|---|---|---|
| Smart forfour | £310 | Get exact price |
| Smart fortwo | £558 | Get exact price |
| Smart Roadster | £272 | Get exact price |
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 Smart/MCCs
- AL’S MECHANICS AND SALES LTD T/A Als Mobile Mechanics, Aberdeenshire
- Alin, Abbots Road
- Auto Solutions East Ltd, Glasgow
- Dans Tyre Services Ltd, Ashbourne
- Essex Vehicles Ltd, Basildon
- JB Autoworx, Preston
- M.B.Auto, Aylesford
- M.P Autos, Wick
- Mkautostone Vehicle Repaits & Training Centre Limted, London
- Mobile Auto Services, Almondbank
- Motorway Assist Limited, Howwood
- Mp Autos, Crewe
- Nigel-Smith.Com, Brentwood, Shenfield
- Oakshott’s Cars And Commercials, Fareham
- Portsolent Car Centre, Portsmouth