Top Mechanics For Smart/MCC Catalytic Converter Replacement & Repairs
Garage in Leicester , 7 years of experience
If you’re looking for affordable quality work carried out by skilled, qualified and experienced technicians and delivered with great customer service in Leicester then you’re in exactly the right place- ABBE...
ADESOLA • 28th October 2025
Skoda Kamiq • Additional work following previous booking
11 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 (performance, FullEco, Ecopower) for petrol & diesel cars used for everyday optimis...
TRACEY • 28th October 2025
Honda Accord • Car Won't Start Inspection
34 Reviews
Garage in Milton Keynes, 10 years of experience
Welcome to Euro Auto Services, your all-year-round MOT testing and servicing station in Bletchley, Milton Keynes for all manufacturers and models of car. When you bring your vehicle into Euro Auto Services y...
PK • 28th October 2025
Ford Transit Custom • Clutch replacement
24 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 ...
NATALIE • 28th October 2025
Citroen C3 • Full Service
5 Reviews
Garage in Gillingham , 10 years of experience
I do have my own garage and recovary truck Vehicle mechanic with 10+ years of experience in automotive maintenance, repair, and servicing. Extensive experience working with gasoline and diesel vehicles exa...
23 Reviews
Garage in Bristol, 20 years of experience
At LJR Auto Solutions, we pride ourselves on delivering high-quality automotive repairs and servicing with a personal touch. With years of hands-on experience in the motor trade, we have worked on a wide ran...
DAVID • 28th October 2025
Volkswagen Passat CC • Alternator replacement
41 Reviews
Garage in Lutterworth, 15 years of experience
Hello there! My name is Nathan. I have worked in HGV breakdown / recovery and been a mechanic for many years, offering over 15 years experience. I am happy to assist wherever possible with any car,...
DAVID • 28th October 2025
Nissan Qashqai • Diagnostic Inspection
113 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...
31 Reviews
Garage in Helston, 16 years of experience
I have worked in several independent garages, gaining experience diagnosing and rectifying faults on all makes and models. I now work part time teaching apprentices, and part time as a mobile mechanic.
52 Reviews
Mobile mechanic in Telford, 11 years of experience
Our mobile mechanics save the hassle of driving your car to a garage. Book your mobile car service online and we'll come to your home or office.
PAUL • 28th October 2025
286 Reviews
Mobile mechanic in Ruislip, 20 years of experience
We have been in the automotive industry for about 20 years. -We are providing 100% mobile services. -high-end diagnostic equipment -servicing -maintenance -coding, programming -dpf, AdBlue specialist...
60 Reviews
Garage in Birmingham, 30 years of experience
We are here to help you maintain your vehicle with expert car servicing in Wythall, South Birmingham. Offering a flexible and bespoke service, our vehicle technicians can do everything from a simple oil chan...
MARIE • 28th October 2025
Ford Fiesta • Lower ball joint replacement - front (driver side)
49 Reviews
Garage in Maidstone, 5 years of experience
If you need a service, brakes or repair doing looking no further. Here at ASC we bring the garage to you. We offer a great hassle free service, no matter where you are we can get the job done!
1084 Reviews
Garage in Caterham, 14 years of experience
I have 8 years of experience in the automotive repair industry. I did my apprenticeship at a garage in London and have done mechanical work ever since. I worked at a garage for a few years after the apprenti...
WESLEY • 28th October 2025
Dacia Sandero • MOT with collection & delivery
14 Reviews
Garage in Manchester, 7 years of experience
All mechanical and bodywork taken, specialist in VAG group cars.
MICHELLE • 28th October 2025
Porsche Cayenne • MOT with collection & delivery
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
- Click Car Checks, Doncaster
- Dha Remapping And Services, Ledbury
- Eagle Eye Automotive, Basingstoke
- First Class Auto Repairs, Glasgow
- HBR - Hybrid Battery Reconditioning, Nottingham
- Hass Autos, London
- Instant Mot Ltd, Exeter
- MAX Fleet Support Car & Van Centre Ltd, Oldbury
- Mortimers Transport Ltd, Uttoxeter
- New Body Mechanics LTD, Aldershot
- On-Site Vehicle Services, Rotherham
- PK Mechanics Ltd, Stratford-Upon-Avon
- ST AUTOS, Burgess Hill
- The Air Con Guy, Alloa