Book a Car Diagnostic in Clevedon

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for a car diagnostic?

With RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage. They can do a vehicle diagnostic check on your driveway, so you don't even need to leave the house.

When it comes to diagnosing issues with your vehicle, our friendly expert mechanics are here to help. We use state-of-the-art diagnostic equipment to accurately identify any problems, ensuring your vehicle runs smoothly and safely. The price includes the diagnostic service – no hidden costs. Just friendly, honest experts.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick in Clevedon

We’ll come to you at home or work

RAC Mobile Mechanic in Clevedon

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At the RAC, we’ve got over 125 years’ experience in offering complete peace of mind® to our members. We’re best known for our breakdown service. And now – our new RAC Mobile Mechanics are here to help make every day motoring easier. If you need a service or repair, they’ll come to you at your home or work.

Close up of an RAC Mobile Mechanic running a vehicle diagnostic check

Book a car diagnostic

Our mobile mechanics will spend up to 30 minutes checking your car for faults and talk you through any repairs you might need and give you a report for your records. There are various ways we can check for faults, which could include plugging in to check your car’s onboard engine management system.

OEM quality parts

We use original equipment manufacturer (OEM) standard parts, which means every new part will be the same standard and same quality as the original part it replaced.

Mechanics you can trust

Our mobile mechanics are friendly, honest, and backed by the RAC.

Book a repair

It’s easy to book a car repair online. We bring the garage to you with RAC Mobile Mechanics, or find a trusted local garage. Common repair jobs include:

Clutch Replacement

We diagnose and repair clutch issues – whether your clutch is heavy or slipping, or you’re having trouble changing gears.

Alternator repair

We check and correct alternator faults to keep your charging system running smoothly.

Oil change

Oil is vital to a healthy engine, so it’s important to change it regularly.

Brake pads & Discs

If your brakes are making noise or you’re noticing reduced stopping power, it’s likely time to replace your brake pads or discs.

Average cost of a vehicle diagnostic by car make^

The RAC charges a flat rate for the cost of a car diagnostic but prices may change due to inflation. According to RAC data, the average cost of a car diagnostic is £87.

Make	Average price
Ford	£105
Vauxhall	£105
Volkswagen	£105
Peugeot	£104
Mercedes-Benz	£104
Nissan	£106
BMW	£107
Audi	£106
Renault	£104
Citroen	£104

^Average price quoted for RAC Mobile Mechanics from 01/01/25 to 31/03/25.

And it’s not just car diagnostics that we do in Clevedon

Mobile mechanics bring the garage to you, saving you the hassle of getting your car to a garage. If you need a service or repair, they’ll come to you at your home or work.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

View all garages

Autolink Vehicle Solutions

We are a local, family owned business specialising in quality used car sales, we believe we offer industry leading levels of customer service. All vehicles sold undergo a pre-sales check and have a comprehensive warranty available along with a full HPI check to provide you and us with total peace of mind. Established in 2004 by our Managing Director, Autolink Vehicle Solutions is a locally owned and run family business with ten employees. Our Director has been in the motor trade for 35 years and believes that the customer experience is one of the most important cornerstones to running a successful business. We all know that used cars can be problematic, which why here at Autolink we pride ourselves on providing a great customer service and in the event of a vehicle issue we will do all we can to help. From our Factory trained technicians through to our free courtesy cars we will endeavor to keep you motoring. Before any of our retail cars leave the premises we ensure they have received a thorough multi-point inspection combined with a checklist service.

120 High Street, Portishead, BS20 6PR

Fleet Autocentre LTD

We are a family run Autocentre with a warm and friendly welcome. Our customers can expect a personalised service and a commitment to quality. We have an excellent team of experienced of technicians with many years of expertise in the motor industry. We have a reputation for being reliable and trustworthy within our industry.

Unit 1A Oldmixon Crescent, Weston-Super-Mare, BS249AY

Roy Hart Motors Limited

Established in 1968 Roy Hart Motors Limited has always been a family-run garage which prides itself on a high standard of work, friendly customer service and approachable expert advice. We are an RAC-approved garage and are audited every year to ensure our standards remain in line with RAC standards. If you would like to book an appointment for your vehicle, please do not hesitate to get in touch with us on

Winterstoke Road, Weston Super Mare, BS233YS

S F Tebby & Son - Avonmouth.

Established in 1971, SF Tebby & Son has been providing car servicing, repairs and MOT testing to a loyal base of customers in Bristol and the surrounding area. With our vast experience in the motor industry our skilled team are equipped to deal with all your needs including car servicing, extensive repairs and used car sales. Whether you need your car servicing, an MOT test or a car repair, SF Tebby & Son offer a range of services to meet your needs. We promise high quality workmanship, value for money and great customer service.

Unit 11, Avon Gorge Industrial Estate, Portview Road, Avonmouth, BS119LQ

T.D Garage Services

At TD Garage Services Ltd, we take care of all car makes and models. Whether you have a Ford, a Fiat, a Honda or a Hyundai, you can trust us to do a quality job. We are well known as a reliable local garage that provides a range of services including car repairs, servicing as well as MOT testing.

Unit 20, Windmill Farm Business Centre, Bristol, BS34DB

Frequently asked questions on car diagnostics

How much does it cost to diagnose a car problem?

The cost you pay can vary depending on the type of car and how complicated the diagnostic test. Check with your mechanic for a quote.

Is a car diagnostic test worth it?

Yes, a diagnostic test may save you a lot of money. It finds issues early before they become costly repairs. It can also keep your vehicle running efficiently and safely.

Can I do a car diagnostic myself?

While you can buy a diagnostic tool, interpreting the results needs expertise. It’s best if you to have a professional mechanic perform the test.

How long does a car diagnostic test take?

Diagnostic tests take from 30 minutes to a few hours. This depends on what issues are being looked at.

What are common car diagnostic codes?

Common diagnostic trouble codes include:

P0300: Random/Multiple Cylinder Misfire Detected
P0420: Catalyst System Efficiency Below Threshold
P0171: System Too Lean (Bank 1)

These are general examples, so your car may have different codes. Always check with a mechanic so you get an accurate diagnosis.

Is a car diagnostic test necessary for a service?

Yes, they are. Regular diagnostics can help keep your car in good health. It makes sure that underlying issues are addressed quickly, so you can drive with peace of mind on the road.

Again, keep in mind that mechanics might have their own checklists. Chat with your mechanic to be sure that they address any specific issues you have.