Book a Car Diagnostic in Swindon

£159.86

Average price for this repair in Swindon in the last 30 days^

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 Swindon

We’ll come to you at home or work

RAC Mobile Mechanic in Swindon

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.

A customer tending to her garage with an RAC Mobile Mechanic in the background

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.

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

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 Swindon

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

RS Workshop Ltd

5.0/5

Welcome to RS Workshop, where automotive excellence meets unmatched service! Our garage is your one-stop destination for all your vehicle needs, providing top-notch workshop services that cater to every make and model. At RS Workshop, we pride ourselves on offering a complete suite of automotive services to keep your vehicle running at its best. Diagnosis - Repairs - Servicing - Diagnostics - Coding - Clutches - Cambelts - Brakes - Electrics - Air Con - Performance Upgrades

Braydon Fields Farm Cottage, Swindon, SN50AG

A.T. Automotive Ltd

5.0/5

Who We Are: Based in Lyford in South Oxfordshire, the team at A.T Automotive Ltd have many years of experience in repairing vehicles, from major accident damage to complex mechanical repairs. We pride ourselves in a quality job, from outstanding customer service to sound repairs you can rely on. Over the past few years, A.T. Automotive has gone from strength to strength; having not only recently moved to brand new premises, the team is expanding rapidly to allow us to cover every aspect of vehicle repair of the highest quality, experience and workmanship. Not only do our technicians have years of experience and knowledge, at A.T. Automotive we pride ourselves in supporting the next generation; with apprentices in both the workshop and the office gaining skills and qualifications for their future.

Unit 9, Lyford Business Centre, Wantage, OX120EE

Tetbury Motor Centre GL8

5.0/5

If a job's worth doing, it's worth doing properly" Welcome to Tetbury Motor Centre, your leading main dealer alternative. Run as a friendly family garage, we were established in the 1980's with an extensive range of knowledge covering all vehicles. We pride ourselves in being high quality, hassle free and most importantly being trustworthy. Although we are specialist in Subaru, Isuzu and Tata, we service all makes of vehicle to the highest standard using your manufacturers service guidlines, thus keeping your warranty protected and "peace of mind satisfaction". We are also a full MOT testing station, air conditioning service centre, and a tyre fitment dealer, using the latest full diagnostics computer software and equipment.

Unit 6 Tetbury Industrial Estate, Cirencester Road, Tetbury, GL88EZ

D&A Autos

5.0/5

D&A Autos of Witney offer an independent personal service backed up by over 40 years experience. Although we are well known as Volvo specialists within the Oxford/Witney area, we also deal with all other makes of cars. Offering a full service from MOT/Repairs to selling carefully selected used cars. Our staff are hand picked and are also fully skilled. We feel we can offer you a service that is not only personal but highly skillful and professional. We have a good modern workshop with 4 bays fitted out by ourselves, and have daily deliveries from most franchises to cater for all makes. We also carry out diagnostic work and specialist work for other garages in the Witney/Oxford area and welcome trade enquiries.

154 Newland Industrial Estate, Witney, OX28 3JH

Car Care Tetbury

4.4/5

Established in 1974, we are Tetbury's premier independent garage offering a dedicated and experienced team of seven mechanics. As a small, family run business we provide a professional yet personal service and a familiar face to all of our returning customers. We have been voted Independent Garage of the Year 2012 by both Motor Trader and the Motor Industry Code of Practice! We offer a full range of services for all makes of cars, four wheel drives and light commercial vehicles. At Car Care Tetbury customer satisfaction is our top priority so please contact us today at whocanfixmycar.com.

Car Care (Tetbury) Ltd, Units 1-3, Priory Industrial Estate, London Road, Tetbury, GL8 8HZ

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.