Book a Car Diagnostic in Stafford

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 Stafford

We’ll come to you at home or work

RAC Mobile Mechanic in Stafford

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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 Stafford

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

Weston Auto Centre

We are a family run garage, we put our customers first. Check out our reviews on the best of cannock and our facebook page

Unit 6 Bennick Industrial Estate, Broad Street, Bridgtown, WS11 0DA

Liontech 1996 limited

Mot test centre service and repairs diagnostics

Unit Mb2, Hves Industrial Estate, Primrose Avenue, Wolverhampton, WV10 8AW

Brownshore Motors.

Brownshore Motors was originally established in 1968 by Jack Clutton and was taken over in the late 1970’s by Warren Clutton who is still running the family business to this very day. Our mechanics and technicians have a wealth of knowledge in working on motor vehicles and we have been servicing the Willenhall area for the past 50 years. We run a clean welcoming garage and ensure that with all work we undertake we are fair and honest in our pricing and will always give you the final price you will pay before any work is undertaken so you will never be stung with unexpected costs. As being a Member of motorcode and an RAC approved garage. We also offer a collection and delivery service for those within 5 miles of us and can provide you with courtesy car (depending on availability).

Unit E2, Ezekel Lane Short Heath, Willenhall, WV125QU

TGS Automotive Limited

TGS Automotive is a certified Bosch Car Service Centre and fully RAC & AA Approved Garage offering MOTs 7 days a week, late-night MOT testing, EV/Hybrid diagnostics, Smart Repair, accident repair and fleet maintenance. Our technicians are IMI Level 3 and Level 4 accredited, with Tesla-compatible skills for EV repairs.

Gas Works, Dividy Road, Stoke-On-Trent, ST20AH

Madeley Heath Motors - Newcastle-Under-Lyme

We are a Renault and Dacia main dealer with the knowledge, specific tooling and diagnostic equipment to efficiently repair and maintain all Renault and Dacia vehicles. Competitive service and MOT prices are only but a few of the surprises we can offer you. If you live within 10 miles of our dealership, we are able to provide you with our collect and deliver service. If you have somewhere to be whilst your vehicle is being repaired, we offer a courtesy car service. With every job; we complete a free vehicle health check to provide total peace of mind. In addition, all Renault approved parts come with a one year guarantee!

Keele Road, Keele, Newcastle-Under-Lyme, ST5 5AL

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.