Book a Car Diagnostic in Taunton

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 Taunton

We’ll come to you at home or work

RAC Mobile Mechanic in Taunton

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 Taunton

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

T&N Autos ltd

5.0/5

Family run garage based in Priorswood area, Taunton, Somerset. Professional car repairs, service, brakes, tyres, clutches, gearboxes, steerings and engine replacement service. Our labour hour rate starts at £64.80 plus VAT. We have a reception area where you can wait, when not very busy we can have a chat and a hot/cold drink. In some cases we can arrange for your car to be collected/dropped off for a fee. Easy to be found on Priorswood Road, next to Pearsons Hydraulics.

Unit 2, Enterprise Park, Priorswood Road, Taunton, TA28FR

Audi 4 U LTD

5.0/5

Audi 4 U LTD

Unit 18 Axe Road, Colley Lane Industrial Estate, Bridgwater, TA65LJ

Causeway 4x4

5.0/5

We are a garage located in Dunball, Nr Bridgwater in Somerset just off Junction 23 of the M5 motorway. As Independent Landrover Specialists we specialise in 4×4 vehicle repairs, service, MOTs and spare parts. If you are looking for Land Rover or other vehicle service then look no further! Since re establishing in 2009 we now also offer service work, repairs and MOT’s to all vehicles, not just 4×4’s. We look forward to hearing from you!

Bristol Road, Dunball, Bridgwater, TA64TN

Bartlett Park Garage Ltd

5.0/5

Bartlett Park Garage Ltd is a family run MOT and general repairs garage. The garage offers a huge range of services which makes it the leading 'one stop' workshop and car service centre in the area. Bartlett Park Garage was started by the managing director Adrian Gould in the late 80's and through hard work and securing an excellent local reputation the business has grown in size and strength. The garage now operates from a purpose built workshop on Thorndun Park Drive and boasts two MOT lanes, 5 qualified MOT testers, a reception with viewing/waiting area, a tyre bay, eight lift ramps, an engine crane and a diagnostics bay. Bartlett Park Garage Ltd offers MOTs (while you wait, if required), Servicing, Air-con servicing and repairs, Engine diagnostics, Injector removal/extraction, Electrical repairs, Tyres, Puncture repairs, Exhausts, Clutches, Coolant systems, Fan belts, Timing/CAM belts & chains, DPF Cleaning, Welding repairs, Tracking & wheel alignment and all general repairs. No job is too big or too small! Bartlett Park Garage also has an award winning apprenticeship scheme and has worked with various local schools and colleges. The garage has gone on to offer full time employment to many of the apprentices it has trained. The garage is proud to be 'RAC Approved' and a 'AutoCare Service Centre', winning awards and receiving a huge amount of positive feedback from our customers..

Bartlett Park Garage Ltd, Thorndun Park Drive, Chard, TA20 1FF

K & R Auto Services

4.0/5

K and R Auto Services Ltd, located in Tauton, is an independent garage that has been servicing and repairing all makes of car and light commercials since 1985 using factory trained technicians with state of the art tooling; this allows K and R to offer fleet companies and private individuals a one stop shop centred around excellent service with affordable pricing. During 2009 K & R relocated to their new site having outgrown the original premises (all be it a stones throw away), enabling them to expand their services into new and used car sales, bodyshop smart repairs, paint-less dent removal, interior trim repair on velour, leather, plastics, and fabric as well as a valet department and a bespoke parts department to name but a few. The new fully automated M.O.T bay and service centre has been designed to cater for all manufactures cars and light commercials all are serviced to the manufacturers standards; some of our partners include major fleet companies such as Wessex Water, British Gas, the Highways Agency and the One link platform. All these groups recognise the need for quality repairs, reduced vehicle down time with guaranteed workmanship at a reasonable cost (cheapest is not always the best). K and R have won the coveted Fleet Garage of the year several times; a credit to their staff and all concerned.

Cook Way, Bindon Road, Taunton, TA2 6BJ

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.