Book a Car Diagnostic in Bedford

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 Bedford

We’ll come to you at home or work

RAC Mobile Mechanic in Bedford

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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 Bedford

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

UK Truck And Plant

Our Bedford workshop handles repairs and inspections on all types of vehicles; including HGV's, truck and plants machinery From brake inspections to electrical diagnostics, we offer a full range of services tailored to the unique requirements of Fiat Motorhome and Camper Van Our designated Light Commercials team look after all vehicles under 3.5 tons (Gross Vehicle Weight) both in-house and on-site for repairs and inspections We are able to MOT test HGV's and all rigid vehicles, including trailers and tractor units

Ampthill Rd, Bedford, MK429JJ

Forte Motors

Forte Motors Ltd is an independent, family run, car and commercial vehicle garage and used car dealership. Based in Bedford and servicing Beds, Bucks, Herts and Northants we have over 30 years experience in the motor industry and second hand car trade. Our friendly and affordable services range from MOT and servicing, tyres, brake and exhaust repairs and replacement, as well as bodyshop and diagnostics. Our aim is to provide you with a service that is not only of the up most quality, but one that offers fantastic value for money.

46-48 Stuart Road, Kempston, Bedford, MK428HS

Automotive Services (Eastern) Ltd

Welcome to Automotive Services, we have many years' experience in all aspects of the motor trade. Our team is highly experienced and fully trained to provide a service which is second to none. Our fully equipped workshops cater for the repair and service of cars, vans and light commercial vehicles, any make or model, any age, without affecting your manufacturer's warranty. We can also mechanically service your classic car, moped and scooter, Quad bike and your power tools. As an independent garage service in Bedford, Bedfordshire we can provide tailored maintenance solutions to match your personal, business and fleet requirements. We strive to offer outstanding workmanship and customer service at unbeatable prices, whether you require a bulb, tyre, car servicing and MOTs or a complete engine, we will go that extra mile. We offer a free collection and delivery service from your home or workplace and free courtesy vehicles upon request to make life easier.

35 Brunel Road, Bedford, MK41 9TJ

E-Carparts T/A B S Motors

BS Motors has been serving Sandy and the surrounding area with high quality vehicle servicing and repairs in excess of 40 years. We are proud to be an RAC, Bosch & Trading Standards Approved Garage And Used Car Dealer and score consistently high in our audits carried out By both Bosch and the RAC. We strive to bring you the best possible service at all times. With a dedicated, highly skilled team who attend regular technical training courses at Bosch’s technical training facilities combined with the latest garage equipment including state of the art engine management diagnostic tooling we are well placed to undertake the most complexed diagnostics and repairs. The results speak for themselves, one of the reasons why BS Motors Sandy has thrived since the garage was established in 1983. We usually have a small selection of quality of RAC & Trading Standards Approved used cars available, visit our website: www.bsmotorscarsales.co.uk. Check out our excellent reviews that demonstrate we are passionate about our business and take great pride in all of our services offered. We have a high number of satisfied customers reviews from local regions and also from further away including; Stevenage, Bedford, Baldock, Letchworth, St. Neots and Biggleswade.

Unit 3, 1 Stockton End, Sandy, SG19 1SB

Bleak Hall Motors

Bleak Hall Motors, based near Bleak Hall, Milton Keynes, have a wealth of experience in providing servicing, MOT and repairs to customers throughout Bleak Hall, Milton Keynes and beyond. Our convenient location means we are easily accessible from the main routes through the area.

Chesney Wold, Bleak Hall, Milton Keynes, MK6 1LN

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.