Book a Car Diagnostic in Congleton

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 Congleton

We’ll come to you at home or work

RAC Mobile Mechanic in Congleton

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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 Congleton

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

DMS (David Mills & Sons), Bosch Car Service

We are members of the Bosch Car Service Network which is a national network of independent garages. Our objective is to provide you with a friendly and professional service for all your motoring needs at a fair and affordable price, using Bosch and Original Equipment quality parts. Our garages are fully equipped with modern, innovative diagnostic systems for quick and accurate trouble-shooting. We are audited by, and accredited to the Trading Standards Institute (TSI) to guarantee that we maintain the high standards set by Bosch. You can rely on us for fast, expert and affordable vehicle servicing and repair work. For everything your car needs.

Lawton Services, Knutsford Road, Stoke, ST73DN

Dennis Newton's MOT Centre

Established independent multi-bay MOT and repair garage offering service and MOT testing for cars, light commercials and motorbikes. Waiting room with refreshments, daily papers and magazines. Free WIFI. Customer parking.

Unit 9B Holmes Chapel Business Park, Manor Lane, Holmes Chapel, CW48AF

W T Bell (Burslem) Limited

With a family business trading for over 60 years, we understand what customers really want in regards to service, value, quality, and integrity. Based in the heart of Stoke on Trent we specialize in all vehicle servicing, repairs, and Class 4 & 7 (up to 4.0 tonnes) MOT's. Our workshop is home to all the latest equipment and our highly skilled mechanics also cover all bodywork from respraying to restorations. We offer a free collection and delivery service for customers within 10 miles and also have courtesy cars available. Our friendly team is dedicated to ensuring our customers have a fantastic experience when it comes to their car maintenance. We will always provide you with honest advice and discuss all your options that are available. Our parts come with a standard manufaturer warranty and our labour comes with a 12month/12,000 mile warranty.

Sandbach Road, Burslem, Stoke On Trent, ST62DR

1 STOP MOTORS (CHESHIRE) LTD

We are 1 Stop Motors, based in Macclesfield, a family owned independent garage. We believe in offering a personal and professional service, applying our family values to the daily running of our business. Since we were originally established in 2012, we have worked tirelessly to build up a strong reputation for our expert technical and mechanical knowledge as well as excellence in customer service. We offer a first class, efficient and friendly service and are always willing to go the extra mile. Taking time to discuss your requirements in detail, we pledge to always be upfront about the potential cost to you of any work we do for you to avoid any nasty surprises when you receive your bill. We are AA & RAC Certified. Our technicians are trained on the latest technologies and have the most up-to-date diagnostic equipment to pinpoint any faults in your car as quickly and accurately as possible. Any parts that need to be replaced will be of the same quality as those that were originally fitted on your vehicle. This commitment to customer care gives you peace of mind in knowing that you are going to be given not only the best technical service, but also the best customer service. We are more than happy to offer our customers a FREE collection and delivery service within 10 miles of the garage, to ease transportation issues whilst having your vehicle repaired or serviced.

1 Stop Motors (Cheshire) Ltd, Unit 1, Snape Road, Macclesfield, SK10 2NZ

Autotech Cheshire Ltd

We are a local independant workshop specialising in the sales service and repair of all german marques and 4X4 vehicles inc Landrover/Rangerover.

Unit 14+14A, The Old Brickworks, Bakestonedale Road, Pott Shrigley, SK105RX

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.