Car Diagnostics | Book a Car Diagnostic for your Renault| RAC

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for a car diagnostic?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running.

Plus, with RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage when you need a repair. We’ll come to you, at your home or work.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick for your Renault

Our top pick

RAC Mobile Mechanic for your Renault

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.

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.

And it’s not just car diagnostics that we do for your Renault

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.

Try one of our RAC Approved Garages

View all garages

M S Auto Centre Ltd

5.0/5

M S Auto Centre Ltd is a professional automotive service and repair company based in Birmingham, UK. Specializing in vehicle maintenance, the centre provides comprehensive services including mechanical repairs, tyre fitting, diagnostics, and routine servicing. Catering to a diverse range of vehicles, the company is known for its high-quality workmanship and dedication to customer satisfaction. With a focus on efficiency and reliability, M S Auto Centre Ltd ensures that all vehicles leave the workshop in top condition, keeping customers safe and their vehicles running smoothly.

912 Kingsbury Road, Birmingham, B249PY

Scallons Auto Services Ltd

4.7/5

Scallons Auto Services, is on Water Street, behind the new Tesco Express. At our Garage we aim to give our customers the satisfaction that all work has been carried out professionally, within a reasonable time frame, at a competitive price. We hope that all customers will return and recommend us to their family and friends.

58 Water Street, Thornton, Liverpool, L23 1TB

Acton Service Centre

4.2/5

Acton Service Centre came under new management in 2012. A family run business that prides itself in offering excellent customer service and professional workmanship. Our highly trained engineers and technicians are committed to providing you with the solution to all your motoring needs. Based in Acton just off the A406, our modern reception and viewing area has been newly designed for the comfort of our large base of loyal customers.

17-18 The Broadway, Gunnersbury Lane, Acton, W38HR

Awan Auto Tec

4.7/5

Awan Auto Tec are an independently run garage based in Ardwick, Manchester, which has been established since 2016. We have a team of three very experienced, fully qualified City & Guilds and IMI approved technicians, who are also VOSA approved MOT testers. We carry out class 4 MOT’s in house as well as all forms of mechanical repairs, MOT repairs, maintenance work and servicing. We undertake work on all makes and models of vehicles, with no job being too big or too small. Our standard opening hours are 9-5 Monday to Friday and 9-2 on Saturday. With prior booking, Sunday appointments MAY be available. We also offer our customers a recovery at a reasonable price, with distance being no issue. We pride ourselves on the quality of our work and we use good quality original equipment parts, and we guarantee all of our work. Extra 10 % discount available upon proof of ID for; NHS staff Charity organisations Motor traders Armed forces members

Unit 1 Millgreen Street, Ardwick, Manchester, M126FB

Holme Valley Testing

5.0/5

This is our Holme Valley Testing Station Mot Test Center page. We have listed the full address of Holme Valley Testing Station, phone numbers and websites. Holme Valley Testing Station is in Holmfirth, Holme Valley Testing Station offers cheap mot tests, weekend mot tests and cheap night mot tests in Holmfirth. They also offer mot car servicing and car mot testing in Holmfirth.

Unit 16, Honley Business Centre, New Mill Rd, Holmfirth, HD96QB

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.