A customer in the garden with an RAC Mobile Mechanic in the background.A close-up of a customer tending to her garden with an RAC Mobile Mechanic in the background.
Service, Repairs & MOT

Car diagnostic for your Renault

Book an RAC Mobile Mechanic to diagnose the problem at home and get £50 off repairs over £150

  • State of the art equipment
  • No hidden costs
  • Mechanics you can trust

T&Cs apply. Offer ends 03/08, 23:59.

£139.18

Average price for this repair for your Renault in the last 30 days^

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 for your Renault

We’ll come to you at home or work

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. Plus, when we’ve diagnosed the problem get £50 off mobile mechanic repairs over £150 – for a limited time only. T&Cs apply. Offer ends 03/08, 23:59. 

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.
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:

We diagnose and repair clutch issues – whether your clutch is heavy or slipping, or you’re having trouble changing gears.
We check and correct alternator faults to keep your charging system running smoothly.
Oil is vital to a healthy engine, so it’s important to change it regularly.
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.

A close up of an RAC mobile mechanic looking under the hood of a car

Try one of our RAC Approved Garages

Cavanfields Autocentre.

4.6/5

We have been established for over 18 years now, and are very proud of the excellent reputation that we have built up. We are proud to offer you a first class customer service and very competitive pricing, so please browse our stock list. At Cavanfields Uk Ltd we stock a range of used cars to suit all budgets and lifestyles so we are sure to have the right car for you.
Pennings Road, Tidworth, Salisbury, SP97SU

Robinwood Autos

4.9/5

We are an independent garage who believe in putting the customer first. We have over 25 years experience in the motor trade and have vast knowledge of the industry. We believe in giving the customer all the information and allowing a 'no pressure' decision on what work you as the customer would like to have done. We offer competitive pricing and a friendly approach, you can rest safe in the knowledge you're in good hands. All work is guaranteed for 12 months
Robinwood Autos, Unit 11, Wallingfen Business Park, Newport, HU152RH

BABA BROTHERS

5.0/5

Expert Mechanics Based in London. MOT and Repairs Service. Contact us for your one stop shop for Cars, Vans & Lorries All MOT Classes BABA BROTHERS LTD UNIT 3 COOMBE ROAD LONDON NW10 0EB Contact Email: [email protected] Website: www.bababrothersmot.com
Unit 3, Coombe Road, London, NW100EB

PK Automotive Solutions , Bosch Car Service

4.8/5

We are a specialist Diagnostic and Service centre based in the North of Lincoln offering the widest range of services. We are a Bosch Car Service Centre and Delphi Diesel Agent, not only this but we are approved by many motoring bodies, including the RAC, Trading Standards, Motor Codes, RMI, Trust My Garage, Foxy Lady and we are also an IMI Recognised Employer. Testament to our quality.
Units 2 -4 Deacon Business Park, Deacon Road, Lincoln, LN2 4JB

Polyne Garage.

4.4/5

Here at Polyne Garage we are a small local, independent, family run business and have been serving Saltash, Liskeard and the surrounding area for over 60 years. We offer a genuinely friendly and personal service and as a Unipart Car Care Centre, as well as first class mechanics and workshops, we offer top quality parts at competitive prices. We provide a unique 12 month / 12,000 mile warranty on parts and labour, which is honoured at over 2000 Car Care Centres nationwide. We also understand that dropping off and collecting your vehicle is not always convenient so we offer a collection and delivery service, please feel free to contact us for more information on this. We can estimate all jobs and will advise you in advance if any variation is necessary. Our opening hours are Monday to Friday 8:00AM - 5:00PM. From all of us here at Polyne Garage we look forward to hearing from you.
Trerulefoot, Saltash, Cornwall, PL125DA

Frequently asked questions on car diagnostics

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.

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

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.

Diagnostic tests take from 30 minutes to a few hours. This depends on what issues are being looked at.

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.

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.