Book a Car Diagnostic in Sevenoaks

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 Sevenoaks

We’ll come to you at home or work

RAC Mobile Mechanic in Sevenoaks

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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 Sevenoaks

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

Moorhouse Garage Ltd

Hi, Here we have a higher duty of care as our technicians are main dealer trained including BMW and Mini, VAG Group (Volkswagen, Audi, Seat, Skoda and Bentley) and the FCA Family (Fiat, Chrysler, Jeep and Alfa Romeo) We also have main dealer level diagnostic tools for the above brands and extremely confident we can fix your vehicle for you. **Here at Moorhouse Garage we Are Able To Carry Out All Your Motoring Needs from a simple service to the depths of building a forged engine for you as we're a tuning and remapping centre too**. We Also Specialise in Dpf Cleaning Family Run Business for over 25 Years We hope that this is of interest and we would be very happy to answer any questions you have. We look forward to hearing from you. Kindest regards, Moorhouse Garage

Unit J, Moorhouse Park, Westerham, TN162ET

Nev'll Fix It Ltd

A FAMILY RUN BUSINESS ESTABLISHED SINCE 1985 Independent Specialists in Vauxhall, BMW, Mini, Mercedes Benz, Ford, Audi, Volkswagen, Skoda, Seat, Land rover, Hybrids and Electric Vehicles. Diagnostics, Electrical Fault Finding Tonbridge’s Genuine Alternative to the Main Dealer Large Enough to cope small enough to care. FEMALE FRIENDLY * AA CERTIFIED * RAC APPROVED

12A Sovereign Way, Tonbridge, TN9 1RS

Aston Garages

At Aston Garages our success is built upon our ability to deliver excellent service for our customers, every single time.A winning combination of professional and friendly service, combined with expert and honest advice, meansour customers return to us time and time again.Whether you are an individual customer, local business or fleet user we use the most up-to-date diagnostic equipment and highly skilled technicians to get your car up and running again with the minimum of inconvenience.

6-8 Gladstone Road, Farnborough Village, Orpington, BR6 7EA

Farrins.

Farrins is a family run business first established over 57 years ago. The original garage was situated in Charlton, London. In Charlton Farrins developed a trusted service record and high level of customer service. In 1996 the business moved to Longfield in Kent and has been servicing the needs of the surrounding towns and villages ever since. Farrins now employs 10 members of staff and has always maintained a fast and reliable service.

61, Main Road, Longfield, DA37QT

Homesdale Motor Traders

Homesdale Motor Traders is a popular and respected garage situated just outside London in Bromley, Kent. Started in 1935 by Mr Fred Craker, Homesdale Motor Traders is still run by his family to date. We are an RAC approved garage and are also members of both the Trust My Garage scheme and the RMI both of which require us to adhere to a strict code of conduct that ensures you, our customer always receives the very best service and advice. We have full body shop facilities and a full range of the latest diagnostic tools and equipment. We also offer a collection and delivery service for those in a 2-mile radius as well as free customer WIFI and 12-months standard warranty on all Labour and Parts we provide. All our technicians and engineers are friendly and fully qualified, you are in safe hands with Homesdale Motors.

Old Homesdale Road, Bromley, BR29LJ

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.