Car Diagnostics | Book a Car Diagnostic for your Jaguar

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 Jaguar

We’ll come to you at home or work

RAC Mobile Mechanic for your Jaguar

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.

A customer tending to her garage with an RAC Mobile Mechanic in the background

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 Jaguar

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

Swanmore Car Repair Centre

4.8/5

Swanmore Car Repair Centre is an independent repair garage established in 2008. We offer a wide range of services and commend ourselves by providing the best quality and efficiency on every single job we undertake. Our clean, modern and well-equipt premises allow us to welcome any repair and rectify it. We cover anything from a simple service, right through to a full engine rebuild. On-site we have a vast range of different diagnostics equipment from a range of leading suppliers. We can facilitate diagnostics to complete vehicle reprogramming depending on individual need. We can accommodate all vehicle make's and models and are happy to be able to provide you with a reputable dealer level of service, all for the price of an independent garage. Our team specialise in Clutch, Cambelt and Brake repairs and are proud to be rated a national top performer. We are members of the approved garage network This ensures you have peace of mind and confidence when repairing with us. All of our team here at Swanmore Car Repair Centre are fully qualified and trained to the highest standard. We strive in making sure we deliver professional work with results, always put the customer's needs first. Customer satisfaction is essential on each and every job, no matter how big or small. We are very pleased to be able to provide both a collection and delivery service within 10 miles, or a courtesy car subject to availability. Of course, however, you may just prefer to wait in our comfortable waiting room, with free Wi-Fi and refreshments on offer.

Unit 7 Swanmore Business Centre, Lower Chase Road, Swanmore, Southampton, SO32 2PB

SH Diesel Repair Centre UK LTD

5.0/5

we are a Independent Injector & Turbo Specialist , Common Rail Injector Testing + Reconditioning & New available All Mechanical work undertaken from Services, Brakes, Exhaust, Suspension to Major engine work and Engine Rebuilds. Diagnostics Tyres At SH Diesel We are all professional, highly trained mechanics

66 Arthur Street, Lake Side, Reddich, B988JY

Heath Mill Garage

5.0/5

A real alternative to the Main Dealers offering Servicing, Tyres, Exhausts, 4 Wheel Alignment, Air Con and much more. Conveniently located on Heath Mill Road, Wombourne, close to Sainsbury's we offer a full range of facilities with a reception and waiting room, we also have courtesy cars available. We use top quality parts such as Brembo Braking and Shell Oils to ensure your vehicle is running at it's best. We also update Electronic Service Records for modern vehicles without a service book.

Heath Mill Road, Wombourne, Wolverhampton, WV58AP

Diplock Fuel Injection Services Ltd

5.0/5

We at Diplock Fuel Injection Services Ltd are a professional and friendly company based in Hailsham. Established since 1985, with individuals having over 50 years experience our car mechanics offer an array of car maintenance services. We specialise in diesel fuel injection and MOT testing, and can offer a comprehensive selection of repair work. We have built up a highly sought-after reputation and we come highly recommended by people in the trade. We also pride ourselves on offering very good rates on MOT tests; so please contact us for an unbeatable price!

Unit 3/4 Avocet Way, Diplocks Way, Hailsham, BN27 3JF

Promotive BMW MINI

4.0/5

Promotive is one of the largest independent BMW and MINI specialists in the country. Our technicians are both BMW specialists & MINI specialists trained 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. We work to a code of practice. 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. Promotive is run by John O’Sullivan who has 30 years BMW knowledge and training.

66 Tregwilym Road, Rogerstone, Newport, NP109EJ

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.