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

Bolton Tyre & Exhaust Ltd (OPEN 7 DAYS)

4.0/5

Bolton Tyre & Exhaust Ltd. Is a reputable vehicle servicing and repair centre based in Bolton, Lancashire. Being an established vehicle service and repair centre we specialise in all aspects of vehicle repairs, incl exhausts shock absorbers, vehicle diagnostics, vehicle air conditioning systems, MOT Testing, and vehicle servicing and repairs to all makes and models of cars and vans. We focus on providing excellent vehicle services to all customers throughout Bolton and the surrounding areas of Bury, Walkden, Leigh, Wigan, Chorley and Blackburn.

Topping Street Off Brownlow Way, Halliwell, Bolton, BL1 3UP

Witney Vehicle Repairs Ltd

4.6/5

Here at Witney Vehicle Repairs we have over 30+ years of experience, pride ourselves on our commitment to give the very best in car repairs, servicing, diagnostics, & customer satisfaction. Our pricing is very competitive with no hidden surprises, We look forward to earning your trust & gaining your custom. And now we are proud to announce we have become an RAC approved garage offering RAC inspections, repairs and other RAC products. Also we are part of the RMI & and trust my garage network, We are now offering a Shell / Forte vehicle service, parts & preventative solutions package please contact us for more information.

Witney Road, Standlake Business Park, Witney, OX297PR

Richardsons Colchester

4.8/5

Established in 1966 we are one of the South East's leading vehicle repair centres. We have a team of highly trained ATA staff and we are a BSI approved repair centre so you can ensure your vehicle is repaired correctly. We carry our vehicle servicing and repairs at very competitive prices but still follow the exact schedule recommended by the manufacturer and your warranty is NOT compromised regardless of the age of the vehicle. We also fit parking sensors, tyres, batteries, in fact we can undertake almost any of your car needs. We have alos recently been certified as a Which Trusted Trader which the company has been audited on our ability to provide customers with a honest service quality and cost standard. See for yourself by visiting www.grahamrichardsons.co.uk

Grange Way, Colchester, CO28HG

New Garage (Harnham)

5.0/5

New Garage (Harnham) ltd was established in 1984 and has been providing quality vehicle repairs and servicing in the Salisbury area for over the past 30 years. Our 4 highly trained and experienced mechanics/technicians have over 90 years of combined experience between them working on motor vehicles. We work with all makes and models and specialise in Electric and hybrid vehicles; the technology for these vehicles has been developing greatly over the last 20 years and we have kept up to date with all the technology, tools and training to be able to repair and service electric/hybrid vehicles of all makes and models. We are an RAC Approved garage and we only use high quality parts and all parts and labour we provide come with a standard 12-month warranty for added peace of mind. If you need your car picked up, a lift home or a courtesy car please let us know and we will do all we can to assist you. We look forward to hearing from you.

28-30 Harnham Trading Estate, Salisbury, SP2 8NW

Ian Bright Motor Engineer

4.7/5

Ian Bright Motor Engineers is a friendly independent garage situated in a beautiful countryside location in Halnaker, Chichester. Established since 2013, our small team are dedicated to delivering you the highest levels of customer service. Our workshop is fully equipped and we cater for all makes and models of vehicles, offering our customers a comprehensive range of repairs, maintenance work, servicing and MOT’s. Owner Ian has over 47 years of experience, having started his 5 year City & Guilds apprenticeship back in the 70’s. City and Guilds qualifications are a lot more intense and labour intensive compared to the more modern qualifications available to mechanics nowadays, and we were taught how to fix and repair parts as opposed to simply replacing them, which is standard practice in most places today. I have experience working with older classic cars, alongside newer more modern ones too, and no job is too big or too small for us to take on! Most of my customers have been with me for years and know that by choosing my company to undertake works on their pride and joy, they will receive fantastic workmanship alongside a personalised service. We would never advise you doing anything to your vehicle which was unnecessary as some garages do purely for profit, priding ourselves on our honest core values. My son, who was trained in-house alongside me, has branched out into classic and vintage race cars and is fast gaining a fantastic reputation for his first-class trimming, and my eldest grandson Lewis is now working with me and is undergoing his apprenticeship too. Three more grandsons are also looking to come on board and keep this garage running with a strong family presence.

Unit 2 The Workshops, Thicket Lane, Halnaker, PO180QS

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.