Car Diagnostics | Book a Car Diagnostic for your Jeep

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.

RAC Mobile Mechanics can carry out car diagnostics on popular Jeep models such as Avenger, Renegade, Compass, Wrangler, and Grand Cherokee. This service is completed at your home or workplace, following Jeep maintenance guidance and using OEM‑equivalent parts. You get clear pricing, real‑time updates and a convenient, no‑hassle experience.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick for your Jeep

We’ll come to you at home or work

RAC Mobile Mechanic for your Jeep

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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.

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

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

Autocentric

4.7/5

We know that your vehicle is more than just a mode of transportation; it's an integral part of your daily life. Whether you rely on your car for commuting, running errands, or embarking on epic road trips, you deserve a reliable, safe, and well-maintained vehicle. That's where we come in. With decades of combined experience, our mechanics are seasoned professionals who have seen it all. From routine maintenance to complex repairs, we've got the knowledge and skills to handle it. We never compromise on quality. We use top-of-the-line parts and cutting-edge diagnostics to deliver results that you can trust. Your satisfaction is our priority. We're committed to transparency, fair pricing, and open communication throughout your service experience, including a short complimentary video showing you exactly where the issues are with your vehicle. Just let us know and will include this at no extra cost to you! A few other perks we offer: Collection and Delivery Services including Essex, Kent and surrounding areas Warranty repair - we work with all leading warranty companies - we are VAT registered Payment Options - we work with Payment Assist so that our customers have the flexibility to spread the cost of the repair into smaller monthly payments. If you have any questions, or wish to book your car in please visit us at www.autocentric.co.uk or call us on

Unit C0, Manor Way Business Park, Swanscombe, DA100PP

Kissane and Jeffries (Recovery Services) Ltd

5.0/5

Kissane and Jeffries are a well established rescue and recovery company operating in the West Midlands and have been in the trade for over 30 years with proven ability to carry out a professional and competent service. We are constantly upgrading our fleet of breakdown and recovery vehicles and equipment to keep up with today's demands for the best in the business to ensure we can serve you as quickly as possible when needed. We also have comprehensive vehicle repair facilities available for most makes and models with very competitive pricing structures and a quality of service that will make you want to use us again and again, our technicians are ATA accredited and our workshops are registered to the BSi PAS 80 Standard. Customer satisfaction is our priority and we are focused on delivering a quality service whether it be as a one off job for an individual customer or one of the many jobs we carry out some of our blue chip clients, each and every customer is treated with the same high level of care, this is demonstrated with our commitment to the standards of ISO 9001 and PAS43.

Station Road, Rowley Regis, Warley, B65 0JY

JOHN HARRISON LOWDHAM LIMITED, Bosch Car Service

4.6/5

Welcome to John Harrison (Lowdham) Ltd - we're a family run business having been established at the same location since 1946, later being the first established Peugeot dealership in the country in 1975. We pride ourselves in customer care, with many awards over the years gained through offering the very best in customer service experiences from buying a vehicle in the sales department through to our aftersales. We thrive on repeat business, with industry leading preparation standards alongside our non-pressurised sales environment enjoyed by our customers over the last 70 years. We provide the complete range of new Peugeot's from cars through to vans, alongside a superb range of 70+ multi franchise used vehicles. Our team will take the stress out of buying a new car. All you have to do is choose the one that best suits you. Then, the team will help you select the best finance package, organise the admin and get any maintenance taken care of. If you have any questions along the way, we will be more than happy to help. We also extensive aftersales facilities with 'All Makes' Servicing, MOT's, Four Wheel Alignment and more alongside our in-house bodyshop offering minor repairs through to full body resprays.

Southwell Road, Lowdham, Nottingham, NG147DS

Eastlake Garage

4.7/5

We are a well-established company with two sites in the local area, which have been in operation since 1999. We are AA, RAC and GREEN FLAG certified and are able carry out their breakdown and repair work and warranty work, as well as being Trading Standards approved and members of the Motor Ombudsman adhering to their strict code of conduct at all times. We are also Afilliated with the IMI We can offer our customers a free vehicle collection and delivery service within 10 miles of the garages, and we also offer discounts to NHS and Emergency Service staff members upon valid photographic identification.

Gaens Quarry, Porthcawl Road, South Cornelly , Bridgend, CF334RN

Sds motors ltd

4.8/5

SDS MOTORS is a family company responsible for inspecting and repairing vehicles, diagnosing problems and performing maintenance work on them. Shpetim the mechanic of the company has more than 10 years of experience in this industry with very high problem solving skills, efficient, quick and organized.

21 Rosemary Road, London, SW170AR

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.