Car Diagnostics | Book a Car Diagnostic for your Kia| RAC

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for a car diagnostic?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running.

Plus, with RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage when you need a repair. We’ll come to you, at your home or work.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick for your Kia

Our top pick

RAC Mobile Mechanic for your Kia

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. 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 Kia

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.

Try one of our RAC Approved Garages

View all garages

Prestige German Cars - Independent German Car Specialist

4.2/5

BMW | Mercedes Benz | MINI | Volkswagen | Audi | Skoda | SEAT | Smart Welcome to Prestige German Cars, established in 2003 and located in the North East of England. Boasting a purpose built 8 bay workshop, we offer everything a main dealer can at reduced prices. It is a point of pride for us to have the latest BMW & VAG dealer diagnostics and more, plus the equipment required to carry out everything your vehicle requires, ensuring we are up to date with all the latest techniques and know-how. Of course other makes and models can be catered for too!!

11, Shaftesbury Ave, South Shields, NE349PH

Auto Motor Solutions

4.6/5

We are a Independant garage what pride ourselves on the high standards of our work and customer satisfaction. We are RAC approved garage and a SHELL oil stockist. We always use quality parts and provide free no obligation quotes. We also offer 4 Monthly Finance Payment Plan at 0% interest. All work is considered and can be quoted for from standard services to engine rebuilds.

33 Wiltshire Road, Hull, HU46PA

A1 Tyres and Exhausts

5.0/5

With over 30 years experience of automotive repairs in Coventry, A1 Tyres and Exhausts is a name that you can rely on to deliver a professional, high quality, and reliable service, that will meet all of your car needs. And above all, we are a name you can trust again and again.

Unit 12-13, Relton Mews, Coventry, CV65HE

JOHN HARRISON LOWDHAM LIMITED, Bosch Car Service

4.7/5

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

Jh Automotive

5.0/5

Jh Automotive is based in Chertsey. We do all range of vehicle makes but specialise in BMW & VAG. We have years of experience within our team and ensure to deliver the experience of hassle free maintenance and repairs, this could be helped with the option to wait while we carry out the work or us coming to collect the vehicle and drop it back! We look forward to hearing from you.

Unit 2 Green Acres Farm, Chertsey, KT160AD

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.