Car Diagnostics | Book a Car Diagnostic for your Audi

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 Audi

We’ll come to you at home or work

RAC Mobile Mechanic for your Audi

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 Audi

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

Car M.D. (Mossley) LTD

4.8/5

Car M.D. (Mossley) LTD in Mossley.

Car M.D (Mossley) Ltd, Mossley, OL59BG

Auto Care Centre

4.7/5

We are an established local independent garage and are proud to be members of Autofirst Network – a nationwide network of independent garages operating to the Network’s 6 core values of Capability, Consistency, Care, Clarity, Cost Effectiveness and Customer Focus. For your added peace of mind we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute.In short, we are a local garage you can trust offering you the support and service guarantees of a national network, giving you complete peace of mind. We cover the postcode areas and also offer courtesy cars and a free collection and delivery service.

88 Maidenhead Road, Windsor, SL45EL

Car Care Tetbury

4.4/5

Established in 1974, we are Tetbury's premier independent garage offering a dedicated and experienced team of seven mechanics. As a small, family run business we provide a professional yet personal service and a familiar face to all of our returning customers. We have been voted Independent Garage of the Year 2012 by both Motor Trader and the Motor Industry Code of Practice! We offer a full range of services for all makes of cars, four wheel drives and light commercial vehicles. At Car Care Tetbury customer satisfaction is our top priority so please contact us today at whocanfixmycar.com.

Car Care (Tetbury) Ltd, Units 1-3, Priory Industrial Estate, London Road, Tetbury, GL8 8HZ

Priory Service Station

4.0/5

Priory Service Station Family run business, been going for over 40 years. friendly staff, we cater for cars vans and motorhomes, MOTs repairs and services as well as diagnostics pleasant waiting area with refreshment services.

Priory Service Station, 164 Priory Road, Hall Green, Birmingham, B28 0TB

RPM Motor Services Limited

4.5/5

£5 plus vat collection and delievery within 10 miles. Free loan cars subject to insurance cover Mot test centre on site. Bosch trained technician Car sales Air con Tyres Exhausts Brakes Batteries.

Unit 1, Harbour Road, Seaton, EX124AA

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.