Car Diagnostics | Book a Car Diagnostic for your Fiat| 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 Fiat

Our top pick

RAC Mobile Mechanic for your Fiat

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 Fiat

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

Car M.D. (Mossley) LTD

4.8/5

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

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

M & M Garages LTD

4.4/5

M and M Garages Ltd has been established since 1981 and with its present owner for over 16 years. The owner is vastly experienced at working on a huge range of cars and personally oversees the work carried out. M and M Garages Ltd prides its self on being able to offer 'The Complete Garage Service' at realistic prices. The work carried out will be thorough and reliable. We do not carry out unnecessary work on vehicles. You will find the staff, and the owner, friendly and helpful. Many of our customers return year after year and refer others to us. If planned in advance we can often arrange a courtesy car for customers if required. Most major credit and debit cards accepted.

The Old And Skin Warehouse, Snowdon Road, Middlesbrough, TS2 1DB

M S Auto Centre Ltd

5.0/5

M S Auto Centre Ltd is a professional automotive service and repair company based in Birmingham, UK. Specializing in vehicle maintenance, the centre provides comprehensive services including mechanical repairs, tyre fitting, diagnostics, and routine servicing. Catering to a diverse range of vehicles, the company is known for its high-quality workmanship and dedication to customer satisfaction. With a focus on efficiency and reliability, M S Auto Centre Ltd ensures that all vehicles leave the workshop in top condition, keeping customers safe and their vehicles running smoothly.

912 Kingsbury Road, Birmingham, B249PY

CW Vehicle Service Centre

4.6/5

RAC APPROVED GARAGE AA CERTIFIED GARAGE TRUST MY GARAGE MEMBER ROYAL MOTOR INSTITUTE MEMBER VIDEO PRODUCED ON REPAIRS FOR CUSTOMER TO VIEW FREE COLLECTION & DELIVERY SERVICE (WITH IN 7 MILES) WASH & VAC SERVICE PAYMENT ASSIST AVAILABLE

8-12 Riverside Drive, Stechford, Birmingham, B339BF

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

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.