Car Diagnostics | Book a Car Diagnostic in Preston

£36.51

Average price for this repair in Preston in the last 30 days^

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 in Preston

Our top pick

RAC Mobile Mechanic in Preston

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 in Preston

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

Ace Elite Autos LTD

4.5/5

HERE AT ACE ELITE AUTOS LTD, WE TAKE PRIDE IN ALL WORK CARRIED OUT. WITH OUR IN-HOUSE QUALITY CONTROL, WE ENSURE EACH AND EVERY VEHICLE LEAVES TO A SATISFACTORY STANDARD AND ENSURING ALL WORK IS CARRIED OUT WITHIN MANUFACTURERS SPECIFICATIONS. WITH ALMOST 85% OF INBOUND VEHICLES OF GERMAN ORIGIN, YOU CAN BE ASSURED WE HAVE THE BEST KNOWLEDGE, TOOLS, AND DIAGNOSTIC EQUIPMENT TO CARRY OUT YOUR REPAIRS. WITH CUSTOMER SATISFACTION AT THE HEART OF OUR BUSINESS, IF THERE ARE ANY QUESTIONS OR REQUESTS PRIOR TO OR POST-BOOKING, PLEASE DO NOT HESITATE TO CONTACT US. THANK YOU

Patten Street 1, Garage, Preston, PR12HA

Tanpits MOT Ltd

4.0/5

Tanpits Mot Ltd is a Class 4, 5 and 7 MOT specialist in Accrington, Lancashire. We undertake annual MOTs for a wide range of vehicles: cars, motorhomes (all sizes), small vans and vans. Not only do we carry out Mot's but we can also provide your vehicle with its annual service and any repairs you may need including brakes, clutches, gearboxes, engine replacement, head gaskets. We have ample car parking places available, a waiting room and hot or cold refreshments. We believe that a good service is one that is friendly and honest. Please call the garage direct for a quote. We do not take responsibilty for anything quoted through WhoCanFixMyCar.com

2 Tanpits Road, Church, Accrington, BB5 4HD

Carleton Autos Ltd

3.9/5

Here at Carleton Autos Ltd, we can provide a wide range of vehicle services and pride ourselves in excellent customer service, to meet the high standards expected from us.

Unit 21, Beacon Road, Poulton-Le-Fylde, FY6 8JE

Bolton Tyre & Exhaust Ltd (OPEN 7 DAYS)

3.9/5

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

Millward's Autocare Ltd

3.3/5

Millward's Autocare Ltd are a proud garage serving the local community of Ingol, Preston for many years. We have built up a team of very experienced and highly qualified master technicians who are always keen to welcome you and help serve your requirements in a friendly and professional manner. At Millward's, we understand the importance of providing quality garage services which is why we only use the latest available state-of-the-art diagnostic and repair methods for all makes and models of vehicle here in Ingol.

250-253 Tag Lane, Ingol, Preston, PR23TY

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.