Book a Car Diagnostic in Carlisle

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 in Carlisle

We’ll come to you at home or work

RAC Mobile Mechanic in Carlisle

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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.

Average cost of a vehicle diagnostic by car make^

The RAC charges a flat rate for the cost of a car diagnostic but prices may change due to inflation. According to RAC data, the average cost of a car diagnostic is £87.

Make	Average price
Ford	£105
Vauxhall	£105
Volkswagen	£105
Peugeot	£104
Mercedes-Benz	£104
Nissan	£106
BMW	£107
Audi	£106
Renault	£104
Citroen	£104

^Average price quoted for RAC Mobile Mechanics from 01/01/25 to 31/03/25.

And it’s not just car diagnostics that we do in Carlisle

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

Lakeland Car Centre.

Lakeland Car Centre was founded in 1990 from a small repair centre on the outskirts of Kendal. In 2000 the operation was transferred to a purpose build site on Mintsfeet Industrial Estate Kendal. Today we specialise in the Sale and Repair of every make and model of vehicle new or used, service mot tyres exhausts diagnostics with all the very latest equipment providing a service second to none.

Mintsfeet, Road, Kendal, LA96DE

Bennett Auto Services - Bosch car service

At our family-run garage in Durham, we pride ourselves on offering top-quality car servicing, MOTs, repairs, diagnostic checks, timing belts/chains, clutch replacements and much more. We are a certified Bosch Service Centre- our team provides you with a customer-focused service that’s second to none. Whether you need a simple oil change or more complex repairs. We are the garage for you!

Unit 3A, Langley Park Industrial Estate North, Langley Park, Durham, DH76TX

Diamond Motors

We do diagnostic also programing service repair brakes timing belts specialize in dpf egr antipolution problems we also do remapping supply and fit tyres

Unit 22 Creative Par, Durham, DH79TT

Auto Repair Centre

MOT and Service From -ú90 Servicing - MOT Testing Brakes andClutch Services Exhausts, Fault Finding Batteries- Tyres- Exhausts Car Breakdown Recovery

Unit 6, Mill Lane, Newcastle Upon Tyne, NE4 6QA

GC Autos LTD

We are a family run garage located in Gateshead, on Saltmeadows Road. Established in 2009, we have a wealth of knowledge in all makes and models but also specialise in Mitsubishi. With over 40 years of combined experience within all aspects of the motor industry, you will receive the best customer care and honest, professional advice. Our well-equipped workshop also allows us to offer repairs and services on light commercial vehicles and fleet vehicles. The garage itself is conveniently located near the metro station and is also near local bus stops, however, we also offer a free collection and delivery service for those customers within a 5-mile radius. All our parts are sourced from a reputable supplier and come with a standard manufacturer warranty, giving you peace of mind. We have a comfortable customer waiting area where you can enjoy some refreshments while you wait for your vehicle.

Unit 13, Saltmeadows Road, Gateshead, NE83AH

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.