Car Diagnostics | Book a Car Diagnostic for your Mitsubishi

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 Mitsubishi

We’ll come to you at home or work

RAC Mobile Mechanic for your Mitsubishi

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. Plus, when we’ve diagnosed the problem get £50 off mobile mechanic repairs over £150 – for a limited time only. ^†T&Cs apply. Offer ends 03/08, 23:59.

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 Mitsubishi

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

CRS Garage & MOT Centre

4.6/5

...We are a family run business with over 30 years experience in the vehicle repair & maintenance industry. Our main focus is our customers & their needs. We also have another garage based in Uphall, Broxburn, West Lothian.

9D Inchmuir Road, Whitehill Industrial Estate, Bathgate, EH482EP

Teltyres Ltd

5.0/5

An Independent family owned business. Established for over 50 years. We specialise in Tyres, exhausts, brakes, batteries, servicing and wheel alignment.

Springhill, Wellington, Telford, TF1 3NA

Polyne Garage.

4.4/5

Here at Polyne Garage we are a small local, independent, family run business and have been serving Saltash, Liskeard and the surrounding area for over 60 years. We offer a genuinely friendly and personal service and as a Unipart Car Care Centre, as well as first class mechanics and workshops, we offer top quality parts at competitive prices. We provide a unique 12 month / 12,000 mile warranty on parts and labour, which is honoured at over 2000 Car Care Centres nationwide. We also understand that dropping off and collecting your vehicle is not always convenient so we offer a collection and delivery service, please feel free to contact us for more information on this. We can estimate all jobs and will advise you in advance if any variation is necessary. Our opening hours are Monday to Friday 8:00AM - 5:00PM. From all of us here at Polyne Garage we look forward to hearing from you.

Trerulefoot, Saltash, Cornwall, PL125DA

S T Garage

4.8/5

We are the best in the area when it comes to professional full DPF cleaning. We can also provide regular maintenance, diagnostics and minor or major repairs.

6, Stonehill, Huntingdon, PE296ED

Brookdene Service Centre

4.8/5

Brookdene Motors has been established for over 25 years, offering general repairs and servicing to Watford and the surrounding areas. We are specialist in VW, Audi, Seat, and Skoda. Reputation and trust are key business tools for any independent garage and at Brookdene motors in New Road, Watford, its part of the firm's philosophy. Reputation is a very important word for the team - which explains why Brookdene Motors is celebrating over 25 years in the industry. We are also now proudly part of Elite Remaps. If you need further endorsement, many of our huge database of loyal customers have been using the garage since its very early days when it was situated in Carpenders Park. Now our location is ideal, situated at the edge of Waterfields Retail Park just behind Tesco and only three minutes walk to The Harlequin and Lower High Street Station. Brookdene Motors offers a full range of services and our busy and highly competent staff are all long-serving, With the senior technician being with the garage for over 24 years. We have invested heavily in the latest diagnostics equipment and the facilities also include an automatic tyre charger and a computerized wheel balancer. All our parts come with a standard manufacturer warranty and our labour is guaranteed for 1 year.

10-12 New Road, Lower High Street, Watford, WD17 2EX

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.