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.

RAC Mobile Mechanics can carry out car diagnostics on popular Mitsubishi models such as Outlander, ASX, Eclipse Cross, L200, and Shogun Sport. This service is completed at your home or workplace, following Mitsubishi maintenance guidance and using OEM‑equivalent parts. You get clear pricing, real‑time updates and a convenient, no‑hassle experience.

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

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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.

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

Moorhouse Garage Ltd

5.0/5

Hi, Here we have a higher duty of care as our technicians are main dealer trained including BMW and Mini, VAG Group (Volkswagen, Audi, Seat, Skoda and Bentley) and the FCA Family (Fiat, Chrysler, Jeep and Alfa Romeo) We also have main dealer level diagnostic tools for the above brands and extremely confident we can fix your vehicle for you. **Here at Moorhouse Garage we Are Able To Carry Out All Your Motoring Needs from a simple service to the depths of building a forged engine for you as we're a tuning and remapping centre too**. We Also Specialise in Dpf Cleaning Family Run Business for over 25 Years We hope that this is of interest and we would be very happy to answer any questions you have. We look forward to hearing from you. Kindest regards, Moorhouse Garage

Unit J, Moorhouse Park, Westerham, TN162ET

Sure Vehicle Centre

4.8/5

Car Repairs & MOT Testing in Sunderland: Sure Vehicle Centre is a trusted automotive repair shop and car garage. We provide expert MOT testing, car servicing, vehicle repairs, tyres and MOT in Sunderland. Whether you need a routine service, a full MOT check, or reliable car repairs, our experienced mechanics ensure your vehicle stays roadworthy and safe. Visit us in Sunderland for top-quality automotive services at competitive prices. We provide a full range of garage services, including repairs, tyres, brakes, and clutches. Our MOT testing and servicing packages are trusted for their reliability and thoroughness. With skilled technicians and the latest equipment, we ensure your car stays in top condition and ready for the road.

Sure Vehicle Centre, Pallion New Road, Sunderland, SR46UA

ZS Motors London Ltd

5.0/5

At ZS Motors London Ltd, we pride ourselves on delivering trusted, high-quality automotive services across Rainham (Essex) and east London. With years of experience in the motor trade, we specialise in MOT, engine rebuilds, servicing, diagnostics, and repairs for a wide range of makes and models. Our mission is simple to provide honest advice, reliable workmanship, and excellent customer service. Whether you’re buying your next car, maintaining your current one, or in need of emergency repairs, our expert team ensures your vehicle is always in safe hands. Based in Rainham (Essex) East London, we have built our reputation on transparency, integrity, and a commitment to keeping our customers on the road with confidence.

Unit 3 And 4 Blackwater Close, Fairview Industrial Park, Rainham, RM138UA

RPM Motor Services Limited

4.6/5

£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

Edward Street Garage Crewe Limited

4.4/5

We are specialist diagnosticians — we take on the vehicle problems most garages won’t. Using the latest technology and dealer-level technical information, we can find faults just like the dealers do, giving you clear answers and solutions before any work is agreed. As an RAC Approved Service Centre, we work on all makes and models, including EV and hybrid vehicles. From free vehicle health checks and diagnostics to MOTs, servicing, brakes, cambelts, electrics and general repairs, we handle it all with experience and transparency. We can also manage your warranty for you with any warranty provider, taking the hassle out of claims. We only use genuine OEM parts on new car servicing to help keep your manufacturer warranty valid. For heavy vehicles and Class 7 MOTs, our Ignition Autos Ltd branch in Middlewich is equipped to take on your inspections too. We offer service plans, interest-free payment options, and a transparent approach: honest advice, clear pricing, no hidden costs, and you’re kept in the loop every step of the way. Drop into your friendly local garage in Crewe or Middlewich — we’ll take care of you.

Edward Street Garage (Crewe) Limited, Edward Street, Crewe, CW26HQ

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.