Car Diagnostics | Book a Car Diagnostic for your Toyota

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 Toyota

We’ll come to you at home or work

RAC Mobile Mechanic for your Toyota

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.

A customer tending to her garage with an RAC Mobile Mechanic in the background

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 Toyota

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

MMM Auto UK

5.0/5

We are an independent Vehicle service station situated in Liongate Enterprise Park on Morden Road. Specialist is German and Japanese cars. Along with MOT testing station we also offer servicing, repairs and tyres.

Unit 10 Liongate Entreprise Park, 80 Morden Road, Mitcham, CR44NY

STL Service Centre

4.6/5

If you want your car to be looked after by highly experienced mechanics you can trust then choose the STL Service Centre—Leicester’s leading garage for more than 25 years. Our professional team of friendly mechanics are renowned for the high-quality car maintenance they deliver every time. To find out more about how we can help you, call us now onorOr contact us here. WHY CHOOSE THE STL SERVICE CENTRE? Besides providing outstanding service and expert advice at great prices, the STL Service Centre offers: Car servicing Car repairs Tyre replacement MOTs from £35 CAR MAINTENANCE YOU CAN TRUST For the past five years, the team at STL have been members of the Good Garage Scheme, which requires us to adhere to a strict code of conduct. This helps us to provide superior car maintenance services and gives our customers the peace of mind that they will always receive high quality work from our expert team.

132, Fosse Road South, Leicester, LE30JT

I C Automotive LTD

4.0/5

We are an established local independent garage and are proud to be members of Autofirst Network – a nationwide network of independent garages operating to the Network’s 6 core values of Capability, Consistency, Care, Clarity, Cost Effectiveness and Customer Focus. For your added peace of mind we are members of the Motor Ombudsman service which is approved by The Trading Standards Institute. In short, we are a local garage you can trust offering you the support and service guarantees of a national network, giving you complete peace of mind. We offer an interest free payment plan through Payment Assist which takes the worry out of having to find all the funds to repair your car at the one time and offers you to pay this over 4 equal amounts with the first 1/4 coming out the day you sign up for the repair. Terms and conditions apply. Speak to a member of staff for more details. All free health checks are to be dropped off by 8:30am as this is a free service, We ask you not to be late. Thank You

Unit 1 Glover Street, St Helens, WA103LF

Ayaz MOT Centre

4.6/5

Ayaz MOT Centre is a car and van repair & mot centre offering its clients the best possible service in order to meet their expectations. Not only prompt service will be offered, clients will be able to benefit from a clean, comfortable and welcoming waiting area with complementary hot drinks while they wait for their vehicles. The waiting area compromises of information desk and boards, Mot viewing area, complimentary tea.coffee facilities, customer toilets, social gaming and TV's that show the live workshop while your vehicles are in process along with tv entertainment. Alongside these, we guarantee our work quality, and should the repaired issue reoccur we offer one year labor guarantee and parts guarantee subject to suppliers warranty. Some of the services Ayaz MOT Centre offers are; servicing, new tyres, 3D Wheel alignment, Mot Testing(class 4 and 7), brakes, suspension, AC Gas filling (new and old), exhaust, transmission, steering, carbon cleaning, batteries, number plate fitting and general diagnostics.

48 Alexandra Road, Enfield, EN37EH

Tyre King Autocentres Burton on Trent

4.0/5

Hi and welcome to Tyre King Autocentres! We are a family run business established in 2012 and now have 4 auto centres across the East Midlands. We are your one stop shop for all your motoring needs our services include. MOTS TYRES SERVICING REPAIRS WHEEL ALIGNMENT AIR CON BRAKES BATTERIES EXHAUSTS SUSPENSION DIAGNOSTICS We a a highly reputable business with an excellent google and trust pilot rating, We offer free and impartial advice and offer a friendly family run service where we put the customer first.

1 Derby Road, Burton On Trent, DE141RU

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.