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.

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 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

Auto Motor Solutions

4.7/5

We are a Independant garage what pride ourselves on the high standards of our work and customer satisfaction. We are RAC approved garage and a SHELL oil stockist. We always use quality parts and provide free no obligation quotes. We also offer 4 Monthly Finance Payment Plan at 0% interest. All work is considered and can be quoted for from standard services to engine rebuilds.

33 Wiltshire Road, Hull, HU46PA

Triad Of Newport

5.0/5

At Triad our aim is to supply the quality cars at competative prices.All our cars are prepared in our own workshops that carry out servicing, Mot's, Aircon regas,Diagnosis using the latest equipment.Customer satisfaction is our main goal whether you are buying a car or just having a service/MOT. No gimmicks to get you through the door just good old fashioned service." We are a RAC approved workshop and used car sales.

Triad Of Newport, 104 Main Road, Newport, HU15 2RG

Orpington Motorworks

4.9/5

Welcome To The South East's Leading Independent Mechanics & Vehicle Servicing Centre. Mechanics you can trust, next-day service available using the latest manufacturer’s diagnostic Equipment, all whilst saving you up to 40% on main dealer prices. About Our Vehicle Repairs & Servicing Orpington Motorworks offers a full range of Vehicle servicing and repair solutions all including good quality parts. Having an annual service for your vehicle is one of the best ways you can maintain its good condition and avoid some basic issues that if ignored can end up causing costly damage. One of the most important aspects of a service is the oil change. At Orpington Motorworks we use only the best quality parts for your vehicle, so when you come to us for a service or an oil change you know that your vehicle is getting one of the most advanced services. Prices start from £150 for a full service or £75 for a interim service. Please feel free to call us today to discuss a service plan to suite you. To ensure the smooth running of your vehicle it should be serviced once a year. A full service includes a series of maintenance checks including an oil change. Any issues due to wear and tear will also be noted should any further work be required. Fleet Vehicle Servicing Our fleet customers typically save up to 40% on repairs and maintenance. We specialize in all areas of fleet vehicle servicing including repairs, annual servicing, midterm contract inspections and end of lease contract preparation.

Orpington Motorworks, Unit 1, Court Lodge Farm, Warren Road, Chelsfield, Orpington, BR66ER

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

Performance 3000 RAC Yeovil

4.8/5

Performance 3000 are the RAC approved garage for Yeovil and the surrounding areas in Somerset. • We use Bosch KTS (some of the most advanced equipment in the world) as our primary source of diagnostic equipment. • We only fit genuine Bosch or original specification equipment • We work to approved and audited codes of practice • Our Code of Practice is approved by the Trading Standards Institute • Our technicians are comprehensively trained by Bosch • We only ever carry out work with your permission • We provide a quotation before we start any work • We keep your old parts so that you can see that the work was necessary • We use industry approved times when calculating how much labour to charge so that you know the price you pay is fair • Our technicians are comprehensively trained and document every procedure. • We are able to assist with the collection and return of vehicles, wherever possible We offer services which other garages and main dealers are unable to: • Our in-house rolling road enables us to diagnose and test vehicles in our workshop just as if they were driving along a road • We hand-make stainless steel exhaust systems on your car whilst you wait • Our in-house machine shop allows us to fabricate various items on-site

40 Buckland Road, Pen Mill Trading Estate, Yeovil, BA21 5HA

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.