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 SEAT models such as Ibiza, Arona, Ateca, León, and Tarraco. This service is completed at your home or workplace, following SEAT 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 SEAT

We’ll come to you at home or work

RAC Mobile Mechanic for your SEAT

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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.

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.
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:

We diagnose and repair clutch issues – whether your clutch is heavy or slipping, or you’re having trouble changing gears.
We check and correct alternator faults to keep your charging system running smoothly.
Oil is vital to a healthy engine, so it’s important to change it regularly.
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 SEAT

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

4 Fab Wheels

4.6/5

4 Fab Wheels is a newly formed company based in the heart of Wembley. We own a very large garage which includes a tyre bay, an in-house car wash and valet bay and a bodyshop/accident section complete with a jig and spray paint booths. We also have on-site storage facilities for up to 80 vehicles. Our team of 10 technicians (6 bodywork, 4 mechanical) are all fully qualified and very experienced in their specific field. We have specialist knowledge of German, English and Japanese vehicles, however we do work on all makes and models on a daily basis. We guarantee all work, and can offer customer a collection and delivery service at an additional cost within 20 miles, as well as the use of our comfortable waiting room which has Wi-Fi and refreshments available.
Four Fab Wheels, 12 Craven Park Mews, London, NW108SS

Southlands Autocentre

4.5/5

PROVIDING STRAIGHTFORWARD QUALITY AUTOMOTIVE CARE Southlands Autocentre has been established to offer customers quality workmanship, cost-effective solutions and delivery on-time. Our mission is to deliver a new level of transparent service and experience for customers not usually familiar to the vehicle repair and maintenance industry. All our workshops are fully equipped with the latest tools and hi-tech equipment, so vehicles are maintained to exacting manufacturer standards. We believe in providing customers with cost-effective automotive solutions and complete service transparency. We invest in the latest technologies to bring you a high-level of service. Our offering includes convenient hassle-free online bookings for MOTs, vehicle servicing and easy to use ordering system for tyres. Our workshop is equipped with the latest tools and hi-tech equipment, so vehicles are maintained to exacting manufacturer standards. We believe in providing customers with cost-effective automotive solutions and complete service transparency.
Southlands Farm, Stoke Road, Stoke Hammond, MK179BN

Dsr Autos Limited

4.6/5

If you’re looking for affordable quality work carried out by skilled technicians and delivered with great customer service in Leicester then you’re in exactly the right place. We are one of the leading independent motor vehicles repair specialist garages in Leicester. If you need a motor vehicle service, MOT or car, van and Lcv repair in the Leicester area for all range of manufacturers’ vehicles, our friendly local technicians are here to help today. DSR Autos Limited are approval by the RAC Garage Network & audited so you can can be sure both you and your car will enjoy a top-notch service giving you total peace of mind every time. **RAC approved garage network works to the RAC customer charter. A code of conduct which has been approved by the Chartered Trading Standards Institute so you can be absolutely confident that you’re in safe hands. We look forward to seeing you with your beloved vehicles MOT and repairs Our Services: Petrol, Diesel, hybrid & EV Testing Timing Belts replaced Air Con Regas/repair Brakes & Clutches Suspension & Steering Car Servicing & Repair Exhaust & Batteries Welding Mot Class 4 & 7 Arrange Used Cars Sales Finance Extended Warranty Payment Assist/ 0% interest free payments. Diagnostics Mercedes, BMW, And Mazda VAG Group Digital Service Available with Genuine Parts ( price available on request ) Repair Centre: Opening Hours: Monday to Saturday 08.30am to 06.00pm Used car sales: Opening Hours: Monday to Saturday 08.30am to 06.00pm and sunday 11.30 am to 04.30pm sunday is by appointment only. We only use quality replacement parts. All our workmanship is guaranteed with 12 months of parts and labour.
17 Layton Road, Off A47 Uppingham Road, Leicester, LE50PU

Kerr Tech Automotive ltd

5.0/5

Kerr-TechAutomotive Ltd is a well established Vehicle Repair company and MOT Station that has built up an enviable reputation over the last 13 years. We pride ourselves on our commitment to provide a professional and speedy service at all times, whilst maintaining the highest quality of work using our latest in diagnostic software, our "Green" Machines for engine deep cleaning and Carbon cleaning
Kerr-Tech Automotive Ltd, Unit 5, Alleysbank Road, Rutherglen, G731LX

Pinewood Garage Ltd

4.5/5

We are a limited company garage based in Thatcham, Berkshire. Our garage of fully trained technicians with over 30 years of experience is highly equipped, enabling us to offer a comprehensive range of servicing and repairs for all makes and models of vehicle. We pride ourselves on our workmanship, delivering an outstanding level of customer service and providing value for money to our customers. When bringing your car to us, you can be sure to be receive knowledgeable, honest and friendly advice along with a prompt and high standard of service.
Pinewood Garage Ltd, Hermitage Road, Cold Ash, Thatcham, RG189JN

Frequently asked questions on car diagnostics

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.

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

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.

Diagnostic tests take from 30 minutes to a few hours. This depends on what issues are being looked at.

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.

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.