Car Diagnostics | Book a Car Diagnostic for your Mazda

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 Mazda models such as CX-5, CX-30, Mazda2, Mazda3, and MX-5. This service is completed at your home or workplace, following Mazda 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 Mazda

We’ll come to you at home or work

RAC Mobile Mechanic for your Mazda

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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 Mazda

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

GJB Autos

4.2/5

Welcome to GJB Autos, we are a garage conveniently located on Littlestone Road New Romney. We serve the local community of the Romney Marsh and surrounding areas. We are proud to have been established since 1975, in North Street New Romney and moving to our current premises in Littlestone Road in 2015. GJB Autos have built a great reputation providing a professional and friendly service to all our customers. It’s important to regularly maintain and check your car, not only for your safety and the safety of drivers around you but it will also help to sell your car in the future with a comprehensive service history. GJB Autos offer a comprehensive range of services at our service center including engine diagnostics, servicing, brakes, tyres, air conditioning, ECU remapping and much more. With many years experience in the industry, we can carry out servicing on all makes and models of vehicle. GJB Autos is a VOSA approved MOT testing centre for class 1,2, and 4 and a registered member of the GoodGarageScheme.com RMI, Autofirst Network, RAC Approved/Accredited, we guarantee quality and efficient work at reasonable prices every time.

8 Littlestone Road, New Romney, Romney Marsh, TN288PL

Edinburgh Car Services Mot & Service Centre

4.9/5

Welcome to Edinburgh Car Services As an independent, family run business, we at Edinburgh Car Services pride ourselves on delivering the highest quality of vehicle maintenance and repairs for our customers. With Over 30 years’ combined experience we have a passion for the work we do, and only ever use the highest quality parts. But we know motoring is expensive and most of our customers would rather spend their hard earned money on something else, so within those parameters, we keep our prices to a minimum as much as possible. Of course, we also cater for petrol heads and enthusiasts who want to splash out on their cars, offering performance upgrades and advanced components. We are an Edinburgh based, Scottish, independent, family run garage and offer a vast range of services within the motor trade. All of our service plans are tailored personally for each individual’s vehicle, ensuring the best in-depth analysis and repair. We are always happy to advise on he best course of action for any customer, and we are as up-front as we possibly can be about costs. That includes fixed price servicing, which is carried out to manufacturer specifications and will cover your warranty – despite what expensive main dealers might say! We pride ourselves on our vast knowledge of the trade and are highly respected in the motor industry. As we are a small family business we put 100% in to looking after our customers and their vehicles. We know we need our clients as much as they need us! Garages can be a daunting place for many people, but our staff – male or female – will be more than happy to answer any queries you may have.

Unit 7, 33 Bankhead Terrace, Edinburgh, EH114DY

CS Automotive Vehicle Repair Ltd. T/A CS Autos

5.0/5

Rated 5* on Google. Discover CS Autos – your go-to destination for premium automotive care without the dealership price tag. At CS Autos, we're dedicated to delivering unmatched service quality, ensuring your vehicle receives top-notch attention every time. Our team of skilled technicians is committed to keeping your vehicle in peak condition, from routine maintenance to specialized repairs. Experience the difference with CS Autos – where excellence meets affordability. We specilise in Mercedes-Benz vehicles with over 25 years main dealer experience we will be able to assist with vehicles ranging from a Smart Car to a Mercedes Sprinter. Our workshop based in Kelvedon, Essex is where your vehicle will be maintained by our expert technicians. We also offer a Fleet management service for business owners who have a large fleet of vehicles.

Ewell Hall Barn, Ewell Hall, Kelvedon, CO59BQ

Oakcroft Garage

4.7/5

Oakcroft Garage is based in Chessington, just off the A3. We specialise in MOT, Servicing, Repairs, Brakes, Exhausts, New clutches, Tyres, Diagnostics, Wheel alignment, Air conditioning and Full car body and paintwork services. We also work with all the major insurance companies to provide full accident repair services.

Oakcroft Works, Unit A, Oakcroft Rd, Chessington, KT91RH

Queensway Autos

4.6/5

If you’re looking for repairs in Enfield that you can trust, Queensway Auto Repairs is the garage for you. We’re a local garage in the area, priding ourselves on our customer service and the amount of happy customers that leave our garage. We have built up a reputation in the area as being a garage our customers can count on and we also have worked hard and done many jobs that has got us on the fixmycar newsletter august spotlight as we are one of the best on the platform nationwide. Whilst we provide quality services, we always endeavour to keep prices affordable. All our parts are genuine quality parts, manufacturer original or equivalent so that your repairs last longer. You don’t need to pay until the day and we’ll always run additional work past you first. We employ a team of 5 fully qualified mechanics, including 3 MOT testers, who can get your vehicle road worthy ASAP. Aside from our mechanics, we also employ 2 drivers, as we offer our customers a FREE local collection and delivery service.

Unit 15D, Queensway, Enfield, EN34SA

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.