Book a Car Diagnostic in Weymouth

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 in Weymouth

We’ll come to you at home or work

RAC Mobile Mechanic in Weymouth

CDRSD-703_SEO500_-_Location_Page_-_Top_Pick_-_800x450.webp

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.

Average cost of a vehicle diagnostic by car make^

The RAC charges a flat rate for the cost of a car diagnostic but prices may change due to inflation. According to RAC data, the average cost of a car diagnostic is £87.

Make	Average price
Ford	£105
Vauxhall	£105
Volkswagen	£105
Peugeot	£104
Mercedes-Benz	£104
Nissan	£106
BMW	£107
Audi	£106
Renault	£104
Citroen	£104

^Average price quoted for RAC Mobile Mechanics from 01/01/25 to 31/03/25.

And it’s not just car diagnostics that we do in Weymouth

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

Casterbridge Motor Group Ltd

Family run Mercedes-Benz Specialist in Dorset's county town. We are also RAC Approved offering to undertake warranty work. Offering a wide range of Automotive options at competitive prices including: * MOT(by appointment) * Servicing (including Digital Service Book) * Repairs * Diagnostics * Air Con servicing and repairs * Clutches * Brakes * Tyres and Exhaust * Courtesy Vehicle * Local Collection & Delivery service * Car sales with warranty

Millers Close, Grove Trading Estate, Dorchester, DT1 1ST

MRG Auto Repair located on 54A BELENA CLOSE BH17 7DY

MRG is a qualified and honest Garage, able to diagnose and repair many kinds of problems in your car or van, ask for a quote right now. We are located on 54A Balena close BH17 7DY We are an expert car-servicing garage providing comprehensive servicing solutions, Free MOT pre-checks and repairs situated in Poole. we are uniquely equipped with the specialist equipment to undertake MOT pre-checks, general repairs, all makes servicing and a variety of work to electrical systems around your vehicle. At MRG Auto Repair in Poole, you can be assured that only an expert will work on your vehicle. Looking to book Servicing or a Free MOT Pre-Check online in Poole? You now can with MRG Auto Repair! Use our interactive live, real-time booking system to book an MOT pre-check, diagnostics or ECU Remapping service. It has never been easier, using our live system you can find the date and time that suits you, we can even send out servicing reminders for the following year so you never miss a thing. Choose our Poole based servicing and repair centre for quality services and trustworthy technicians https://www.mrgautorepair.co.uk/contact-us/ Please look at our Google reviews

54A Balena Close, Poole, BH177DY

Graham Hill Motor Technician

Graham Hill Motor Technician is a family run business which has grown from strength to strength over the years. We offer a host of services, ranging from but not limited to routine servicing and maintenance, brakes, clutches and repairs. We are also an RAC approved garage working in line with The Motor Ombudsman Code of Practice - promising higher levels of customer service.

20A Mannings Heath Road, Poole, BH124NQ

Auto Solutions Axminster

The best in town - We are one of the leading vehicle repair, diagnostic & servicing garages across Devon, Somerset & Dorset. Based in Axminster we border 3 large counties making us appealing and convenient to a wide range of customers. If you want quality you would expect from the dealership, but with more personal and friendly atmosphere then you have found it. We have invested in all the latest specialist tools and diagnostic software that is specifically tailored for the software in your vehicle. Our Auto Repair shop is capable of servicing a variety of models. We only do the work that is needed for your problem.

Units 1, 2 And 3 Castle Gates, Castle Hill, Axminster, EX135RL

J Day Engineering

Your vehicle is in safe hands with our dedicated, highly skilled team. From initial booking through to key handover, our staff are on hand to assist with any queries, ensuring your vehicle remains in peak condition. J Day Engineering are proudly accredited by leading industry bodies, giving complete confidence in our workmanship and customer care. Motor Trader Independent Garage of the Yearand 2024. We utilise the very latest technologies and equipment to deliver service standards that exceed main dealers across the UK. This includes 2 x Hunter Hawkeye Elite alignment to allow commercial vehicle alignment, Hunter Quick Check Drive and Quick Tread Edge, advanced ADAS calibration systems, EV and hybrid servicing, and comprehensive diagnostics for modern vehicles.

J Day Engineering, Bow Bridge, The Marsh, Henstridge, BA8 0TF

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.