Book a Car Diagnostic in Daventry

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 Daventry

We’ll come to you at home or work

RAC Mobile Mechanic in Daventry

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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.

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 Daventry

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

Binley Woods Service Centre - Rugby

**PROUD FINALIST IN THE WCFMC GARAGE AWARDS 2019/20*** choose our Coventry branch CV3 or newly opened Rugby branch CV21 and opt for a FREE collection & delivery OR book a mobile visit- we have a state of the art workshop on wheels www.mobileautoexperts.co.uk - ideal for tyre replacements and EMERGENCY CALL OUTS and batteries we come to YOU Still using a MAIN DEALER? Make the SWITCH to your LOCAL INDEPENDENT GARAGE and save £££££ YOUR MANUFACTURE’S WARRANTY WILL NOT BE AFFECTED - we use OE dealer standard filters for cars under warranty WARWICKSHIRE’s LEADING MULTI -BRANCH INDEPENDENT GARAGE Everything you need to keep you car moving .... Servicing | Repairs | MOT | Tyres | Diagnostics | Aircon regas | DPF clean | Clutches | Brakes ... and much more Over 80% of our customers rate is EXCELLENT on all review platforms. Our service centre provides the best quality methods used in the industry to undergo the best and most satisfying experience you will have when letting us handle all you car repairs and maintenance. **We provide FREE collection and delivery from your work or home all across Warwickshire and surrounding district areas - hassle free so you can carry on working or just relax - as long as car is drive-able WE GOT IT! ( Mon-Fri only, not available on weekends) ***We offer payment plans: split the bill over 4 equal payments - no credit check , no interest added. We are endorsed and verified by the AA & RAC as a recommended car service repair centre, as well as being memebers of RMI - Retail Motor Industry. We use only the best engine oils - SHELL HELIX- and are part of there authorised workshops across UK. We are part of UK;s largest garage network AUTO GARAGES (GAU) & APPROVED GARAGES and are also a Shell Helix motor oil centre. We will save you time, effort & ££££ We provide you a main deal alternative and facilities without the main dealer price tag. At Eurorepar Car Service, we’re all about keeping you and your car moving with confidence. As a trusted network of local garages, we provide high-quality car maintenance and repairs tailored to your needs – all at competitive prices. With our exclusive Brakes for Life program and a 2-year parts and labour warranty, you can drive away knowing you’re covered for the long haul.* Ask your Eurorepar Car Service Centre to fit Eurorepar branded parts to qualify. Claims under the 2-year parts and labour warranty must be made at a Eurorepar Car Service Centre. Discover expert care, unbeatable value, and peace of mind – all under one roof. Ready to experience the Eurorepar difference? Request a quote or give us a call today! *Terms and conditions apply.

Unit 2, Prospect Park, Valley Drive, Rugby, CV211TF

IN'n'OUT Autocentres Northampton - Brackmills

At IN’n’OUT Autocentres we offer fixed prices MOTs and Servicing for any make and model of car with no hidden extras. We are proud to be a ‘Which? Trusted Trader’ so we are really a garage you can trust. We also have a 5 Star Trustpilot reviews rating. We provide OEM parts and 12 months warranty on all parts and servicing. We only use premium Castrol oils in all servicing. Our services are all completed ‘while-u-wait’ so you have never have the inconvenience of losing your car for the day. You can watch your car as it is being worked on through the viewing window or sit back and relax in our clean and comfortable customer lounges with FREE Wi-Fi and coffee and read the latest magazines. Check out our latest reviews and BOOK NOW!!

Brackmills Business Park, Caswell Road, Northampton, NN47PW

In Town Automotive, Bosch Car Service

In Town Automotive is one of the largest independently owned vehicle servicing and repairs garage in Northampton. Not only are we RAC approved and a Foxy lady approved garage, we are committed to delivering a high standard of service, friendly advice and top quality parts. We are based in Northampton and cover all surrounding areas including: Kellmarsh Daventry Towcester Wellingborough Our team of expert technicians provide a range of garage services for all makes and models including: Diagnostics MOTs Full & part servicing Clutches Cambelts Tyres Here at In Town Automotive we are growing from strength to strength, so for a competitive price and a quality service every time, post your job on whocanfixmycar.com today!

Unit 6, Main Road, Rothersthorpe Rd Ind Est, NN4 8ES

ADA AUTOCARE LTD

ADA offers a wide range of repairs, servicing, MOT’s and more. Call us to see how we can help.

Unit 4 Whites Yard, Horsley Road, Northampton, NN26LJ

BRS Automotive

Welcome to BRS Automotive, Banbury's trusted and award-winning garage. Proudly securing the 'Best Garage In The South East' title from whocanfixmycar.com in 2019 and 2022, we are delighted to announce our recent accolade as the 'Best RAC Garage of 2024'. Our comprehensive range of services includes mechanical repairs, maintenance work, servicing, and MOT. Rest assured, your vehicle is in capable hands with our technicians, who hold Senior ATA accreditation levels and boast years of industry experience. Booking with BRS guarantees you the peace of mind that comes with our commitment to excellence. While specializing in sports and performance cars such as Jeep, Mercedes, and Porsche, our expertise extends to all makes & models and small vans. We pride ourselves on using only quality parts, ensuring your vehicle leaves our premises in peak condition. At BRS Automotive, customer service takes precedence. We are dedicated to providing the best service and experience for all our clients. When you choose BRS, you choose a team that prioritizes your satisfaction and consistently delivers excellence in every aspect of our work. Experience the difference with BRS Automotive – where skill, quality, and exceptional customer service converge to redefine your automotive service expectations.

Unit 1 Thorpe Way, Banbury, OX164SP

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.