Book a Car Diagnostic in Chesterfield

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 Chesterfield

We’ll come to you at home or work

RAC Mobile Mechanic in Chesterfield

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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 Chesterfield

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

AJ Services

We are a reliable family run business that covers Dronfield and the surrounding towns. We repair vehicles to the highest of standards at a very low cost to yourselves. If you would like us to quote on any work then please contact us via the Who Can Fix My Car website.

Unit 5 Birch House Way, Callywhite Lane, Dronfield, S18 2XR

2B Cars Ltd

Here at 2B Cars Ltd, as an RAC APPROVED GARAGE, we can offer complete solution to our customers car - from complex diagnostic to mechanical work, to car sales or bodyshop we strive to be the best in town. From March 2009 we decided to extend our fields so now we can offer body work solution aswelll - both business Being IMI accredited .

Rac Approved Garage, Warehouse B, 79 Denby Street, Sheffield, S24QE

GT Automotive Group ~ Sheffield

GT Automotive offers a comprehensive range of Aftersales services and vehicle repairs from our fully equipped onsite workshop. Our highly skilled and qualified technicians bring years of experience across multiple vehicle brands. Every vehicle that comes to us receives a FREE health check, including a full digital report for your peace of mind and safety. To make maintenance more manageable, we also provide 0% finance options over 3 or 6 months. Customers can relax in our comfortable waiting area with refreshments, or take advantage of our collection and delivery service available for local customers. As a proud family-run business, we’re committed to serving our local community with honesty, care, and exceptional service.

1 Orgreave Way, Sheffield, S139LS

Pitstop Car & Commercial Automotive Services Ltd

Welcome to Pitstop Car & Commercials Automotive Services Ltd Sheffield’s Top Class 4, 5, and 7 MOT Centre Welcome to Pitstop Car & Commercials Automotive Services Ltd, the only Class 7 MOT centre in Sheffield. Our friendly technicians have over a decade of experience working with all makes and models of cars and are eager to help with any of your automotive problems. On top of working with all makes and models, we specialise in LCVs and have two MOT bays so we can guarantee a speedy turnaround. We are proud to be one of the top garages in Sheffield. When you need an MOT, service or repair in Sheffield, book online with Pitstop today. What We Offer We aim to go above and beyond your expectations for a car garage in Sheffield – our customers are our main priority. We offer a free collection and delivery when you book a service, so you don’t have to worry about us interrupting your day. We can also organise a loan car for you – get in touch and we can help you with that. Under special circumstances, we can offer appointments on a Saturday, and you can now book online at your convenience.

424A Pitsmoor Road, Sheffield, S39AY

JP Autotechnics Ltd

All our Technicians are A.T.A accredited , highly qualified and trained to the highest spec to provide the ultimate service and care of your vehicles. For a Bosch & Unipart car care centre you have come to the right place! We are a Family Business that has been trading and providing a service for the past 31 years and we pride ourselves in our continued commitment of service and excellence to both Public and Trade. Servicing, MOTS AND; repairs to cars & light commercial vehicles. All fleet car servicing M O T Testing, Full diagnostics on engine management, abs, air bags, climate control, and most other functions on the electronics in modern cars We also can program keys on most major manufacturers vehicle including Renaults Tuning & rolling road tuning Carburettor overhauls Air conditioning systems Turbo chargers & turbo diagnostics Full remapping service on petrol and diesels Delphi diesel point service and repairs Bosch diesel and petrol service and repairs Tyre fitting service up to 24? rims Full Terraclean engine cleaning service on both petrol & diesel engines

Unit A - B 28-34 Main Street, Aughton, Sheffield, S26 3XJ

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.