Car Diagnostics | Book a Car Diagnostic in Northampton

Trustpilot rating for all RAC Mobile Mechanics.

Why choose the RAC for a car diagnostic?

At the RAC, we've got over 125 years' experience helping UK drivers. We have the skills and knowledge to keep your vehicle running.

Plus, with RAC Mobile Mechanics, you can avoid the hassle of taking your vehicle to a garage when you need a repair. We’ll come to you, at your home or work.

Close up of an RAC Mobile Mechanic underneath a car

Our top pick in Northampton

Our top pick

RAC Mobile Mechanic in Northampton

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.

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.

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:

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 in Northampton

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.

Try one of our RAC Approved Garages

View all garages

ADA AUTOCARE LTD

5.0/5

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

Billing Car and Van Centre

5.0/5

Billing Car & Van Centre is an RAC Approved Garage that specialises in the repair of vehicles with fair pricing. Customer satisfaction and retention is extremely important to us. Our ethos is simple; to be open and honest with our customers. We will not commence any repair work without fully discussing it and providing a quotation. Should any complications arise during the repair process, we will keep customers fully updated at every stage. We have a drop-off facility at our sales site, or we can offer a collect and deliver service locally FREE of charge (by prior arrangement)

Units 4 And 5, 2 Pennard Close, Backmills, NN47BE

AMS Autocare Limited

4.7/5

We specialise in naked Tesla wheel refurbishment

Grafton Street, On The Corner, Northampton, NN16AZ

IN'n'OUT Autocentres Northampton - Brackmills

4.3/5

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

4.0/5

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

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.