Car Diagnostics

Fast fault finding with the latest diagnostic technology.

We pinpoint faults quickly

Expert Vehicle Diagnostics

Modern vehicles are packed with complex electrical systems and sensors. When a warning light appears on your dashboard or your car isn’t running as it should, accurate diagnostics are essential.

At DCM Autocentres, our skilled technicians use advanced diagnostic equipment to quickly identify faults in your engine, electrics, and onboard computer systems. This means no guesswork, just precise results and the right repair, first time.

Why Book a Diagnostic Check?

Booking a diagnostic check with us means:

Quick identification of problems

Helps prevent breakdowns and major faults

Peace of mind knowing your car is safe and roadworthy

Car Garage crew and logo in Shaftesbury and Blandford, showcasing our car services, tyre fitting, and MOT testing expertise

Common Issues We Diagnose

Our diagnostic tools allow us to read fault codes and pinpoint problems such as:

  • Engine management and performance issues
  • Dashboard warning lights (ABS, airbag, check engine, etc.)
  • Emissions and fuel system problems
  • Battery, alternator, and charging faults
  • Electrical system malfunctions

By finding the exact cause of the issue, we can recommend the most effective repair and prevent further damage.

The DCM Diagnostics Process...

Don’t ignore warning lights or performance issues, they could lead to costly repairs if left unresolved. At DCM Autocentres, we’ll quickly find the cause and get your vehicle back to full health.

  • 1 Initial Assessment – We’ll discuss the issue with you and check the vehicle’s symptoms.
  • 2 Diagnostic Scan – Using professional equipment, we connect to your car’s ECU to read error codes.
  • 3 Fault Analysis – Our technicians interpret the results and identify the root cause.
  • 4 Clear Report & Advice – You’ll receive straightforward recommendations for the best next steps.

We are highly rated and reviewed

Caroline Knight profile pictureCaroline Knight
07:36 20 Aug 25
Quick & efficient service. Very helpful & friendly
Sam Old profile pictureSam Old
07:45 05 Aug 25
I have used this company twice recently, an emergency tyre on a Beetle and an emergency (unusual) battery on a classic Golf. Both times they have been excellent. Very helpful, professional and friendly staff. Highly recommend .
Freja Holvey profile pictureFreja Holvey
09:06 28 Jul 25
We highly recommend DCM! We travel over an hour to use their services because the team is always so friendly, supportive, and professional. They clearly explain any work needed without pressuring us—always prioritising the safety of our vehicle. Their online system is fantastic, offering a clear breakdown and photos of their findings, which really helps us feel informed and confident. When we couldn’t make it during business hours to collect our car, they kindly arranged a secure lock box system so we could pick it up at our convenience. Thank you so much, DCM!
James Stevenson profile pictureJames Stevenson
08:46 28 Jul 25
A very efficient, effective and courteous service. Thank you.
Maria C (Maria C) profile pictureMaria C (Maria C)
03:48 23 Jul 25
No words can do justice to the entire team of DCM Shaftesbury, they all give their best making everything they can to help.
Honest company with the best management, very transparent about prices and their services are always outstanding. I am grateful to finally have a reliable mechanic that I can fully trust. Regardless of their busy schedule, the reception is always welcoming and helpful
Jennie Shearing profile pictureJennie Shearing
09:26 22 Jul 25
Absolutely outstanding service. Both myself and my partner have used DCM and had flawless experience. Most recent visit I had my newborn with me and they were so kind and helpful. Would definitely recommend!!!! Thank you team!
tracey jones profile picturetracey jones
18:07 19 Jul 25
Excellent service. Polite and friendly would definitely recommend
All Staff are friendly from the front desk to the mechanics. Recently done lots of work to my car that had a number of big issues, however staff were kind and considerate throughout the process and even let me have a free courtesy car

Really recommend DCM in Shaftesbury
michael ovenden profile picturemichael ovenden
06:55 15 Jul 25
Each time I call in with an issue they are excellent, always helpful and cheerful and great value for money. Excellent 👍
Richard Liddiard profile pictureRichard Liddiard
14:36 14 Jul 25
Great service, car broke down on the Sunday they took it in first thing Tuesday all sorted and great value for money. All staff friendly and very helpfull would recommend to everyone
Richard