Engine diagnostics


When a warning light illuminates on your dashboard, an engine diagnostics check can help identify the problem before more serious damage occurs.


Most modern vehicles today contain an on-board computer known as an Engine Control Unit (ECU) which continually monitors the performance of the vehicle. Sensors all around the vehicle report back to the ECU if there are problems such as low fluid levels or increased engine temperature. When an issue is identified the ECU generates an error code.  

Examples of this type of fault can be seen below:

There are literally hundreds of potential error codes that can only be read by specialist vehicle diagnostic equipment. While a warning light may display on the dashboard alerting you to an issue, a diagnostics check is required to understand the full extent and cause of the problem.


At Hillcroft garage, we pride ourselves on being able to identify and fix the most complex fault.

Our Services

- Mechanics

- Car Checks

- Oil and Break Checks

- Breakdown Services

- Tire Change

- Battery Change

All major credit cards accepted

Opening Hours

Mon - Fri: 8:30am - 6:30pm

Sat: 9:00 am - 1:00 pm

Contact Us

01633 412 592

01633 271 700 (24 hour)


Chepstow Road
Newport Gwent
NP18 2JN

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