RELIABLE & EXPERIENCED AUTO ELECTRICIANS IN CARDIFF

If your engine is giving you trouble, our engine fault service can help diagnose and fix the issue. Our experienced technicians use the latest diagnostic equipment to pinpoint the problem and get you back on the road in no time.

We specialise in hybrid and electric vehicle repair, ensuring that your eco-friendly vehicle is running at its best. Our knowledgeable technicians are trained in the latest technology and techniques to provide top-notch service for your hybrid or electric vehicle.

Airbag warning light illuminated? Windows won't work? We provide diagnosis and repair for all makes and models and can we can inspect and diagnose most electrical systems on a vehicle including radios, wipers, lights, windows, instrument panels, SRS systems and much much more.

If you're experiencing issues with your ABS or ESP system, our expert technicians can diagnose and repair the problem. Using advanced diagnostic equipment, we can quickly identify the issue and provide a solution to ensure your vehicle is safe and reliable on the road.

Here at Sumner Auto Electrics we have purchased genuine main agent equipment meaning that we can do nearly everything the dealer can on most makes and models. From software updates to reprogramming new and used control modules with the ability to also bench clone ECUs, TCMs, BCMs etc, we’ve got it covered. 

We can undertake Adblue diagnostics to ensure that your diesel vehicle is running at its best. We use the latest technology to diagnose faults in Adblue and DPF system correctly and legally meaning no troublesome emissions related countdowns which could leave you stranded