
At A1 Diagnostics in Cardiff, we combine advanced diagnostic technology with hands-on expertise to assess turbo faults and reliably repair or replace your vehicle’s turbocharger. If you have noticed a loss of power, unusual whistling or excessive exhaust smoke, our team can investigate the cause and determine the right repair approach. We look beyond the turbo itself to check for underlying issues that could affect its operation, helping protect the replacement or repaired unit. With careful fitting and checks following the work, we aim to restore your vehicle’s performance and get you back on the road with confidence.
If your vehicle is losing power, burning through fuel or you are seeing white smoke billowing out of the exhaust this means you could well have a problem with your vehicles turbo.
Another symptom you have a turbo problem is this. Are you hearing large whistling or clunking sounds coming from the underneath of the vehicle? This is also a classic sign that you have a problem with the vehicles turbo.


Choosing A1 Diagnostics for your turbo repair means getting clear advice about the options available for your vehicle. Once we have assessed the fault, we explain whether a repair or replacement is appropriate and what work is needed to address the cause. Our Cardiff team focuses on a lasting result, combining careful workmanship with diagnostic checks to confirm the turbo is operating correctly. Contact us to discuss your concerns and arrange an assessment.
When there is a turbo problem present what you will see is a build up of metallic shrapnel inside the turbo. This build up can be caused because of a number of reasons from engine wear and tear, vehicle components breaking down or even oil contamination. Oil contamination is when you put the wrong oil in the engine or a cheap oil. Cheap oil can burn up quickly leaving your engine dry and affecting components like the turbo. This is why here at A1 Diagnostics we only use oils that can be trusted like Shell or Mobil1. Here is a photo of metalic build up within the turbo on a vehicle, this build up causes the turbo to fail and the vehicle to lose power.



We have been trading for many years and have gained major accreditations with well known motor companies.
Being approved by the TSI, the IMI, the RGI and the IGA should give you confidence that we are the turn to organisation for all of your turbo repair needs.
We have fully qualified technicians certified by the IMI..
If you have any queries regarding our accreditations then please get in touch we are happy to help.
02920 220 380
info@a1-diagnostics.com

We are an award winning independent garage that can carry out turbo maintenance services. Get in touch for more information.
A1-Diagnostics and ECU Repairs
64 Sloper Road
Leckwith,
Cardiff
CF11 8AB
Tel: (029 20) 220380
Fax: (029 20) 223172
Opening Times
Mon – Fri: 8:00am – 6:00pm
