We are an award winning independent garage that can service your BMW vehicle fault codes. We invest in all of the latest BMW tech that will help us get to the heart of the problem your BMW is experiencing at our garage workshop pictured below.

If you are experiencing BMW fault codes P0033, P0034, P0035, P0036, P0037, P0038, P0039. He is a breakdown of each BMW code.
P0033 Turbo Charger Bypass Valve Control Circuit
P0034 Turbo Charger Bypass Valve Control Circuit Low
P0035 Turbo Charger Bypass Valve Control Circuit High
P0036 HO2S Heater Control Circuit
P0037 HO2S Heater Control Circuit Low
P0038 HO2S Heater Control Circuit High
P0039 Turbo/Super Charger Bypass Valve Control Circuit Range/Performance
Contact us
If you need to diagnose any of the following BMW fault codes P0033, P0034, P0035, P0036, P0037, P0038, P0039 then call us. We have the dealer level tech needed to not only diagnose the fault but to fix it as well. Use the contact information below or contact form to book your vehicle in for a diagnostic. We are happy to help.
A1-Diagnostics
64 Sloper Road
Leckwith,
Cardiff
CF11 8AB
Tel: (029 20) 220380
Fax: (029 20) 223172
Opening Times
Mon – Fri: 8:00am – 6:00pm
Email: info@a1-diagnostics.com
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