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 B0030, B0035, B0036, B0037, B0038, B0040. He is a breakdown of each BMW code.
B0030 RF/Passenger Side Deployment Loop Short to Ground/Voltage Out of Range
B0035 ADS Closed/Shorted to Ground
B0036 ADS Open/Missing/Shorted to Battery
B0037 AUX switch closed/shorted to ground
B0038 AUX switch open/shorted to battery
B0040 LF/Driver Side Deployment Loop Resistance Low
Contact us
If you need to diagnose any of the following BMW fault codes B0030, B0035, B0036, B0037, B0038, B0040 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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