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Robert
Robert, UK Qualified Car Technician
Category: Car
Satisfied Customers: 4503
Experience:  Fully qualified / self employed garage technician in the UK
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My car has just failed its mot because airbag light is on and

Resolved Question:

my car has just failed its mot because airbag light is on and wont go off and they don't know why
Submitted: 1 year ago.
Category: Car
Expert:  Robert replied 1 year ago.
Hi..there..

What procedures have they carried out to deal with this problem do you know?

Was it on before the car went in for MOT?
Customer: replied 1 year ago.

the mot station said need to see a diagnostic mechanic and it could cost anything from ten pound to four hundred

Expert:  Robert replied 1 year ago.
Hi..there..

When it comes to the Airbag/SRS system faults you will need to have the system diagnosed on a scanner thats able to introgate the airbag module to see what fault codes are present.that way you'll have an understanding what part of the airbag system has developed a fault hence why the airbag warning is on..Once you have those fault codes then you can progress forward with a repair..or investigate/check of the connections to those airbags/pretensioners etc.the most common is normally a connection fault usually below/under the seats....Testing normally with most garages is around £25-£40 per test but you need a high end scanner for this so you will need to ask the garage who is going to do this work they have the ability to check and diagnose the system and repair...so sadly thats about the only way forward on this im afraid..just one of these things that are now recently added and testable during MOT..so the airbag warning must come on at ignition.it will go through it self test and once pased the airbag light will go out and thats what they want to see for it to pass on that...
Robert, UK Qualified Car Technician
Category: Car
Satisfied Customers: 4503
Experience: Fully qualified / self employed garage technician in the UK
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