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Ignition fault

steve 098
in Audi A3 (8L) Forum

Featured Replies

Help my a3 tdi has fault, starts OK but speedo, rev counter , mileage heater plug light airbag & abs light stay on can anyone advise suggestions??

Solved by cliffcoggin

Go to solution

It's likely the instrument cluster has failed, a common fault on A3s. Companies such as ECU testing amongst others can usually repair it for less than £300. You will need to remove the cluster and post it to them.

    • Like 1
    • Thanks 1
    • 2 months later...
    • Author
    On 2/21/2026 at 6:44 PM, cliffcoggin said:

    Was the reply of any help to you Steve, or did I waste my time writing it?

    Thank you great suggestion cured the fault it was as you suggested the cluster 👍

    this usually isnt lots of separate faults tbh 👍

    on A3 TDI when speedo + rev + ABS + airbag all stuck on, its often CAN / power issue or ABS module not waking up

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