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Home >> Audi >> 2018 >> A4 Premium >> Repair and Diagnosis >> Maintenance >> Procedures >> Maintenance (General Information) >> Maintenance >> Maintenance Work >> Horn, Checking Function >> Procedure:

Horn, Checking Function: Procedure:

-- Switch The Ignition On.

-- Operate The Horn And Check The Function Of The High And Low Tone Horn.

NOTE:

Perform The Function Test Outside, For Example At The Workshop Entrance Or During A Road Test.