Glow plug replacement on mk4/A4 ALH engine. Applies to most VW Diesel engines.0:00 Introduction0:19 Glow plug location0:32 Diagnosis1:04 Testing glow plug an
javijavit -. The light you describe IS the glo plug symbol. If it is on and steady it indicates something not quite right - and a MIL will be set. If it is flashing the issue is more serious an a MIL will also be set. In both cases the MIL will remain in the computer logging system until deleted by VCDS or equivalent.
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