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Vauxhall Zafira B - Pre-heat light stops on after engine start. - biggrin

The pre-heat warning light is on all the time, it has happened before but it did eventually go off.The car maintenance is up to date, Next service due in July. How often do the glow plugs have to be replaced? Also with the light staying on, would this change the engine behaviour? It does sound slightly noisier.

Many thanks in advance.

Vauxhall Zafira B - Pre-heat light stops on after engine start. - elekie&a/c doctor
You will need to get the diagnostics checked.It could be a glow plug fault or something else.There is no exact life span for glow plugs .Get them changed when they fail.There are 4 on this engine.