Intermittent warning light on a 2007 Astra

There is a warning light intermittently coming on in my 2007 Astra. Vauxhall garage says it's an inlet manifold problem and would cost £500 to fix.
The car runs normally whether the light is on or off. I am just ignoring it - should I be worried?

Asked on 21 April 2013 by Paul Booth

Answered by Honest John
If it's swirl flaps, don't ignore it or one of them could brake off, get sucked into the engine and destroy the engine.
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