1997 Volvo S40, 2 litre petrol, 105K miles. Good general condition.

Intermittent engine start-up problem. Ignition lights come on, but turning key produces no result. Problem mysteriously vanishes after several starting attempts or after a protacted period of non-use. Happens when doors unlocked or after doors are locked and alarmed. Engine warm or cold. With either of the keys.

Car delivered to Volvo main dealer who started it faultlessly twice a day for 10 days and said there wasn't a problem (I didn't get the impression they'd looked too hard). A couple of days later and the car wouldn't start again.

Can anybody suggest where I might usefully start looking to cure this debilitating problem? Many thanks for any help.

Jim

Edited by JimJames on 23/06/2011 at 12:10