I'm a drummer, I hit things!
Join Date: Jun 2008
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Sounds like the glow plug warning light, which should only come on for cold starts for a few seconds and then exstinguish. The engine management light is engine shaped. As for the "dipping" my dCi does that on idle when the air con is on- it's the aircon clutch going in and out methinks- nothing to worry about though if it is that. Try switching the aircon off and see if the dipping stops?I'm no expert, so I have no idea why the preheat light should come on while at 70mph- has the symptom persisted or was it a one off? Was it wet- could it have been som water in the electrics?
Currently in bigiainw's garage:
2016 Skoda Octavia Scout 2.0 CR 150 in Cappuccino Beige/ 2006 Renault Clio III 1.2 16v 3dr Extreme in Post Box Red/ 2013 Renault Trafic LL29 2.0 dCi (euro 5) Sport Passenger in Luxurious Gun Metal Grey with Cruise control, now with parking sensors!!!