Heater taking a while

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   520. 2002 model

Heater not coming on for a while after I start the car.     I thought these either went completely or not at all.  Its not even taking time to warm up, its full out cold and then "sometime" later, maybe 20-30 minutes,  it switches from full cold to full heat.

any ideas?

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pani Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 23-August-2006 Status: Offline Points: 11	Post Options Post Reply Quote pani Report Post Thanks(0) Quote Reply Topic: Heater taking a while Posted: 13-January-2014 at 16:45
	520. 2002 model Heater not coming on for a while after I start the car. I thought these either went completely or not at all. Its not even taking time to warm up, its full out cold and then "sometime" later, maybe 20-30 minutes, it switches from full cold to full heat. any ideas?

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kbannon Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Admin Group E39 525i Sport Individual Joined: 09-October-2002 Location: 64 Zoo Lane Status: Offline Points: 15508	Post Options Post Reply Quote kbannon Report Post Thanks(0) Quote Reply Posted: 13-January-2014 at 17:16
	Assuming everything else is OK, I'd still assume its the FSU hedgehog (#3 in this (for my car).
	Current: 2009 E60 520d "Sport" tractor Previous: 1989 E30 320i SE 1997 E39 523i 2003 E39 525i Sport Individual

Andrew Rolland Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Go away rain Joined: 19-August-2004 Location: Scotland Status: Offline Points: 6579	Post Options Post Reply Quote Andrew Rolland Report Post Thanks(0) Quote Reply Posted: 14-January-2014 at 08:28
	Or it could be a lazy thermostat. Sticks fully open so the heater doesn't get hot then regains some of it's control and starts working once the engine gets warmed up, which will take much longer with a dodgy thermostat. If it is a lazy stat then you will notice the engine temp gauge will be on the cold side of normal. If the engine temp gauge is o.k. then it could be a fault with the electronic side of things as mentioned above.
	Be exclusive and drive a Petrol 5 Series! Current '13 62 F10 535i MSport Auto Previous '04 04 E60 545i SE Auto '03 53 E60 545i SE Auto (Stolen) '98 S E39 523i SE Auto