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dylbert View Drop Down
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Joined: 21-January-2006
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Points: 63 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dylbert Quote  Post ReplyReply Direct Link To This Post Topic: Heater not working
    Posted: 02-February-2009 at 17:44
Damn heater stopped working all of a sudden. The fans working but it blowing cold air, the engine is heating up fine, I checked the coolant level and it's fine, what should I check next?, oh it's an e36 by the way
Cheers,
Dylan.
E36 316i
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larzyh View Drop Down
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Joined: 25-February-2007
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Points: 633 		Post Options Post Options   Thanks (0) Thanks(0)   Quote larzyh Quote  Post ReplyReply Direct Link To This Post Posted: 02-February-2009 at 19:24

Thermostat and water-pump; well known trouble spots on E36's, and fortunately relatively cheap and straightforward to replace.

Good luck.

Edit: Bad timing, by the way!



Edited by larzyh
Larzyh.
Previously or currently, in the family: '77 E21 320, '78 E21 320, '79 E21 320, '87 E28 520i, '88 E30 325iC, '95 E34 525i, '98 E39 528i, '98 Z3 2.5, '98 E38 740iL, '95 E36 Compact, '99 E36 318iT, '02 E46 318iT, '96 E34 525tdsT, '98 E38 740iL...
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Points: 4000 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dergside Quote  Post ReplyReply Direct Link To This Post Posted: 02-February-2009 at 21:31
If the temp gauge is moving up to the centre of the gauge but you're not getting any heat then it sounds more likely that there is a fault in the heating system itself.  Does the car have air-con?
Now: BMW 523i SE '00, 318i SE - e91 '07, 325i Coupe '93.

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dylbert View Drop Down
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Points: 63 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dylbert Quote  Post ReplyReply Direct Link To This Post Posted: 03-February-2009 at 10:06

Don't think its the thermostat or pump. It has air-con.

Could it be a airlock? is there any way of bleeding the heating system?
Cheers,
Dylan.
E36 316i
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larzyh View Drop Down
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Points: 633 		Post Options Post Options   Thanks (0) Thanks(0)   Quote larzyh Quote  Post ReplyReply Direct Link To This Post Posted: 03-February-2009 at 10:17

An airlock would not happen spontaneously. Could be that the valves in or out of the heater matrix are not functioning properly. Do you have the electronic heating system or the rotary buttons? The air-con, per se, is unlikely to be implicated.

There is a bleed screw on the radiator housing but unless the system has been disturbed this should not be necessary.
Larzyh.
Previously or currently, in the family: '77 E21 320, '78 E21 320, '79 E21 320, '87 E28 520i, '88 E30 325iC, '95 E34 525i, '98 E39 528i, '98 Z3 2.5, '98 E38 740iL, '95 E36 Compact, '99 E36 318iT, '02 E46 318iT, '96 E34 525tdsT, '98 E38 740iL...
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ecooney View Drop Down
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Points: 20 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ecooney Quote  Post ReplyReply Direct Link To This Post Posted: 03-February-2009 at 11:42

Long shot but is the dial on the centre air vent turned to cold instead of hot?

 

 



Edited by ecooney


Current Car: E36 M3 Evolution Convertible

Previous Cars: BMW E36 Coupe

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xxcharlie27 View Drop Down
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Points: 14 		Post Options Post Options   Thanks (0) Thanks(0)   Quote xxcharlie27 Quote  Post ReplyReply Direct Link To This Post Posted: 09-February-2009 at 01:11

This might be worth a shot

I've just fix this similar problem with a E36 it was the electronic valve it's on the firewall at the back right ( the passanger side) hand corner of the engine it has two 1/4" pipes going to it and a 2 pin conection it had stopped opening & letting in the hot water
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Mike Ryan View Drop Down
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Points: 120 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike Ryan Quote  Post ReplyReply Direct Link To This Post Posted: 09-February-2009 at 18:18

Would agree with xxcharlie27. The original water valve was replaced under warranty where there was a complaint from owners of E36 models. Thermostat was replaced with a double disc thermostat first. If problem persisted the water valve was replaced with an improved version that is recognisable by having a "caulked" sealing cone.

Part Number for the water valve is PN 64 118 391 419 OR PN 64 118 375 792. Found this info in TIS manual, Seems problem developed from start of E36 production through to March 1996 fitted with M42, M43, M44, M50 and M52 engines. Go on ebay and get yourself a TIS manual. Its a bootleg copy on DVD. You wont regret it if you intend to hang onto beemers.    
Euro Builts are Better. Drive one and you directly support jobs in the Irish car component manufacturing industry.
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agaafear View Drop Down
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Points: 125 		Post Options Post Options   Thanks (0) Thanks(0)   Quote agaafear Quote  Post ReplyReply Direct Link To This Post Posted: 14-March-2009 at 13:05

This happened with an E36 I had and it was just the thermostat - it was stuck or something.  Was a quick fix and cheap.
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