Weird
Moderator: martauto
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e30_driver
- E30 Zone Newbie

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Removed, sorry
Last edited by e30_driver on Tue Dec 04, 2012 10:33 pm, edited 2 times in total.
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Grrrmachine
- E30 Zone Wiki / Team Member

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It's nothing to do with the heating system; it'll be either bad earths between the instrument cluster and the motor blowers, the brass nut on the back of the instrument cluster, or a failing heater blower resistor pack:
http://www.e30zone.net/e30zonewiki/inde ... nly_on_Max
http://www.e30zone.net/e30zonewiki/inde ... nly_on_Max
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
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e30_driver
- E30 Zone Newbie

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thanks. =]
will have a fiddle
will have a fiddle
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e30_driver
- E30 Zone Newbie

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- Joined: Wed Mar 14, 2012 11:00 pm
still dunno why it makes the temp gauge jump tho
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Grrrmachine
- E30 Zone Wiki / Team Member

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- Joined: Sat Feb 09, 2008 11:00 pm
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So have you checked the brass nut, or the earthing point, or the condition of the resistor pack?
'89 325i Touring | Touring Resto Thread | In-Dash Screen install
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Brianmoooore
- E30 Zone Team Member

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Jumping gauge is the brass nut.
Fan stopping is the thermal overload in the fan speed resistor tripping out, probably the fan motor bearings are desperate for their first taste of lubricant in well over twenty years.
Fan stopping is the thermal overload in the fan speed resistor tripping out, probably the fan motor bearings are desperate for their first taste of lubricant in well over twenty years.
