I just got my 1989 635 back on the road, it seems like the heater is on all the time, the fan switch (and fan) work great.
Any help would be greatly appreciated, and if anyone who replies can send me a email ([email protected]) that would be helpful also.
Thanks for everyone help.
Eric
Heater on all the time
Moderators: GRNSHRK, ron, bfons
Re: Heater on all the time
Heater valve (in engine compartment, on firewall) isn’t closing.
Re: Heater on all the time
OK, thanks for the response, is this (Picture) the valve?
Is there a way to manually close it?
What is the fix for it not closing?
Thanks for your help
Eric
Is there a way to manually close it?
What is the fix for it not closing?
Thanks for your help
Eric
- 86_6series
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- Joined: Mon Apr 02, 2007 10:08 pm
- Location: West Nyack, NY
Re: Heater on all the time
When mine failed, I temporarily connected the incoming hose to valve with
an elbow nipple of the outgoing hose to the evaporator.
Added 4 days later after thinking what I posted.
I did this in the winter, when I needed some heat.
So, If you want to temporarily stop the heat --- cap the hose to the valve.
This is how old geezers function. 4 days late and 10 dollars short.
Bob V
an elbow nipple of the outgoing hose to the evaporator.
Added 4 days later after thinking what I posted.
I did this in the winter, when I needed some heat.
So, If you want to temporarily stop the heat --- cap the hose to the valve.
This is how old geezers function. 4 days late and 10 dollars short.
Bob V
86-635CSi
96-MB C220 SOLD
98-740i
71-Continental MK3
96-MB C220 SOLD
98-740i
71-Continental MK3
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- Posts: 523
- Joined: Mon Oct 30, 2006 8:23 pm
- Location: San Mateo, CA just South of San Francisco
Re: Heater on all the time
Are you referring to heat coming through the firewall or is it coming out of your vents? If it's the firewall, the rubber grommet must have popped out. During the evening, shine a light onto the firewall in the engine compartment (drivers side). Look inside under the drivers side and if you see light coming through a hole, that's the missing grommet. Good luckEricjump wrote: ↑Wed Aug 24, 2022 7:18 pm I just got my 1989 635 back on the road, it seems like the heater is on all the time, the fan switch (and fan) work great.
Any help would be greatly appreciated, and if anyone who replies can send me a email ([email protected]) that would be helpful also.
Thanks for everyone help.
Eric
Tommy
1989 635 CSI (Second owner since Jun 1995, driven daily and retired in 2013 with 295k to occasional driving)
2011 335D (Daily driver) with 103,550
1989 635 CSI (Second owner since Jun 1995, driven daily and retired in 2013 with 295k to occasional driving)
2011 335D (Daily driver) with 103,550