Hi, First post.
I have just acquired a '83 635 CSi - pretty sorted. No rust etc but I am starting my learning journey. I have been browsing but can't seem to find an answer to my question.
My heater seems to be a bit tempremental - it will blow hot but then seems to go cold (before coming hot again) - any hints as to where I should look to see where the problem might be?
Also - I can only get outside air through the vents above the heater controls/dash vents. Is this normal or have a got a connection missing somewhere behind the dash?
Thanks in advance for any nuggets.
Cheers'
Mark
Ventilation
Moderators: GRNSHRK, ron, bfons
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- Posts: 2
- Joined: Wed Nov 30, 2022 9:46 am
- Location: Sweden
Re: Ventilation
Thanks for the info! I will have a look
Re: Ventilation
Do a search and find a copy of your owner manual. Lots of explanations of how your car functions.
Good luck!
Scott
Good luck!
Scott
1988 M6
Re: Ventilation
Sounds like a bad heater control valve. They work well at idle and not while driving.
Consider replacing it with alternative solutions like the e46 one, the OEM and aftermarket of the e28/e24 ones are awful.
Consider replacing it with alternative solutions like the e46 one, the OEM and aftermarket of the e28/e24 ones are awful.
SHRKATK - Red 87' 635csi