How to tighten side reversing mirrors? (1976 530i)
Posted: Thu Nov 05, 2015 9:01 pm
The big chrome side mirrors need tightening, do I have to remove the door card to do this, or is there an easier way? Thx. 
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How to tighten side reversing mirrors? (1976 530i)
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Posted: Fri Nov 06, 2015 12:19 am
Posted: Fri Nov 06, 2015 10:38 am
Observe drawing in link below:
http://bmwfans.info/parts-catalog/E12/E ... de_mirror/
There should be a small screw (part# 7) on the base of the mirror, covered by the rubber seal #5. If you undo that screw, you should be able to take off the mirror and check the tightness of screws #3.
Some common issues are:
- small screw #7 is locked because of corrosion
- the head of small screw #7 is destroyed by previous mirror remove / tighten attempts
- small screw #7 itself might not be tightened enough
- support #4 is damaged on the contact surface to screw #7 so that it is impossible to get the mirror tight
- support #4 is loose on the door because the door metal is deformed.
http://bmwfans.info/parts-catalog/E12/E ... de_mirror/
There should be a small screw (part# 7) on the base of the mirror, covered by the rubber seal #5. If you undo that screw, you should be able to take off the mirror and check the tightness of screws #3.
Some common issues are:
- small screw #7 is locked because of corrosion
- the head of small screw #7 is destroyed by previous mirror remove / tighten attempts
- small screw #7 itself might not be tightened enough
- support #4 is damaged on the contact surface to screw #7 so that it is impossible to get the mirror tight
- support #4 is loose on the door because the door metal is deformed.
Posted: Thu Nov 26, 2015 5:19 am
A very belated thank you. I have now tightened it up 
Mirror "grub screw"?
Posted: Wed Dec 02, 2015 9:08 am
That can be a bitch to get out.It looks like it is no longer available. I suppose it might be possible to drill and tap the hole or maybe use liquid steel somehow. 