Door mirror glass just dropped out

[Spud122]

My Passenger side one dropped out on Thursday driving home from work, lost on the dual carriageway.
No other damage to car, so luckily didn't hit bodywork.
Order a 9.99 replacement from ebay, will advise when it arrives.
Decided to check drivers side when i got home and it is also completely unstuck, was able to move it up and down with 1 finger.
Removed it, cleaned and refitted with double sided tape.

I do leave the mirror heating on all the time / auto, will switch off now and only put it on when needed.

   

[monsta]

The best approach is to get one from a breakers on eBay, you get a genuine part that way.  The aftermarket ones aren't great.

Both have mine have now done the same thing, both replaced for about £15 each with genuine items.

[mcmaddy]

My Passenger side one dropped out on Thursday driving home from work, lost on the dual carriageway.
No other damage to car, so luckily didn't hit bodywork.
Order a 9.99 replacement from ebay, will advise when it arrives.
Decided to check drivers side when i got home and it is also completely unstuck, was able to move it up and down with 1 finger.
Removed it, cleaned and refitted with double sided tape.

I do leave the mirror heating on all the time / auto, will switch off now and only put it on when needed.

 

doesn't matter if it's left on it switches itself off after a set time like the rear screen.

[Spud122]

My Passenger side one dropped out on Thursday driving home from work, lost on the dual carriageway.
No other damage to car, so luckily didn't hit bodywork.
Order a 9.99 replacement from ebay, will advise when it arrives.
Decided to check drivers side when i got home and it is also completely unstuck, was able to move it up and down with 1 finger.
Removed it, cleaned and refitted with double sided tape.

I do leave the mirror heating on all the time / auto, will switch off now and only put it on when needed.

 

doesn't matter if it's left on it switches itself off after a set time like the rear screen.

Yes, I understand it switches off (auto), but i assume as it comes on if temp is cold, the mirror heating is probably on much more than it needs to be?

The adhesive used from factory looks to be thin layer of silicone sealant type which has completely separated from the mirror glass i saved, there is no trace on the back at all. Whether it is affected by the heating i'm not sure, but certainly an easy step to take if it helps.   
 

[mcmaddy]

Maybe water is getting in and freezing and then when the element is turned on its coming away 🤷‍♂️

[monkeyhanger]

is there a common failure time going on here? Maybe on the 3rd service they should be rebonded?

Best not to leave your heated wing mirrors on for longer than you need, if not only to save the battery drain (which
I admit won't be huge) on an icy morning when the battery is taking a battering anyway with all your other ancillaries on.

Unless water is getting between the silicone and the glass with freeze/thaw contraction of the water going on, water will have nothing to do with it. Silicone doesn't last forever, and such a thin layer going through heat/cool cycles is going to make it even more likely to fail.

[rjwojcik]

Mine fell out today and smashed, drivers side.  New one ordered from autodoc, link here, hopefully it fits:

https://www.autodoc.co.uk/van-wezel/7655317

Mine's still being delivered, still not hit the UK.  Down to "Pandemic situation and quarantine all processes are delayed, including delivery. With regret we can not predict the exact time frame."

[jaceyboy]

Mines been ordered from ebay so will let you know how it fits....

[Gulfstream11]

Just a heads up fellas but you know its illegal to drive without mirror driverside?. Not in this climate you would be anyway. 

[Sootchucker]

What is it with Mirrors falling out ? I seen loads on forums and facebook of people complaining of this, but I don't remember it happening like this previously ?