Original Author Credit - Cooter
From - M3Forum
Dino's Add-on - This DIY is more geared towards production date cars up to 07/2004. For later models it's quite a lot simpler. Tilt the glass all the way forward so you can get your fingers behind it, apply even pressure towards you and pop the glass out. You won't need the wire extensions for later model cars. Connect the wires to the correct pins, then simply line up the tabs behind the glass, apply even pressure, and snap it into place. Enjoy your new mirror!
A lot of M3 owners have experienced the dreaded "rusting" that begins to spread throughout the sideview mirror glass. Here's a quick DIY to show you how easy it is to replace it yourself.
For this DIY, I replaced my driver's side glass. First, an example of the "rust" that spreads underneath the glass (top-right of the picture - pardon the dust, pollen season has officially begun):
First thing to do is to tilt the mirror up, which will expose a small tab underneath the mirror, circled in red:
Take a small screwdriver, and place it in the hole. For the driver's side, I pushed the tab to the right - towards the car, which didn't take much pressure at all, later model cars the glass just pops out:
This will unlock the retention clips that hold the mirror in place. After you've done this, start to slowly pull the mirror out of it's housing. You'll hear the adhesive begin to pull away as seen here:
My new mirror is a new version, which doesn't have an adhesive back and the electrical contacts have been moved to the other side:
The new mirror will come with an extension cable assembly that will allow you to plug into the existing cable, and move the cable to the other side of the mirror (Wires may need to be purchased separately double check before purchasing):
After you've connected it, simply align the mirror in place with the clips and push into place. That's it, enjoy your rust-free mirror!
From - M3Forum
Dino's Add-on - This DIY is more geared towards production date cars up to 07/2004. For later models it's quite a lot simpler. Tilt the glass all the way forward so you can get your fingers behind it, apply even pressure towards you and pop the glass out. You won't need the wire extensions for later model cars. Connect the wires to the correct pins, then simply line up the tabs behind the glass, apply even pressure, and snap it into place. Enjoy your new mirror!
A lot of M3 owners have experienced the dreaded "rusting" that begins to spread throughout the sideview mirror glass. Here's a quick DIY to show you how easy it is to replace it yourself.
For this DIY, I replaced my driver's side glass. First, an example of the "rust" that spreads underneath the glass (top-right of the picture - pardon the dust, pollen season has officially begun):
First thing to do is to tilt the mirror up, which will expose a small tab underneath the mirror, circled in red:
Take a small screwdriver, and place it in the hole. For the driver's side, I pushed the tab to the right - towards the car, which didn't take much pressure at all, later model cars the glass just pops out:
This will unlock the retention clips that hold the mirror in place. After you've done this, start to slowly pull the mirror out of it's housing. You'll hear the adhesive begin to pull away as seen here:
My new mirror is a new version, which doesn't have an adhesive back and the electrical contacts have been moved to the other side:
The new mirror will come with an extension cable assembly that will allow you to plug into the existing cable, and move the cable to the other side of the mirror (Wires may need to be purchased separately double check before purchasing):
After you've connected it, simply align the mirror in place with the clips and push into place. That's it, enjoy your rust-free mirror!
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