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Old 06-24-2012, 09:28 PM   #25
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Originally Posted by TerraPhantm View Post
Yeah on the M3 LHD and RHD is identical. And in the UK, both sides use the aspherical mirror glass (considerably wider than the US passenger side mirror).

Even for sedans and non-M coupes, the internal motors are identical. Look it up on realOEM. So the only electrical difference will be the mirror modules inside the door panel. So no matter which mirrors you use, the right side mirror will tilt on LHD cars, left side on RHD cars. Your contact is mistaken.

To sum up: M3 mirror housings are identical between LHD and RHD. Glass is the same for all European M3s (aspherical)

Non-M mirrors are electrically identical between LHD and RHD, but theyre angled differently. This is more noticeable on the coupes. Again, glass is the same for LHD and RHD (both sides are aspherical)
But why would the parts number different? I got that the part numbers reflected that a driverside mirror in the USA for a LHD car will be manufactured at the factory to be a driverside mirror in terms of how the module controls the movement of the glass on the motor mount so that the point of view of the driver is taken into consideration.

Now I'm confused but what he said made sense.

I see how you are also correct though. See here:

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