The owner of a E85 Z4 has the auto-dim mirror with the half tide mark of a failing glass cell. He has priced a complete new mirror. It's expensive. He has also found the Mirrorjohn glass cell replacement and DIY instructions. It's a lot cheaper and looks relatively easy to do.
Has anyone done the replacement or have any experience with the Mirrorjohn products?
Has anyone done the replacement or have any experience with the Mirrorjohn products?