Do I need a genuine BMW windscreen replacement for a 5 Series?

I looked at non-manufacturer approved 5 Series at a BMW dealer. The car was nice apart from a two-inch crack in the front windscreen and worn brake pads (the seller said that it can last for another 6 months). They are happy to replace the windscreen for a new one but not the genuine BMW. Does it make a difference to change non genuine one in the terms of rain/light sensors fitted and for the later resale price of the car?

Asked on 22 January 2017 by Marco

Answered by Honest John
Screen cracks are common in the 5 Series. It's a stressed screen that adds stiffness to the body, but is relatively thin. It's important to fit a proper a BMW screen to ensure everything works properly and also very important to check afterwards that there are no leaks by jetwashing the screen area.
Dear Honest John,

Please help me choose my next car. I would like it to have:
    Select a few terms below
Similar questions
Has BMW addressed the widespread previous issues with the current (latest) Mini models: 1 - Very thin windscreen Glass that cracks easily prompting replacement screen. 2- Timing chain rattles. Considering...
I am considering buying a Honda FR-V. I am slightly concerned about getting parts in case of a breakdown. Honda discontinued the FR-V in 2011. Would finding parts be a problem? I am planning to keep the...
I've recently purchased a new car from a main dealer and paid for dealer-fit front and rear parking sensors. A week after purchase, it comes to light that non-manufacturer approved sensors have been fitted...
Related models
Brilliant ride and handling, powerful and efficient diesel engines, upmarket interior, very safe, lots on the used market.
 

Value my car