Central Locking B Class 2008

[Jonathan1969]

HI having got rid of my v low mileage but very troublesome W202 C200 I have now bought a Mercedes B170 and now the passenger door doesn't lock or open along with the other doors if i unlock or lock the car. Grateful for any advice on how to fix this?

Also, the silver trim just below the window on the outside is pealing off - any suggestions to what kind of glue i need to get - that will stand the weather and water etc

Thanks