W203 Coupe automatic gearbox issue

[Bazz7]

Hi its my first post go easy on me pls. I bought w203 Coupe 220cdi auto with gearbox problem. It will change to Drive with easy but when driven off and stopped it will not go to Park like something blocking it. In fact and most important i cant put into Reverse. The only way is to switch ignition off and then it will go back to P.

Car has covered 108k and it drives ok except this issue. Is this something easy fix or very serious? Any advice will be appriciated. Thanks

 

[Ted]

Brake light switch?

 

[Bazz7]

I will check that tommoro. Someone suggested to check gear selector module? Any opinion? Thanks

 

[Bazz7]

P
If anyone have same issue changing a second hand Gear Selector did help!!! Closed

 

[holodram]

Bazz7
Did you change the selector yourself?
Is there a DIY on that?
Thanks