If anyone out there can help with this, it would be great.  I took
ownership of a 1990 200E last week and all is well with it apart from
the following
1.  The boot light - when I open the boot the light doesn't come on.
The bulb is fine (I replaced it) and the fuses are all fine. Should I
check the boot switch or is it likely to be wiring problem?
2.  The cabin light doesn't come on when the driver's door is open but
it does when the passenger door is open - is this another switch issue
or a wiring issue?
3.  The buzzer doesn't come on when the headlights are left on and the
driver door is opened, yet it works when the passenger door opens and
the headlights are left on - is this again related to the switch on
the driver's door.

Thanks again in advance for anyone that replies.  I'd like to get this
excellent machine back to as best condition as I can.

Adrian