My 1995 S320 suddenly developed these problems – all at once

1 Central locking does not work with key or remote or inside lock switch
on console
2 When you open trunk the small lift handle does not pop out
3 When you open the front door ( or others) the foot lights do not come on
4 No rear seat light operate and no trunk light
5 When you turn on the rear reading lamp it turns on the front overhead
console lights adn not the reading lamp
6 When you turn the engine off the key buzzes without the door being open
7 Sometimes there is a stuttering sound from the starter when you start
the engine
8 The front center console light stay on after you manually turn them
off for a short period as if you had opened the door and closed it.
9 There is a clicking noise in the right glove box area sort of a relay
sound
10 The right front door is not closing very smoothly at the 2 normal
hold open areas and is a little noisy
Any ideas from anyone. My mechanic seems flustered.