Question: 001 545 13 32 - Seat belt warning relay/buzzer

[anghrist]

I have a question concerning this seat belt relay.

Since I have an early 1977 W123, I was wondering if this relay had a headlight warning buzzer or a key in & door open buzzer. Currently these convienience buzzers are nonexistant or nonfunctional in the old 240D and I would like to make them work, if possible.

I can get a new 001 545 12 32 relay, but I am unsure of the similarities/differences with respect to 001 545 13 32. Both are intended for use in the 240D.

Anyone have experience, or just own one of these?