86 560sl.

Symptoms:

My car would cut off occassionally for no reason, would not re-start until 15 -20 mins of cool down. Ended up replacing the fuel pump relay and it hasn't cut off since.

The factory alarm would trigger for no apparent reason while parked. Just goes off. Disconnnected the harness behind the glove box, end of alarm.

After installing the fuel pump relay, the A/C is dead. No compressor clicks, previously blew ice cold and the heater blower works fine. Tried another a/c relay, no luck.

I did notice that the fuel pump relay had one extra pin from the original. Checked and double checked the compatibility of the part-seems OK.

Any ideas? Would the alarm have any relation to the a/c?
Fuel relay to a/c?

Thanks.

JB

put the old parts back in and see if A/C Comes to life.

Thanks.
Jb