Hi,
I hope all is well.
My manual reads, When Un-locking the car it should blink 1 time.
And, when Locking the car is should blink 3 times.

My car lights blink 1 time at Unlocking, However, no lights at Locking the car.

Any Idea?
Maybe this is the reason, my windows do not Open and close via the remote, after holding it for few seconds.

Thanks.

1998 E320