I have a leaking 1978 W123 280 E and thought it was the front windscreen but it is not. I am wondering where I should look next. The windscreen rubber was a waste of $200:00 (australian) Any help would be much appreciated.
While in the process of looking for this leak I took off the plastic guards behind the front wheels under the guards and found a vacuum tank with a disconnected line. The c/Locking was working o.k. Could it have something to do with the A/Con.