This morning I went to the garage and found a puddle of antifreeze on the floor. My 190e 1992 had sprung a leak. It appears to have come from the back of the motor near the tranny. There is a line there that leads to the firewall and goes into a smaller rather clear plastic line maked 1400 that goes into the firewall. It appears to have come from that line. I put it on ramps and let it run for a while and it did not leak? Any ideas?