Hi there Just after a bit of advice on the tailgate lock of my B5 S4 F/L. The tailgate doesn't lock when the rest of the car is locked. The touch catches work fine and are not re-opening the tailgate as can happen, but the tailgate doesn't lock anymore... also when remote locking, the Vacuum pump can be heard over running for 10 secs or so (which suggests a leak). My main question is, does the Vacuum pump also operate the tailgate lock, or are these two separate problems. Many thanks in advance .