Hi, Fach-(wo-)men! Does the low-pressure ZV with the R107 have a kind of (under-)pressure memory that can be leaked? Is only a guess, I’m not a screwdriver… So, the problem is this: If the car is driven, there is no problem with the central lock. If the car is only one or two days unused, then the ZV is “dead”. What to do? (except for MB buy everything new…. ) Servus and thank you in advance for any helpful tips! CAMLOT