razeldazel

Had pse pump replaced by dealer, now when raising and lowering roof PSE pump or roof pump which sit on top of pse pump is noisy, don't remember hearing this noise before having new pse pump installed at mb dealership.
noise sound like there is something operating at very high pressure,
my car is a 2007 SL 550..............does any one hear this sound when lowering and raising roof thanks for reply frank