Hello “Opelaner”, have recently again an annoying problem with the “sparing box without floor”. In the cold state of the engine (2.0 16V with currently 107 Tkm) nailed, or better said, that it is so audible even in the interior, without lowered windows. When the engine is warm, no sound can be heard. What could be the prob. ? Water pump, timing belts incl. tensioning rollers, crackers has been changed before 1 Tkm. Already `mal Danke and have a nice w Eek, Higgins 61.