Good evening, I have a problem since recently (cold outside temperatures) I hear a snorting or squeaking (such as rubber on rubber, or old mattress) sound from behind when crossing unevennesses (e.g. channel lid). With increasing outside temperatures or after a long motorway ride it is quieter or not audible anymore. Shock absorbers from outside are dry, no oil outlet can be seen. The original Saab sports suspension has been fitted with level control, mileage around 11 7,000 km. Does anyone know a possible or probable cause?