I have a question about hydraulic on 560SEL 1989, I posted before about that problem but now the problem raised.

My 560SEL 1989 has a four wheel hydraulic system and an adjustment arm near the light switch. My problem is that when I leave the car for only one minute or more the car goes down; so I have to switch on the car for 5 minutes to take the normal level. What is the most likely causing the problem?

I have no hydraulic oil leakage and I use the original MB oil. The car is Euro specs.

Thank you : ))..

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380SE 1984 <------- Totaled by flipping accident
300SE 1988 <------- Sold
Volvo S70 2000 <---- 4 family
Opel Omega 2002 <-- 4 family
560SEC 1989 <------ Sold
560SEL 1990 <------ Sold
560SEL 1991 <------ 4 my mother
560SEL 1989 <------ Sold
600SEL 1992 <------ Current

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