Aside from normal service filter changes and checking the level, you should have a tech look at this. It could be something easy, or difficult.
Good luck with this.

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Benzmac:
Donnie Drummonds
1981 280GE SWB
1987 16V
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
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