Tandem Hydraulic Pumps May Leak From Either Section on Mercedes-Benz S420

Some models have tandem hydraulic pumps—one section for power steering and the other for suspension adjustment. These pumps are prone to leakage from either section.

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Average mileage: (–)
6 model years affected: 1994, 1995, 1996, 1997, more1998, 1999
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