Problem Reports

Mercedes-Benz CL500

Report: Tandem Hydraulic Pumps May Leak From Either Section

Mercedes-Benz CL500 Problem

6 Reports

Model Years Affected: 1998, 1999, 2002, 2004

Average Mileage: 67,500 mi (57,000 mi - 83,000 mi)

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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Report #1

dem3, 2002 Mercedes-Benz CL500, 70,000 mi

Rookie
Had hydraulic pump changed several months ago due to rear left wheel base falling below driveable condition. Repalced pump Sovlved problem for 3 month at which point I stated to hear a rumble come from under side of car that could only be heard from inside the cabin. I initially feared transmission but within a day of noice starting I Noticed the left rear begin fall again.
When I took it back to mechanic he informed me that the hydraulic pump had gone bad and replaced it under warranty, in additionhe also changed The Resovoir filters which were clogged.
Unfortuantely the noise under car has not subsided and after a week of use the rear left has begun to fall again. Is there any special procedures that have to be considered when replacing pump & filters ?

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Report #2

kerav Shimon, 2002 Mercedes-Benz CL500, 57,000 mi

Rookie
Tandem Hydraulic Pump failing. Needs to be replaced along with the valve block according to the Mercedes Dealership. Estimated cost is $5700.00. Seems to be a common problem I've been told. Bummer.

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Report #3

Visitor, 2004 Mercedes-Benz CL500, 60,000 mi

leak, and i need help to fix!!! doubletgroup@gmail.com

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Report #4

Visitor, 1999 Mercedes-Benz CL500, 83,000 mi

leak in driveway and rear shocks not responding

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