Flushing out oil cooler with oil cooler pipe and torque converter - AR27.20-P-0500-02A

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

If transmission oil is burnt or interspersed with lining abrasion

Fig 1: Identifying Drive Shaft (116 589 00 15 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

A Flushing out torque converter

Fill torque converter half-full with automatic transmission fluid.
Insert flushing mandrel (063) in the torque converter and drive with a hand drill at low speed for approx. 2 minutes.
Drain ATF oil through a clean cloth via the drain plug (2) and allow the oil to drip out.

Repeat flushing process 2-4 times until the automatic transmission fluid runs out clean. If there are metal chips in the cloth after flushing out, replace the torque converter.

Fig 3: Identifying Flushing Out Torque Converter
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

B Flushing out oil cooler with oil cooler pipes

Screw oil cooler pipe (49) onto the hand pump (064) and flush out the oil cooler pipe as well as the oil cooler with automatic transmission fluid.

Ensure that the transmission fluid flows freely.
Then blow out the oil cooler and oil cooler pipes thoroughly with compressed-air.

Fig 4: Identifying Out Oil Cooler And Oil Cooler Pipes
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.