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

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 

1. Fill torque converter half-full with automatic transmission fluid.
2. Insert flushing mandrel (063) in the torque converter and drive with a hand drill at low speed for approx. 2 minutes.
3. 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 

4. 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.

5. 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.