Case-Mounted Coolers
Case-mounted transmission-fluid coolers that are used by Volkswagen and other manufacturers are effective at warming and cooling the transmission fluid. The 01M family, 09A and some 09G transmissions use a case-mounted cooler.

Case-mounted transmission-fluid coolers that are used by Volkswagen and other manufacturers are effective at warming and cooling the transmission fluid. The 01M family, 09A and some 09G transmissions use a case-mounted cooler.