Identification 5L40E (M82), 5L50E (M22) - direct clutch (1999-up), 2nd coast (1999-2001) - 4L40E - direct clutch
Exedy/Dynax single sided friction disc - supplier info: thickness 0,063" / 1,60 mm - 36 external teeth - outer diameter 7,071" / 179,6 mm - inner diameter 6,102" / 155 mm - grey friction material - grooved - 1999-up (2nd coast clutch 1999-2001 only)
During the end of 2001 and beginning 2002 the friction disc for 2nd coast was changed from O-FRD-5L40E-DC/2CO-ET (36 teeth) to O-FRD-5L40E-2CO-ET (6 teeth) - as not all vehicles / transmissions were changed at the same date, please check carefully for vehicles/transmissions from that period which friction disc is required for your job.
The friction disc for the direct clutch remained the same as far as we know.
4L40E uses 4 of these discs in direct clutch - 4L40E does not have a 2nd coast clutch 5L40E, 5L50E use 3 of these discs in 2nd coast clutch and 4 in direct clutch (BMW X5 3,0l Diesel uses 5 pcs. in direct clutch)
direct clutch (4L40E and 5L40E, 5L50E), 2nd coast (5L40E, 5L50E)