12 63 520 Replacing master relay (M51, M52, M60, M62): Notes
Switch off ignition.
Unfasten screws.
Remove cover from electronics.
Tightening Torque, refer to 12 90 4AZ CONTROL UNIT BOX .
M52, M60, M62:
Remove relay (2).
NOTE:
If relay allocation does not coincide with pattern:
The relay with a line cross section greater than 2.5 mm2 is the DME master relay.
If in doubt, remove relay from socket and check whether there is an interrupt in the desired function.