Remove screws (2, see fig. 5.186) and remove the cover (1) control electronics compartment.
Note. The sealing screws in the holder must only be removed when removing the wiring harness.
Unlock and disconnect the loops on the DME and Valvetronic control units. Remove the Valvetronic ECU and integrated power module. Raise the power supply module, unlock and disconnect the loop on the bottom side. Remove ECU. Unlock and disconnect the AL from the fan of the control electronics compartment.
Unlock and disconnect the relay. Loosen the screws on the computer bracket and remove the bracket towards the top. Remove bolts (arrows, fig. 5.193) and remove the fan (1) electronics compartment in the direction of the arrow.
When installing the fan, make sure that the cover snaps into place. Check the functioning of the DME system and erase the information from the fault memory.