5x / 7x (depending on the model) loosen the TX25 screws on the front tank cover and remove the front tank cover
1x remove TX25 screw from ECU frame
Disconnect plug connection to secondary air pump (small plug to the right of the ECU)
Pull off left tank breather hose and slightly pull ECU together with plastic frame a bit to the front
Cut 2x cable ties which secures plastic frame together with engine wiring harness
Pull off 2x ECU connector (sliding mechanism)
Unclip ECU from plastic frame
ECU | BMW S1000XR (K49)
Tools:
TX25
TX30
side cutter
1x cable tie for installation
Procedure:
Remove seat
1x Remove the TX25 screw from the scuff guard behind the fuel tank and pull off the scuff guard to the rear
1x Release TX25 fixing screw (front inside over radiator) for painted left-side trim
Unclip the painted trim on the left and remove
Loosen 8x TX25 fixing screws of left unpainted panel
Release left turn signal cable
Lever out left unpainted panel and secure against folding down (eg with expander or wire)
Release connector below ECU
Unscrew 3x TX30 screw which connect ECU frame with vehicle frame
Pull the ECU frame slightly down and pull off the ECU connector (sliding mechanism, first remove the smaller one)
Release ECU from lower two clips of plastic frame and pull ECU out of frame
ECU | BMW R1200 (K5x)
Tools:
none
Procedure:
watch video (click on figure)
ECU | BMW R1250 (K5x)
Tools:
none
Procedure:
0. Remove seat
Unclip ECU from bracket on right side
Unclip ECU from bracket on rear left side and turn ECU to left side
Release the small ECU connector by pulling the locking devices in rear direction
Release the big ECU connector by pulling the locking devices in front direction
ECU | BMW R nineT
Tools:
TX25
TX30
TX45
Procedure:
watch video (click on figure)
ECU | BMW F750 GS (K80), BMW F850 GS (K81, K82), F900 R (K83), F900 XR (K84)
Tools:
TX25
TX40
side cutter
Socket wrench SW10
1x cable tie for installation
Procedure:
Remove seat
*Loosen 4x TX40 screw from luggage rack
*Loosen 4x TX40 screw from rear upper shell
Detach 2x TX25 from control unit carrier
Disconnect 1x cable tie
Unplug fuses
Disconnect the keyless antenna
Pull off the SAF control unit
Loosen 2x TX25 and remove battery holder
Detach the negative cable from the battery (SW10) and remove the battery (positive cable can remain if the battery is only tilted to the side as shown in the picture)
Disconnect 2x cable ties on the control unit carrier behind the battery, unclip the ECU from the carrier downwards and pull out the carrier backwards
Loosen the ECU connector and pull out ECU to the rear
*) only necessary if bike is equipped with this components
Video on the removal and installation of George Portz here
ECU | BMW K1600 GT/GTL (K48)
Tool:
TX25
Procedure:
Remove front right side panel (including the upper right panel on the right side of the fuel tank).
Loosen rubber band (A) and hang SAF control unit (suspension controler) to the side
Disconnect plug from control unit basic module (B) by pulling lock (a) in direction of arrow
Loosen 2x screw from control unit frame (b) with TX25
Pull coolant expansion tank (C) out of control unit frame and hang to the side. If there is an additional screw which hold the coolant expansion tank please remove it as well. Attention: Turn coolant tank so that no coolant leaks out.
Pull off both connector from engine control unit (E) by pulling on latch in arrow direction (e)
Lift frame of engine control unit (E) and remove engine control unit from vehicle by pulling in downwards direction. To get better access to ECU an its holding brackets, you can remove upper screw from its frame (b2) as well and manouver the ECU such that better access can be obtained
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