Remove/Install Head-Up Display - AR54.30-P-6400GQ

MODEL 166.0## ## as of 753710, 166.8## ## as of 751467, 292.### ## as of 035526 with CODE E75 (Head-up display) 

	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove
1	Switch off ignition and store transmitter key outside of transmission range (min. 2 m)
2	Detach cover (1) from lower part (3) and remove	Long wedge	Fig 1
3	Remove screws/bolts (2) and take out head-up display far enough until electrical connector at projector (4) is accessible
4	Release and disconnect electrical connector at projector (4)
5	Remove screws/bolts (5) and remove projector (4) from lower part (3)
	Install
6	Position projector (4) in lower part (3) and tighten screws/bolts (5)	Carefully tighten screws/bolts (5). So as to prevent over-tightening, which could cause damage to the lower part (3).
7	Connect electrical connector at projector (4) and position lower part (3) with projector (4) in the cutout of the instrument panel	Ensure that the wiring harness and the electrical connector are routed correctly. So as to prevent damage and noise while driving.
8	Tighten screws/bolts (2) until the raised edge of lower part (3) fits flush around the instrument panel (arrows)	A flush threaded connection is not required.
	Function test
9	Switch on ignition and check whether the disk of head-up display gets extended	The disk must remain open.
	Install
10.1	Clean bonding surfaces on upper part (1)	If lower part (3) is replaced. The bonding surfaces should be free of dust, oil, grease, wax and other adhesive components or dirt residues. Otherwise there may be adhesion problems. 3M cleaner S-131	*BR00.45-Z-1057-04A
10.2	Clean bonding surfaces on upper part (1) and lower part (3)	If lower part (3) is not replaced. The bonding surfaces should be free of dust, oil, grease, wax and other adhesive components or dirt residues. Otherwise there may be adhesion problems. 3M cleaner S-131	*BR00.45-Z-1057-04A
11	Stick adhesive strips to edge of lower part (3)	If lower part (3) is not replaced. Acrylic foam tape 5356 F	*BR00.45-Z-1126-02A
12	Release upper protective foil (6) of adhesive strips only at the edge and place the ends over the edge of lower part (3)
13	Position upper part (1) on lower part (3) and pull off upper protective foil (6) of adhesive strips outwards carefully, uniformly and smoothly
14	Firmly press upper part (1) on lower part (3)
15	Retract disk of head-up display again

Fig 1: Identifying Long Wedge (115 589 03 59 00)

Courtesy of MERCEDES-BENZ USA