Remove/Install Head Unit - AR82.85-P-1101ME

Model 167 With Code 548 (Connect 20 MID (NTG6)) 

Model 167 With Code 549 (Connect 20 HIGH (NTG6)) 

Fig 1: Head Unit Components Location - Model 167 With Code 548; 549

Courtesy of MERCEDES-BENZ USA

Topical note	Notes on avoiding damage to optical fibers during repair work		AH82.60-P-0001-05AK
Topical note	Notes on bolted connections with self tapping screws		AH00.00-P-0007-01SF
Topical note	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Perform commissioning of head unit (A26/17).	If the head unit (A26/17) is replaced.
			AD00.00-P-2000-06ME
2	Remove floor covering at front on front passenger side.		AR68.80-P-0008ME
3	Release front passenger seat electrical wiring harness from cover (3) (arrows).	Dismantling tool	Fig 2
4	Remove nuts (2).
5	Remove right lower air duct (1).
6	Fold up cover (3) using suitable means to secure it until the head unit (A26/17) is accessible.
7	Release and disconnect electrical connectors from head unit (A26/17).	The number of electrical connectors varies according to vehicle equipment.
8	Remove screws/bolts (4).
9	Remove head unit (A26/17).
10	Install in the reverse order
11	Calibrate augmented reality camera.	Model 167 with code 21U (video recording function (dashcam)), model 167 with code U19 (augmented reality video) If the head unit (A26/17) was replaced.
			AD00.00-P-2000-06ME
	000 588 11 21 00 Adjustment device		WS82.00-P-0151B
	000 588 00 23 00 Adjusting gauge		WS82.00-P-0028B

Fig 2: Identifying Dismantling Tool (000 589 95 63 00)

Courtesy of MERCEDES-BENZ USA