Remove/Install Operating Unit For Special Protection Functions - AR86.10-P-0158SG

Model 223 

with code X761 (Small control panel) 

with code Z07 (B7 armoring on special protection version) 

Courtesy of MERCEDES-BENZ USA

Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove rear panel trim.	Model 223 with code X761 (Small control panel) with code Z07 (B7 armoring on special protection version) with code Z21 (Fire extinguishing system)
			AR68.30-P-4750SG
2	Remove electrical fuse 5, special-purpose vehicles (F80/1f5), and electrical fuse 7, special-purpose vehicles (F80/1f7) from special-purpose vehicle fuse block (F80/1).	Model 223 with code X761 (Small control panel) with code Z07 (B7 armoring on special protection version) with code Z21 (Fire extinguishing system) Special-purpose vehicle fuse block (F80/1) is located in top right of trunk behind rear panel trim. This prevents the fire-extinguishing system from being triggered by mistake. The wiring diagram documentation for this model series can be found in DWD (Dynamic Wiring Diagram). https://ws-retailfactorv-dvna.mercedes-benz.com/start-aspu/
3	Remove insert (2).
4	Release spring (3) at operating unit (1).
5	Release operating unit (1), as shown, using extraction hook (5) upward out of stowage compartment and lift until electrical connectors (4) are accessible.	Extraction hook	Fig 1
6	Release and disconnect electrical connectors (4) and take out operating unit (1).
7	Install in the reverse order.

Fig 1: Identifying Extraction Hook (140 589 02 33 00)

Courtesy of MERCEDES-BENZ USA