Remove And Install DC/AC Converter Control Unit - AR54.21-P-1600GQ

MODEL 166 with CODE U80 (115 V socket in load compartment) 

Shows model 166.0 

Fig 1: Identifying DC/AC Converter Control Unit - Shows Model 166.0

Courtesy of MERCEDES-BENZ USA

Shown on model 166.8 

Fig 2: Identifying DC/AC Converter Control Unit - Shows Model 166.8

Courtesy of MERCEDES-BENZ USA

	Remove/install
	Risk of death  from touching live components with AC voltages over 30 V	Do not touch live parts. Persons who have electronic implants (e.g. cardiac pacemakers) must not perform any work on components conducting AC voltage greater than 30 V.	AS54.00-Z-0001-05A
1	Switch off ignition and remove transmitter key or KEYLESS-GO start/stop button from electronic ignition lock control unit	KEYLESS-GO start/stop button only present on vehicles with CODE 889 (Keyless-Go).
2	Remove rear seat backrest	MODEL 166.0 with CODE U80 (115 V socket in load compartment) 60% rear seat	AR91.12-P-1620GQ
3	Remove rear seat cushion	MODEL 166.0 with CODE U80 (115 V socket in load compartment) 60 % rear seat cushion	AR91.12-P-1020GQ
4	Remove rear door sill molding		AR68.30-P-4100GQ
		MODEL 166.0 with CODE U80 (115 V socket in load compartment) Driver side
5	Lift floor covering	MODEL 166.8 with CODE U80 (115 V socket in load compartment)	AR68.20-P-4800GQX
		MODEL 166.0 with CODE U80 (115 V socket in load compartment) MODEL 166.8 with CODE U80 (115 V socket in load compartment) Raise the lower floor covering.	AR68.20-P-4800GQ
6	Detach electrical connection from DC/AC converter control unit (N24/3)
	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
7.1	Remove screws	MODEL 166.0 with CODE U80 (115 V socket in load compartment)
7.2	Unscrew the nuts	MODEL 166.8 with CODE U80 (115 V socket in load compartment)
8	Remove DC/AC converter control unit (N24/3)
9	Install in the reverse order