Remove/Install Front Upper Control Arm - AR33.20-P-0500LF

Model 217 

Model 222 

Fig 1: Upper Control Arm Components Location - Model 222 (Shown With Code 487)

Courtesy of MERCEDES-BENZ USA

Shown on MODEL 222 with CODE 487 (Active Body Control (ABC)) 

Courtesy of MERCEDES-BENZ USA

Shown on MODEL 222 with hybrid drive 

Courtesy of MERCEDES-BENZ USA

	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of death  when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.	AS00.00-Z-0035-01A
Notice	Notes on self-locking nuts and bolts		AH00.00-P-0001-01KOA
Notice	General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment		AH00.00-Z-0300-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Remove/install
1	Perform disable for the high-voltage on-board electrical system	Model 222.004/057/104/157/163 When removing the right upper transverse control arm (5).
			AR54.10-P-1150LF
2	Remove corresponding front suspension strut (1)	Model 217 with code 487 (Active Body Control (ABC)) Model 222 with code 487 (Active Body Control (ABC))	AR32.25-P-1017LFA
		Model 217 except code 487 (Active Body Control (ABC)) Model 222 except code 487 (Active Body Control (ABC))	AR32.25-P-1017LFB
3	Detach electrical connection (2) from front level sensor
4	Secure steering knuckle (3) against folding down	Cable ties (arrow) can be used.
5	Remove support from working area and lower vehicle	Do not lower vehicle too far.
6	Remove right reinforcement (7)	Model 222.004/057/104/157/163 When removing the right upper transverse control arm (5). Tighten bolts only when in ready-to-drive condition.
		Bolt, reinforcement to firewall/longitudinal member/reinforcement, center	*BA62.25-P-1001-01B
		Bolt, reinforcement to suspension strut support	*BA62.25-P-1002-01B
7	Remove corresponding front engine compartment cover
8	Unscrew nuts (4) on corresponding side of vehicle	Nut, transverse control arm to body	*BA33.20-P-1005-01T
9	Pull out bolts and remove upper transverse control arm (5) while doing so
10	Unscrew nut (6) and remove front level sensor with bracket from upper transverse control arm (5)	When replacing upper transverse control arm (5).
		Pay attention to installation position.
		Nut, connecting strut to upper transverse control arm	*BA82.10-P-1002-01D
11	Check elastomer bearing, ball-and-socket-type joint and dust boot on upper transverse control arm (5)	When reinstalling upper transverse control arm (5). If wear or damage present ↓ Replace upper transverse control arm (5)
12	Install in the reverse order