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

Model 205 

Model 213 

Model 253 

Shown on model 205 except code 489 (AIRmatic), on the left side of vehicle 

Fig 1: Upper Control Arm Components Location - Model 213 (Shown on left side on model 205 with Code 489)

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Shown on model 205 except code 489 (AIRmatic) 

Courtesy of MERCEDES-BENZ USA

	Notes on handling, transport and storage of composite brake disks		AH42.10-P-9406-12LF
	Notes on threaded connections fastened using a tightening angle-based tightening process		AH00.00-P-0020-01A
	Notes on handling, transport and storage of ceramic brake disks		AH42.10-P-9406-13A
	Notes on self-locking nuts and bolts		AH00.00-N-0001-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Notes on repair work on suspension components		AH00.00-P-0100-01A
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
	Remove/install
1	Perform power disconnect of high-voltage on-board electrical system.	Model 205.012/047/147/212/247	AR54.10-P-1150LW
		Model 253.354/954	AR54.10-P-1150LVH
2	Disconnect ground line and positive line of on-board electrical system battery.	Model 205 (except 205.012/047/147/212/247), 213, 253 When removing the upper transverse control arm (2) on the front passenger side.	AR54.10-P-0005LW
3	Remove cover (5) or service flap (6).
4	Unclip coolant expansion reservoir (8).	When removing right upper transverse control arm (2).
5	Unscrew nuts (7) and remove motor fuse and relay module (K40/8) and place to one side with connected lines.	When removing the upper transverse control arm (2) on the driver's side.
6	Remove left or right front wheel.		AR40.10-P-1102A
7	Remove left or right front suspension strut.	Model 205 with code 489 (AIRMATIC) Model 213 with code 489 (AIRMATIC) Model 253 with code 489 (AIR BODY CONTROL)	AR32.25-P-1017LWL
8	Remove front level sensor retaining clamp (1) from upper transverse control arm (2).	If installed. Pay attention to installation position.
9	Unscrew nut (4).	Counterhold the ball head and do not use an impact wrench/driver. Otherwise the ball head or steering knuckle (3) may be damaged.
		Nut, steering knuckle to transverse contro arm	*BA33.20-P-1006-01U
10	Remove upper transverse control arm (2) from steering knuckle (3).
11	Secure steering knuckle (3) with a cable tie.
12	Unscrew nuts (9) from screws (10).	Nut, transverse control arm to body	*BA33.20-P-1005-01U
13	Remove bolts (10).
14	Remove upper transverse control arm (2).
	Check
15	Check elastomer bearings at upper transverse control arm (2) for wear and damage.	If problems occur, ↓ Replace upper transverse control arm (2).
16	Check upper ball joint at upper transverse control arm (2) for wear and damage.	If problems occur, ↓ Replace upper transverse control arm (2).
17	Check upper transverse control arm (2) for damage.	If problems occur, ↓ Replace upper transverse control arm (2).
18	Install in the reverse order