Remove/install upper control arm

AR33.20-P-0500LF

Remove/install upper control arm

10.07.2020

Model

217

Model

222

Modification notes

11.07.2014

Screw/bolt, reinforcement to firewall/longitudinal member/reinforcement, center

MODEL 222

BA62.25-P-1001-01B

14.06.2016

Screw/bolt, reinforcement to firewall/longitudinal member/reinforcement, center

BA62.25-P-1001-01B

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

1

Suspension strut

3

Steering knuckle

6

Nut

2

Electrical connector

5

Upper transverse control arm

Pfeil

Cable tie

4

Nut

Shown on MODEL 222 with hybrid drive

7

Right reinforcement

 Danger

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

 Danger

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

Topical note

Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Topical note

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).

 Installation: 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

 Wheel control, hub

Number

Designation

Model 217

MODEL 222 except CODE Z07

BA33.20-P-1005-01T

Nut, transverse control arm to body

Stage 1

Nm

90

90

Stage 2

°

45

45

 Wheel control, hub

Number

Designation

MODEL 222 with CODE Z07

BA33.20-P-1005-01T

Nut, transverse control arm to body

Stage 1

Nm

90

Stage 2

°

45

 Firewall

Number

Designation

Model 222

BA62.25-P-1001-01B

Bolt, reinforcement to firewall/longitudinal member/reinforcement, center

M6

Nm

9

M8

Nm

30

 Firewall

Number

Designation

Model 222

BA62.25-P-1002-01B

Bolt, reinforcement to suspension strut support

M8

Nm

30

 Front axle level sensor

Number

Designation

Model 217

Model 222

BA82.10-P-1002-01D

Nut, connecting strut to upper transverse control arm

Nm

6

6