Remove/install front wheel hub

AR33.20-P-0310I

Remove/install front wheel hub

30.10.08

8.6.05

Filling capacity, hub (total filling quantity)

Model 211

*BF33.20-P-1001-01A

Filling capacity, hub (total filling quantity)

Model 215

*BF33.20-P-1001-01A

Filling capacity, hub (total filling quantity)

Model 219

*BF33.20-P-1001-01A

Filling capacity, hub (total filling quantity)

Model 220

*BF33.20-P-1001-01A

Filling capacity, hub (total filling quantity)

Model 230

*BF33.20-P-1001-01A

 

Remove/install

Danger!

Risk of injury caused by body parts being jammed or crushed. Risk of injury to skin and eyes caused by brake fluid spraying out at high pressure when working on the SBC brake system

Deactivate SBC brake system using STAR DIAGNOSIS.

AS42.46-Z-0001-01A



When working on the front-end assembly, be careful not to scratch, mark or notch the surfaces of aluminum parts. Otherwise the service life of the parts will be affected



Notes on self-locking nuts and bolts

AH00.00-N-0001-01A

Installation

Only tighten nuts and bolts of chassis components when vehicle is in a ready-to-drive condition.

1

Deactivate SBC brake system using STAR DIAGNOSIS.

Vehicles with Sensotronic Brake Control (SBC)

 The following steps should be run through in STAR DIAGNOSIS:

Select menu item "SBC Sensotronic Brake Control"/"Deactivate 'SBC' system".

Then process all the individual steps from top to bottom.

2

Remove front wheel



Remove/install wheels

AP40.10-P-4050Z

3

Remove brake disc

Model 215, 220

AR42.10-P-0220I

Model 211, 230

AR42.10-P-0220R

4

Pull off hub cap (9e)



*116589223300

5

Undo hexagon socket head screw (9i), remove clamp nut (9d) and remove outer tapered roller bearing (9m)

 Installation: Adjust wheel bearing play.

Model 215, 220 (except 220.08 /18)

AR33.20-P-0300A

Model 211 (except 211.08 /09 /28 /29), 230

AR33.20-P-0300TX

6

Pull off front wheel hub cover (9).

 If the front wheel hub (9) is seized, detach the front wheel hub (9) using a slide hammer puller (023).

AR33.20-P-0310-01A

 Installation: Coat the radial sealing ring with grease and, if necessary, pack the space between the lip and outer tapered roller bearing (9m) with grease. Push the front wheel hub (9) with inner tapered roller bearing and radial sealing ring onto the steering knuckle spindle (5a).

 Installation: Fill the front wheel hub (9) with grease.



*201589103300



*001589503300



*201589013400



*BF33.20-P-1001-01A



Check

7

Check brake cover plate (35)

Replace if necessary.

 Installation: When using a new brake cover plate (35), ensure that the rubber grommet that seals the wheelspeed sensor socket is pushed onto the wheelspeed sensor.

8

Check steering knuckle spindle (5a) for discoloration and wear, and check bearing surface of radial sealing ring

 Discoloration can be caused by the excessive heat that can result from incorrect bearing adjustment: 

Replace stub axle.

Model 211

AR33.25-P-0400T

Model 220.8

AR33.25-P-0400MP

Model 220 with code (979) Special protection version, code (Z07) top protection

AR33.25-P-0400MB

Model 215, 230 and 220 without special protection version, top protection

AR33.25-P-0400I

9

Check front wheel hub (9)

 Check tapped holes and rotor teeth for damage, and if necessary: 

Install new front wheel hub (9).

10

Check the lateral and radial runout of the front wheel hub (9)

Permissible lateral runout

*BE33.20-P-1004-01A

Permissible radial runout

*BE33.20-P-1005-01A

If permitted measurements are exceeded: 

Install new front wheel hub (9).

11

Inspecting tapered roller bearing and bearing races

 Damaged bearings cannot be replaced; if necessary: 

AR33.20-P-0310-02I

Install new front wheel hub (9).

12

Install in the reverse order

13.1

Activate SBC brake system using STAR DIAGNOSIS

Vehicles with Sensotronic Brake Control (SBC)

 The following steps should be run through in STAR DIAGNOSIS:

Select "Initial startup following repair"/"Replacement of brake disks" menu item.

Then process all the individual steps from top to bottom.

Danger!

Risk of accident when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work

Depress brake pedal several times before operating vehicle until pressure is built up and maintained in the brake system

AS42.50-Z-0002-01A

13.2

Push down brake pedal several times

Vehicles without Sensotronic Brake Control (SBC)

Number

Designation

Model
215

Model
220

Model
230

BE33.20-P-1004-01A

Front wheel hub flange lateral runout

mm

0.03

0.03

0.03

BE33.20-P-1005-01A

Radial runout on disk wheel alignment fitting of front wheel hub

mm

0.05

0.05

0.05

Number

Designation

Model 211

BE33.20-P-1004-01A

Front wheel hub flange lateral runout

mm

0.03

BE33.20-P-1005-01A

Radial runout on disk wheel alignment fitting of front wheel hub

mm

0.05

Number

Designation

Model 211

Model 215

BF33.20-P-1001-01A

Filling capacity

Hub cover

g

15

15

Hub (total capacity)

g

80

95

Specifications for Operating Fluids

Sheet

BB00.40-P-0265-01A

BB00.40-P-0265-01A

Number

Designation

Model 220

Model 230

BF33.20-P-1001-01A

Filling capacity

Hub cover

g

15

15

Hub (total capacity)

g

95

80

Specifications for Operating Fluids

Sheet

BB00.40-P-0265-01A

BB00.40-P-0265-01A