Remove/install front wheel hub - AR33.20-P-0310SX

MODEL 221 except CODE (Z07) Top protection without 4MATIC

MODEL 216

without 4MATIC

MODEL 212 (except 212.08/09/28/29)

MODEL 218 (except 218.39)

Fig 1: Identifying Front Wheel Hub Components

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

27.9.10

Value changed: Bolt, brake cover plate to steering knuckle or hub/rotor assembly, M6

*BA42.10-P-1003-06H

	Remove/install
1	Remove front wheel	Model 216, 221	AP40.10-P-4050SX
		Model 212, 218	AP40.10-P-4050EW
2	Remove brake disk (1)	Model 216, 221	AR42.10-P-0220SX
		Model 212 with divided brake caliper support	AR42.10-P-0225EV
		Model 212 with undivided brake caliper support	AR42.10-P-0225EW
		Model 212 (except 212.077/277) with fixed-caliper brake	AR42.10-P-0225EWF
		Model 212.077/277 without code (B07) Ceramic brake system Model 218.374 without code (B07) Ceramic brake system	AR42.10-P-0225CMG
		Model 212.077/277 with code (B07) Ceramic brake system Model 218.374 with code (B07) Ceramic brake system	AR42.10-P-0225QQ
		Model 218 (except 218.374)	AR42.10-P-0220EL
3	Pull off hub cap (2) with removal and installation tool (01)	Removal and installation tool	*116589223300
4	Loosen hexagon socket head screw (3a) and remove clamping nut (3)	Model 216, 221	*BA33.20-P-1001-01M
		Model 212	*BA33.20-P-1001-01O
		Model 218	*BA33.20-P-1001-01Q
5	Remove outer tapered roller bearing (4)
6	Detach front wheel hub (5) from steering knuckle spindle (6a)	If front wheel hub (5) is firmly attached: ↓ Pull off front wheel hub (5).	AR33.20-P-0310-01TX
		Impact extractor	*201589103300
		Puller	*001589503300
		Clamping pliers	*201589013400
7	Replace radial shaft seal (7)	When reusing front wheel hub (5).	AR33.20-P-0310-03SX
		Insertion tool	*203589024300
	Check
8	Check brake cover plate (8) for damage	Replace if necessary.
		Model 216, 221	*BA42.10-P-1003-06G
		Model 212, 218	*BA42.10-P-1003-06H
9	Check steering knuckle spindle (6a) for discoloration and wear on bearing seats	Discoloration can occur for example through heat buildup due to incorrectly adjusted bearing play, if necessary: Replace steering knuckle (6):
		Model 216, 221	AR33.25-P-0400SX
		Model 212, 218	AR33.25-P-0400EW
10	Check surface (arrow) of radial shaft sealing ring (7) on steering knuckle spindle (6a)	Check for scoring and galling. If there is noticeable scoring: ↓ Replace steering knuckle (6):
		Model 216, 221	AR33.25-P-0400SX
		Model 212, 218	AR33.25-P-0400EW
11	Check threaded holes of wheel bolts in front wheel hub (5)	If damaged, replace front wheel hub (5).
12	Check inner tapered roller bearing, outer tapered roller bearing (4) and bearing races	If damaged, replace front wheel hub (5).	AR33.20-P-0310-02TX
13	Install in the reverse order
14	Adjust wheel bearing play		AR33.20-P-0300SX
15	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 Operate the brake pedal several times until Operate the brake pedal several times until brake pads make contact with the brake disks (1)	Before starting engine, actuate brake pedal several times until the pressure is built up and maintained in the brake system. Model 221.095/195: Operate brake pedal 10-times quickly and fully depressed. Model 212, 216, 218, 221 (except 221.095/195): Press brake pedal several times in succession until a firm resistance is noticeable.	AS42.50-Z-0002-01A

WHEEL LOCATION, HUB

Number	Designation		Model 216 without 4MATIC	Model 221.00/02/05/07/09/10/12/15/17/19 without 4MATIC without code Z07/Z07+Z19
BA33.20-P-1001-01M	Bolt for clamp nut used to adjust front-axle wheel bearing play	Nm	11	11

WHEEL LOCATION, HUB

Number	Designation		Model 221.09/19 without 4MATIC without code Z07
BA33.20-P-1001-01M	Bolt for clamp nut used to adjust front-axle wheel bearing play	Nm	11

WHEEL LOCATION, HUB

Number	Designation		Model 212 except 4-MATIC
BA33.20-P-1001-01O	Screw for clamp nut to adjust front wheel bearing end float	Nm	11

WHEEL LOCATION, HUB

Number	Designation		Model 218 except 4MATIC
BA33.20-P-1001-01Q	Screw for clamp nut to adjust front wheel bearing end float	Nm	11

BRAKE DISCS, BRAKE COVER PLATE

Number	Designation			Model 216	Model 221
BA42.10-P-1003-06G	Bolt brake cover plate to steering knuckle or wheel carrier	M6	Nm	14	14
		M8	Nm	18	18

BRAKE DISCS, BRAKE COVER PLATE

Number	Designation			Model 212	Model 218
BA42.10-P-1003-06H	Bolt brake cover plate to steering knuckle or wheel carrier	M6	Nm	14	14
		M8	Nm	18	18

Fig 2: Identifying Impact Extractor (201 589 10 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Puller (001 589 50 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Chuck (201 589 01 34 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Removal And Installation Tool (116 589 22 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 6: Identifying Insertion Tool (203 589 02 43 00)

Courtesy of MERCEDES-BENZ USA