Replace sealing ring on drive pinion - AR33.30-P-0530SYZ

MODEL 204.08/09/28/29/98, 212.08/09/28/29, 218.39 

MODEL 216, 221 with 4MATIC 

Fig 1: Identifying Front Axle Transmission, Adjusting Disk, Collar Nut And Input Shaft

Courtesy of MERCEDES-BENZ USA

	Removing
		Absolute cleanliness is essential when working on the front axle transmission (1). Even minute dirt particles can prevent the front axle transmission (1) from functioning correctly
1	Detach propeller shaft from front axle transmission (1)	Model 216, 221	AR41.10-P-0070SYZ
		Model 204	AR41.10-P-0070CWX
		Model 212, 218	AR41.10-P-0070EWX
2	Drain oil out of front axle transmission (1)		*BA33.30-P-1008-03G
3	Detach collar nut (4m) from drive flange (4) using retainer wrench and remove adjusting disk (4a) from drive flange (4)	Counterhold retainer wrench using locking handle. A plastic wedge must be placed between the locking handle and front axle carrier in order to prevent damage. The retainer wrench is secured to the drive flange with just one bolt (4). The adjusting disk (4a) determines the bearing preload of the front axle transmission (1) and should therefore never be replaced. If the adjusting disk (4a) is lost, the front axle transmission (1) must be replaced.	*164589000500
4	Mark position of drive flange (4) relative to input shaft (5)
5	Pull off drive flange (4)		*203589023300
6	Pry radial sealing ring (2r) out of front axle transmission (1) using a suitable tool
7	Remove pinion housing		AR33.30-P-0469SYZ
	Install
8	Fill front axle transmission (1) with oil via opening in pinion housing	The front axle transmission (1) does not have an oil filler hole and must be filled via the opening in the pinion housing.
		Model 216, 221	*BF33.30-P-1001-03C
		Model 204, 212, 218	*BF33.30-P-1001-03F
	Universal hypoid gear oils (SAE 85 W-90)	Sheet 235.7	BB00.40-P-0235-07A
9	Install pinion housing		AR33.30-P-0469SYZ
10	Drive radial sealing ring into front axle transmission (1) using drift	Smear the sealing lip of the radial sealing ring with universal hypoid gear oil.
			*221589041500
	Universal hypoid gear oils (SAE 85 W-90)	Sheet 235.7	BB00.40-P-0235-07A
11	Align drive flange (4) with marking on input shaft (5) and push onto input shaft (5)
12	Push adjusting disk (4a) onto input shaft (5)	The adjusting disk (4a) determines the bearing preload of the front axle transmission (1) and should therefore never be replaced. If the adjusting disk (4a) is lost, the front axle transmission (1) must be replaced.
13	Replace collar nut (4m) and attach drive flange (4)	Counterhold retainer wrench using locking handle. A plastic wedge must be placed between the locking handle and front axle carrier in order to prevent damage. The retainer wrench is secured to the drive flange with just one bolt (4).	*BA33.30-P-1003-03G
			*164589000500
14	Attach propeller shaft to front axle transmission (1)	It is essential to observe the tightening torque. Failure to do so will result in noises and vibrations in the front axle transmission (1). Model 216, 221.0/1	AR41.10-P-0070SYZ
		Model 204	AR41.10-P-0070CWX
		Model 212, 218	AR41.10-P-0070EWX
15	Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running Perform engine test run and check front axle transmission (1) for leaks and that it is functioning correctly	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A

Fig 2: Identifying Retainer Wrench (164 589 00 05 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Drift (221 589 04 15 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Puller (203 589 02 33 00)

Courtesy of MERCEDES-BENZ USA