Check rear axle differential oil level, correct if necessary - AR35.31-P-0520-03SX

MODIFICATION NOTES

21.6.11

Value modified: Filling capacity

Model 166
Model 204 except model 204.077/277 with code 471, P30
Model 207

REAR AXLE DIFFERENTIAL HOUSING

Number	Designation		Model 166
BA35.31-P-1001-02E	Oil filler screw, differential	Nm	50

DIFFERENTIAL HOUSING

Number	Designation		Model 204	Model 207	Model 212	Model 218
BA35.31-P-1002-02H	Oil filler screw, differential	Nm	50	50	50	50

DIFFERENTIAL HOUSING

Number	Designation		Model 216	Model 221
BA35.31-P-1002-02G	Oil filler screw, differential	Nm	50	50

DIFFERENTIAL

Number	Designation			Model 166	Model 204 except model 204.077/277/377 with code 471, P30
BF35.31-P-1001-01T	Filling capacity	Differential 187 FE, Ø 187 mm	Liters	0.95	0.95
			Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-07A
		Differential 200 FE, Ø 200 mm	Liters	1.1	1.1
			Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-07A
		Differential 215 FE, Ø 215 mm	Liters	1.2	1.2
			Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-07A

DIFFERENTIAL

Number	Designation			Model 204.077/277/377 with code 471, P30	Model 207
BF35.31-P-1001-01T	Filling capacity	Differential 187 FE, Ø 187 mm	Liters	-	0.95
			Sheet	-	BB00.40-P-0235-07A
		Differential 200 FE, Ø 200 mm	Liters	-	1.1
			Sheet	-	BB00.40-P-0235-07A
		Differential 215 FE, Ø 215 mm	Liters	1.2	1.2
			Sheet	BB00.40-P-0235-61 A	BB00.40-P-0235-07A

DIFFERENTIAL

Number	Designation			Model 212 except model 212.074/077/274/277 with code 471, P30	Model 212.074/077/274/277 with code 471, P30
BF35.31-P-1001-01T	Filling capacity	Differential 187 FE, Ø 187 mm	Liters	0.95	-
			Sheet	BB00.40-P-0235-07A
		Differential 200 FE, Ø 200 mm	Liters	1.1	-
			Sheet	BB00.40-P-0235-07A
		Differential 215 FE, Ø 215 mm	Liters	1.2	1.2
			Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-61A

DIFFERENTIAL

Number	Designation			Model 218 except model 218.374 with code 471, P30	Model 218.374 with code 471, P30
BF35.31-P-1001-01T	Filling capacity	Differential 187 FE, Ø 187 mm	Liters	-	-
			Sheet	-	-
		Differential 200 FE, Ø 200 mm	Liters	1.1	-
			Sheet	BB00.40-P-0235-07A
		Differential 215 FE, Ø 215 mm	Liters	1.2	1.2
			Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-61A

DIFFERENTIAL

Number	Designation			Model 216	Model 221
BF35.31-P-1001-01S	Filling capacity	Rear axle differential 200FE, 200 mm dia.	Liters	1.1	1.1
		Specifications for service products	Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-07A
		Rear axle differential 215FE, 215 mm dia.	Liters	1.2	1.2
		Specifications for service products	Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-07A
		Rear axle differential 240FE, 240 mm dia.	Liters	1.6	1.6
		Specifications for service products	Sheet	BB00.40-P-0235-07A	BB00.40-P-0235-07A
		Rear axle differential 240V, 240 mm dia.	Liters	-	1.9
		Specifications for service products	Sheet	-	BB00.40-P-0235-07A

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1061-01A	Sealant, Omnifit 100H (50 g)	A 002 989 23 71
BR00.45-Z-1046-04A	Loctite 7063 cleaning spray (150 ml)	A 001 986 71 71 10

Only carry out the oil level check at interior temperature and not on a rear axle center assembly which is at operating temperature. Otherwise, when the rear axle differential is at operating temperature, required oil could escape.

Clean area around oil filler screw (50 g).
Remove oil filler screw (50 g)
Replace oil filler screw (50g).
If necessary, collect any oil which runs out and allow to run out until the oil still only drips out of threaded hole.
Check oil level.
With the correct oil level the oil reaches up to the bottom edge of the threaded hole.

Fig 1: Identifying Oil Filler Screw
Courtesy of MERCEDES-BENZ USA
Clean new oil filler screw and threaded hole in rear axle differential using cleaning spray and a suitable rag.
The oil filler screw and threaded hole must be free from oil and grease.
Coat roughly one droplet of sealant on the second or third lower thread of the new oil filler screw.
Screw oil filler screw into rear axle center assembly immediately and tighten to specified tightening torque.

Fig 2: Coating New Oil Filler Screw
Courtesy of MERCEDES-BENZ USA