Rear axle - oil change - AP35.00-P-3501A

MODEL 117, 156, 176, 246 with CODE M005 (4MATIC) 

Shown on model 117.302 

Fig 1: Differential, Filling Screw And Drain Screw - Shown On Model 117.302

Courtesy of MERCEDES-BENZ USA

	Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	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
	Preparatory activity
1	Lift vehicle on vehicle lift
			AR00.60-P-1000AK
		Vehicle must be horizontal. Otherwise, the differential (1) will not be filled correctly and an incorrect oil filling capacity can lead to leakage and damage! The automatic selector lever must be in position "N". The parking brake must not be applied.
	Clean
2	Clean area surrounding drain screw (3) and filling screw (2)
	Remove
3	Unscrew filling screw (2) and remove seal
4	Unscrew drain screw (3) and remove seal
	Draining
5	Drain oil from differential (1)
6	Turn both rear wheels five revolutions simultaneously in same direction of travel	The front wheels must remain stationary. Otherwise not all of the oil will be drained from the differential (1). The automatic selector lever must be in position "N". The parking brake must not be applied.
	Clean
7	Clean drain screw (3) as well as threaded hole in differential (1)
	Install
8	Tighten drain screw (3) with new seal	The seal of the drain screw (3) must be replaced. Otherwise, this may lead to leakage and damage. Ensure that the tightening torque is correct. Otherwise, damage may occur!
		Filling screw/drain screw to differential	*BA35.31-P-1003-02J
	Filling
9	Pour oil into differential (1) up to lower edge of filler hole	Filling capacity	*BF35.31-P-1001-01A
		Hand pump	Fig 2
	Clean
10	Clean filling screw (2) as well as filler hole in differential (1)
	Install
11	Tighten filling screw (2) with new seal	The seal of the filling screw (2) must be replaced. Otherwise, this may lead to leakage and damage. Ensure that the tightening torque is correct. Otherwise, damage may occur!
		Filling screw/drain screw to differential	*BA35.31-P-1003-02J
12	Lower vehicle with lifting platform
	Reset service data and perform function test
13	Connect diagnostic system
			AD00.00-P-2000-04A
14	Reset rear axle oil service data	The service data reset function can be called up in the diagnostic system as follows: Select "all-wheel drive transfer case" control unit (N45) → Select menu item "Adaptations" → Select menu item "Teach-in processes" → Select menu item "Control unit" → Select menu item "Reset oil service data".
15	Use diagnostic system to perform function test of component "All-wheel drive solenoid valve" (Y68/3) when driving	If after even 10 actuations a brief jolt is not perceptible. Perform operation steps 16 to 22, and then start again at operation step 13. When performing actuation, a brief jolt must be felt in the vehicle; this ensures that the entire differential (1) is correctly filled with oil. Otherwise, damage may occur!
16	Disconnect diagnostic system
	Remove
17	Lift vehicle on vehicle lift
			AR00.60-P-1000AK
		Vehicle must be horizontal. Otherwise, the differential (1) will not be filled correctly and an incorrect oil filling capacity can lead to leakage and damage!
18	Unscrew filling screw (2) and remove seal
	Check
19	Check if the oil level in the differential (1) is up to the lower edge of the filling hole	Filling capacity	*BF35.31-P-1001-01A
		Hand pump If the oil level does not reach the lower edge of the filling hole. ↓ Add oil to differential (1) up to lower edge of filling hole.	Fig 2
	Clean
20	Clean filling screw (2) as well as filler hole in differential (1)
	Install
21	Tighten filling screw (2) with new seal	The seal of the filling screw (2) must be replaced. Otherwise, this may lead to leakage and damage. Ensure that the tightening torque is correct. Otherwise, damage may occur!
		Filling screw/drain screw to differential	*BA35.31-P-1003-02J
	Finishing activity
22	Lower vehicle with lifting platform
			AR00.60-P-1000AK

Fig 2: Identifying Hand Pump (210 589 00 71 00)

Courtesy of MERCEDES-BENZ USA