Remove/install balancing shaft - AR03.20-P-1000A

ENGINE 112 

Fig 1: Identifying Balancing Shaft Remove/Install Components

	Remove/Install
	Risk of death  cased by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the lifting platform and position the four support plates at the lifting platform support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
1	Remove engine	Model 463	AR01.10-P-2400CC
		Model 220 without 4MATIC	AR01.10-P-2400AB
		Model 220 with 4MATIC	AR01.10-P-2400IW
		Model 210 with 4MATIC	AR01.10-P-2400C
		Model 210 without 4MATIC, 208, 202, 129	AR01.10-P-2400CB
		Model 211	AR01.10-P-2400TC
		Model 203 without 4MATIC, 209	AR01.10-P-2400PV
		Model 203 with 4MATIC	AR01.10-P-2400PW
		Model 170	AR01.10-P-2400SV
		Model 163	AR01.10-P-2400CA
2.1	Remove automatic transmission	Model 463	AR27.10-P-0500BD
		Model 220 without 4MATIC	AR27.10-P-0500I
		Model 220 with 4MATIC	AR27.10-P-0500IW
		Model 210, 208, 202, 170, 129	AR27.10-P-0500B
		Model 211	AR27.10-P-0500T
		Model 203 without 4MATIC, 209	AR27.10-P-0500P
		Model 203 with 4MATIC	AR27.10-P-0500PW
2.2	Remove manual transmission	Model 210, 202, 129	AR26.10-P-0020A
		Model 211	AR26.10-P-0020T
		Model 203, 209	AR26.10-P-0020P
		Model 170	AR26.10-P-0020D
3	Remove flywheel		AR03.30-P-8001C
4	Remove end cover		AR01.40-P-8913B
		Installation:  Replace rear crankshaft radial sealing ring	AR03.20-P-3063B
5	Remove the cylinder head covers (15, 16)	Air cleaner mounted on vehicle.	AR01.20-P-5014B
		Air cleaner positioned at engine side.	AR01.20-P-5014BV
6	Position crankshaft to 40° after ignition TDC of cylinder 1	Engine must not be rotated backwards.	AR05.10-P-6858V
7	Take bottom part of oil pan (18) off top part of oil pan (19)	Model 163	AR01.45-P-7555V
		Model 203 without 4MATIC, 209, 211.061, 065061/065	AR01.45-P-7555PV
		Model 203 with 4MATIC	AR01.45-P-7555PW
		Model 463, 220 without 4MATIC, 210, 208, 202, 170, 129	AR01.45-P-7555VA
		Model 220 with 4MATIC	AR01.45-P-7555IW
8	Take top part of oil pan (19) off crankcase	Model 463	AR01.45-P-7500FG
		Model 220 without 4MATIC	AR01.45-P-7500I
		Model 220 with 4MATIC	AR01.45-P-7500IW
		Model 210 without 4MATIC	AR01.45-P-7500F
		Model 210 with 4MATIC	AR01.45-P-7500FA
		Model 211.061/065	AR01.45-P-7500TV
		Model 208, 202	AR01.45-P-7500FC
		Model 203 without 4MATIC, 209	AR01.45-P-7500PV
		Model 203 with 4MATIC	AR01.45-P-7500PW
		Model 170	AR01.45-P-7500SV
		Model 163	AR01.45-P-7500FB
		Model 129	AR01.45-P-7500FD
9	Take timing case cover (31) off crankcase	Do not damage cylinder head gaskets.
		Model 463	AR01.40-P-8000GV
		Model 220 210 without 4MATIC, 208, /129	AR01.40-P-8000B
		Model 203, 209, 211.061/065	AR01.40-P-8000PV
		Model 210 with 4MATIC	AR01.40-P-8000V
10	Remove position sensor camshaft (L5/1)		AR15.10-P-2000A
11	Remove right camshaft sprocket (27)		*BA05.20-P-1001-01B
		Locating plate	Fig 3
		Locating plate	Fig 4
		Open-end wrench	Fig 5
		Insertion tool	Fig 6
		Torque wrench	Fig 7
		Installation:  ↓
		Inspecting timing of engine	AR05.10-P-6858V
		↓ If necessary after checking:
		Set the basic position of camshafts	AR05.20-P-6020AU
12	Take off rear balancing weight (20)	Check stem and thread length of bolt, when exceeding maximum length the bolt must be replaced, otherwise there is risk of cracks and fracture.
		Balancing shaft can only be removed to the front.
		Fix rear weight at crankcase with a pin or suitable drift (Ø 8.40 to 8.55 mm) for this step.	Figure
			*BA03.20-P-1002-02A
13	Take off locking plate (29) at front of balancing shaft (28)		*BA03.20-P-1001-02A
14	Pull out balancing shaft (28) to the front	Installation:  When installing balancing shaft, pay attention to assignment of balancing shaft to engine.
	General information on assigning balancing shaft to engine		AH03.20-P-1000-01AV
15	Install in the reverse order
	Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns when working in engine during starting procedure	Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
16	Run engine and inspect for leaks
17	Inspect cooling system for leaks	Warm up the engine to operating temperature.
		All except Model 170, 203, 209	AR20.00-P-1010HA
		Model 170, 203, 209	AR20.00-P-1010P

BALANCING SHAFT

Number	Designation			Motor 112
BA03.20-P-1001-02A	Bolt of locking plate to crankcase	M7 x 16.5	Nm	15
BA03.20-P-1002-02A	Bolt of balancing weight to balancing shaft	1st stage	Nm	20
		Step 2	∠°	90
		Length	mm	≤ 50,7

CAMSHAFT

Number	Designation				Engine 112 except 112.951/976	Engine 112.951/ 976
BA05.20-P-1001-01B	Bolt of camshaft sprocket	M12x45	1st stage	Nm	50	50
			Step 2	∠°	90	90

Fig 2: Identifying External Torx Set (001 589 76 09 00)

Fig 3: Locating Plate (112 589 00 32 00)

Fig 4: Locating Plate (112 589 01 32 00)

Fig 5: Identifying Open-End Wrench (112 589 00 01 00)

Fig 6: Identifying Insertion Tool (112 589 01 03 00)

Fig 7: Identifying Torque Wrench (001 589 72 21 00)