Remove/install front spring - AR32.20-P-0200GZ

MODEL 164.1 except CODE (489) Airmatic (air suspension with level adjustment and adaptive damping system ADS) 

Fig 1: Identifying Front Spring Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Removing
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury  caused by pinching or crushing  when working on springs or spring bodies that are under tension	Use only approved tensioning devices; shield off hazard area if necessary. Inspect special tools for damage and proper operation (visual inspection). Wear protective gloves.	AS00.00-Z-0001-01A
	Notes on self-locking nuts and bolts	All models	AH00.00-N-0001-01A
1	Remove front suspension strut		AR32.25-P-1017GZ
	Disassemble/assemble
2	Clamp tensioning device (10) in vise and insert clamping plate (8, 9)	Tensioning device	Fig 2
		Clamping plates	Fig 3
3	Insert suspension strut into tensioning device (10)	When positioning the strut, attempt to get the maximum possible number of spring coils (7) in the spring clamp.
4	Clamp spring (7) until the upper spring cup (3) is relieved of load.
5	Remove cap (1)
6	Undo fastening nut (2) and remove shock absorber (11)	Counterhold piston rod using socket wrench.
			*BA32.25-P-1003-01G
		Socket wrench	Fig 4
7	Remove bellows (6) and stop damper (5)
8	Release tensioning device (10) and remove spring (7) with upper spring cup (3) and spring seat (4)
	Checking
9	Check shock absorber (11)	Check shock absorber (11) for leaks. A thin film of oil on the shock absorber (11) is acceptable. Replace shock absorber (11) if necessary.	AR32.25-P-0121A
10	Check bellows (6), stop damper (5) and spring seat (4) for signs of wear	Replace any components with oil contamination, cracks or deformation.
	Adjust
11	Assign spacer rings between spring (7) and spring seat (4)	Only if the vehicle level is outside the tolerance values. If the spring seat (4), spring (7) or shock absorber (11) are replaced, then remove all spacer rings.
12	Assemble in the reverse order	Assemble suspension strut such that the upper spring cup (3) is correctly assembled and positioned on the suspension strut.
	Install
13	Install front suspension strut		AR32.25-P-1017GZ
14	Check headlamp adjustment and correct if necessary	After installing new parts.
	Check and correct headlamp adjustment		AP82.10-P-8260GZ

Fig 2: Identifying Tensioning Device (203 589 01 31 00)

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Fig 3: Identifying Clamping Plates (169 589 02 63 00)

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Fig 4: Identifying Socket Wrench (164 589 00 10 00)

Courtesy of MERCEDES-BENZ USA