Remove/install rear spring - AR32.20-P-0230GZ

MODEL 164, 166, 251 except CODE (489) AIRmatic (air suspension with level adjustment and adaptive damping system ADS) 

Shows model 164 

Fig 1: Identifying Rear Spring Remove/Install Components - Shown On Model 164

Courtesy of MERCEDES-BENZ USA

Shows model 164 

Fig 2: Identifying Rear Spring Remove/Install Components - Shown On Model 164

Courtesy of MERCEDES-BENZ USA

Shows model 164 

Fig 3: Identifying Rear Spring Remove/Install Components - Shown On Model 164

Courtesy of MERCEDES-BENZ USA

	Remove/install
	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
		While working on the rear axle care must be taken to ensure that the surfaces of aluminum components do not get any scratches, cracks and notches. Otherwise the service life of the of the parts will be reduced.
1	Detach complete wheel	Model 164	AP40.10-P-4050Z
		Model 166	AP40.10-P-4050EW
		Model 251	AP40.10-P-4050RT
2	Mark installation position of all detachable parts of the rear spring (1)	Mark all detachable parts in color relative to each other, to body and to the lower control arm (2).
3	Process closed lower spring retainer (5a)	Vehicles with closed lower spring retainer (5a) Break bars out of closed lower spring retainer (5a) and smooth breaking edges in order to insert tensioning device (3a).
			Fig 7
4	Insert upper clamping plate (3b), lower clamping plate (3c) and tensioning device (3a)	Insert upper clamping plate (3b) and lower clamping plate (3c) so that as many rear axle spring coils (1) as possible are clamped.
			Fig 7
		Model 164, model 166 without code (845) 3rd seat row folding down electrically, model 251 up to model year (MY) 2009	Fig 4
		Model 166 with code (845) 3rd seat row folding down electrically	Fig 6
		Model 251 as of MY 2010 with vehicle identification number (VIN) as of A101426	Fig 5
5	Clamp and remove rear spring (1)	The tensioning device (3a) must not be tensioned or released using a pneumatically or electrically powered tool. Damage will occur otherwise. The tab on the punched lower spring retainer (5b) must latch into the groove in the lower control arm (2).
6	Release tension on rear spring (1) and clamp new rear spring (1)	When replacing rear spring (1) Only replace rear springs (1) in pairs.
	Checking
7	Remove all detachable parts and check	Replace closed lower spring retainer (5a) with punched lower spring retainer (5b). Check punched lower spring retainer (5b), upper spring retainer (4), rubber insert (7) and rubber boot (10) for signs of wear and damage, replace if necessary.
8	Adjust vehicle level	Model 164, 251, if necessary
		Model 166 after replacing rear springs (1) and if necessary To do so, detach rubber boot (10) and plastic ring (9) from upper spring retainer (4) and remove or add space washers (8).	AR40.20-P-0301-02GQ
		Lubricant, rubber assembly 1 l	*BR00.45-Z-1010-06A
9	Replace expansion clip (6)
10	Install in the reverse order
11	Check vehicle level, adjust if necessary	After replacing the rear springs (1)
		Model 164	AR40.20-P-0301GZ
		Model 166	AR40.20-P-0301GQ
		Model 251	AR40.20-P-0301RT

Fig 4: Identifying Clamping Plates (164 589 01 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 5: Identifying Clamping Plates (202 589 14 63 00)

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Fig 6: Identifying Clamping Plates (202 589 13 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 7: Identifying Tensioning Device (202 589 02 31 00)

Courtesy of MERCEDES-BENZ USA