Remove/install front spring · ar3220d0200b · Mercedes-Benz WIS

AR32.20-D-0200B

Remove/install front spring

14.9.11

MODEL 903.0 /4 /6, 904.0 /4 /6 with CODE (ZG1) Engageable all-wheel drive

MODEL 903.0 /4 /6, 904.0 /4 /6 with CODE (ZG2) Permanent all-wheel drive

MODEL 903.0 /4 /6, 904.0 /4 /6 with CODE (ZG3) Engageable all-wheel drive with gear reduction

D32.20-0051-06

1 Shock-absorber strut

2 Screw

3 Nut

4 Nut

5 Screw

6 Screw

7 Stop plate

8 Screw

9 Washer

10 Spring travel limiter stop

11 Transverse leaf spring

12 Transverse control arms

13 Upper rubber spring bearing, right

14 Upper rubber spring bearing, left

15 Lower rubber spring bearing, right

16 Lower rubber spring bearing, left

17 Rubber spring bearing

18 Spring clamp plate, right

19 Spring clamp plate, left

20 Shear bush

21 Screw

22 Nut

Modification notes

19.9.00

Value changed from 75 Nm to 65 Nm

Value in BA32.20-N-1001-01A changed for models 903, 904 with front axle 730.990

	Removing
1	Remove front and rear bolts (21) of spring clamp plates (18, 19)	 The vehicle must be on its wheels.
2	Remove front wheels	 Jack up the vehicle at the front axle and secure with stands.	AR40.10-D-1100A
3	Remove front wheel hub		AR33.20-D-0310D
4	Remove steering knuckle		AR33.25-D-0400D
5	Remove transverse control arm (12)		AR33.20-D-1452-04A
6	Support transverse leaf spring (11) in the center with a jack
7	Remove spring clamp plates (18, 19)	 Mark spring mount rubbers as per installation location .
8	Lower jack and remove transverse leaf spring (11) towards the side
	Install
9	Install transverse leaf spring (11)		AR32.20-D-0200-02A
		Lubricant	*BR00.45-Z-1015-06A
	Wooden block for compressing the transverse leaf spring	Models 901, 902, 903	WF58.50-N-3220-01A
10	Install transverse control arm (12)	 Do not tighten nuts of mounting bolts of transverse control arm mounting (3) yet.	AR33.20-D-1452-05A
			*BA33.20-N-1003-01F
			*BA33.20-N-1006-01F
11	Install steering knuckle		AR33.25-D-0400D
12	Install front wheel hub		AR33.20-D-0310D
13	Fit wheels		AR40.10-D-1100A
14	Install spring clamp plates (18, 19)	 Replace nuts (4, 22).	AR32.20-D-0200-03A
			*BA32.20-N-1001-01A
15	Roll vehicle approx. 1m forwards and back, and rock firmly
16	Tighten nuts (3) on transverse control arm bearing retaining bolts	  The vehicle must be on its wheels.	*BA33.20-N-1005-01F
17	Actuate brake pedal until brake pressure is built up again

 Front axle steel suspension

Number	Designation				Model 903.0/4/6 and model 904.0/4/6 with code ZG1, ZG2, ZG3


BA32.20-N-1001-01A	Bolt, lower spring clamp plate to front axle beam	M121.5	Stage 1	Nm	130
			Stage 2	°	-
		M8		Nm	-
		M10		Nm	65

 Wheel location, hub

Number	Designation				Model 903.0/4/6 and model 904.0/4/6 with code ZG1/ZG2/ZG3


BA33.20-N-1003-01F	Spring travel limiter stop to stop plate			Nm	25
BA33.20-N-1005-01F	Nut, transverse control arm to front axle housing		Stage 1	Nm	150
			Stage 2	°	-
BA33.20-N-1006-01F	Bolt, stop plate to transverse control arm	M10		Nm	60
		M121,5	Stage 1	Nm	-
			Stage 2	°	-

Repair materials

Number	Designation	Order number
BR00.45-Z-1015-06A	Vaseline	Karl Käppler GmbH & Co. KG Liebknechtstr. 48 70565 Stuttgart Germany Tel. +49 711 7868-481 Fax +49 711 7868-489 www.karl-kaeppler.de