Remove/install rear axle valve unit - AR32.50-P-0002R (SL500, SL55 AMG 2003-2006, SL600 2004-2006, SL65 AMG 2005)

MODEL 230.474 /475 /476 /479 

Fig 1: Identifying Rear Axle Valve Unit Components

Courtesy of MERCEDES-BENZ USA

MODIFICATION NOTES

22.10.02	Safety note, included for the first time		AS00.00-Z-0005-01A
22.10.02	Notes on fitting hydraulic lines and hoses, included for the first time		AH32.50-P-0001-02A
5.3.03	Value changed from 50 Nm to 45 Nm	Figure in Column 1001, 1002, 1003, 1012 Lines 1 and 2, 1013 on Model 230 has been revised	*BA32.50-P-1002-01A
5.3.03	Specification changed from 10 Nm to 9 Nm	Figure revised in row 1006, 1007, 1010, 1014 on model 230	*BA32.50-P-1006-01A
5.3.03	Specification changed from 8 Nm to 9 Nm	Value revised in row 1004, 1008, 1015, 1016, 1017 on model 230	*BA32.50-P-1016-01A

	Remove/install
	Risk of death  cased by vehicle slipping or toppling off of the lifting platform.	Align vehicle between the columns of the hydraulic hoist and position the four support plates below the hoist support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
	Risk of injury  to skin or eyes caused by hydraulic fluid spraying out under pressure. Risk of poisoning  caused by swallowing hydraulic fluid.	Depressurize the hydraulic system completely before starting any work on the system. Wear protective clothing and safety glasses.	AS00.00-Z-0013-01A
	Notes on active body control suspension	Models 215, 220, 230	AH32.50-P-0001-01N
1	Remove fender liner in left rear fender		AR88.10-P-1400R
2	Relieve pressure in ABC system		AR32.50-P-0001-01N
3	Detach retaining clip (1) of pressure lines
4	Unscrew nut (2) and pull carrier plate out of guide (3)	Place carrier plate on transmission jack.
			*BA32.50-P-1016-01A
5	Unscrew pressure line to left rear suspension strut (FB1) and pressure line to right rear suspension strut (FB2) from rear suspension ABC valve body (Y36/2)		*BA32.50-P-1002-01A
	Notes on fitting hydraulic lines and hoses	Models 215, 220, 230	AH32.50-P-0001-02A
6	Unscrew pressure line to rear axle pressure reservoir (SP) and pressure line from tandem pump (P) from rear suspension ABC valve body (Y36/2)	Wait at least 15 minutes after switching off the engine before disconnecting the pressure line from the tandem pump (P) and from the rear suspension pressure reservoir (SP) to allow the ABC system to depressurize completely.
			*BA32.50-P-1002-01A
7	Disconnect line to expansion reservoir (T) from ABC rear axle valve unit (Y36/2)		*BA32.50-P-1002-01A
8	Disconnect wiring plugs (53d) and wiring plugs (53e) from the ABC rear suspension valve body (Y36/2)	Installation:  The wiring plugs and the connections on the rear suspension ABC valve body (Y36/2) are color-coded, ensure that they are reconnected in the correct locations.
9	Disconnect the rear suspension ABC valve body (Y36/2) from its mounting bracket		*BA32.50-P-1006-01A
10	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
11	Fill and bleed ABC system		AR32.50-P-0021N

ACTIVE BODY CONTROL SUSPENSION

Number	Designation		Model 230
BA32.50-P-1002-01A	Union nut, line to front/rear axle valve unit	Nm	45
BA32.50-P-1006-01A	Bolt, valve unit to retaining plate	Nm	9
BA32.50-P-1016-01A	Nut, carrier plate to rubber buffer	Nm	9