Remove/install hydraulic lines for trunk lid actuation hydraulic cylinder - AR77.37-P-3551V

MODEL 171.4 

Fig 1: Identifying Hydraulic Lines Components

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Fig 2: Identifying Relay Strip, Bracket And Soft Top Mechanism Hydraulic Unit

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Fig 3: Identifying Shock Absorber, Tubular Frame And Support

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	Remove/Install
	Notes on Vario roof assembly work	AH77.30-P-0002-01R
1	Remove cover from Vario roof crossmember (7)		AR77.30-P-3976V
2	Remove tie strap (arrow) and fold down insulation mat (5)	Installation:  Replace tie strap (arrow). Before installing insulation mat (5): ↓
		Check oil level in soft top mechanism hydraulic unit (A7/5), correct if required	AR77.37-P-3501V
3	Mark installation position of hydraulic lines (1) in passenger compartment
4	Expose hydraulic lines (1) on Vario roof crossmember (7)	Observe marking of hydraulic lines (1): Line no. 51 is connected to piston side and line no. 53 to rod side of left trunk lid actuation hydraulic cylinder (13)Line no. 40 is connected to piston side and line no. 42 to rod side of right trunk lid actuation hydraulic cylinder (13). Observe installation position of hydraulic lines (1). Installation:  Observe installation markings. Replace tie strap.
5	Close Vario roof	See Operating Instructions In the event of Vario roof system malfunction, see: ↓
		Closing Vario roof mechanically	AR77.30-P-6235V
6	Remove left or right side paneling in trunk	When removing lines no. 51 and 53 remove left paneling, when removing lines no. 40 and 42 remove right paneling	AR68.30-P-4800V
7	Remove upper trunk center paneling		AR68.30-P-4810VA
8	Remove left and right trunk lid partition bracket	When removing lines no. 51 and 53 remove left partition bracket, when removing lines no. 40 and 42 remove right partition bracket	AR68.50-P-3100V
9.1	Unscrew bolts (8) and remove bracket (9)	When removing lines no. 51 and no. 53.
10	Remove left and right vapor barrier (10)	When removing lines no. 51 and 53 remove left vapor barrier, when removing lines no. 40 and 42 remove right vapor barrier (10)
11	Mark installation position of hydraulic lines (1) in trunk
12	Expose hydraulic lines (1) in trunk	Installation:  Observe installation markings. Replace tie strap.
13.1	Remove tie strap (11)	When removing lines no. 51 and no. 53. Installation:  replace tie straps (11).
14	Remove insulation (2) from tubular frame (3) and install support on den tubular frame (3) as illustrated	This prevents the tubular frame (3) from being folded down when the trunk lid actuation hydraulic cylinder (13) is removed.
			Figure
15	Lift retainer (12) and unclip trunk lid actuation hydraulic cylinder (13) from tubular frame (3)
16	Remove relay strip (15) from bracket (16)
17	Unscrew bolts (6) and remove hydraulic unit for soft top mechanism hydraulic unit (A7/5) from Vario roof crossmember (7) until connections for hydraulic lines (1) are accessible		*BA77.37-P-1007-01A
	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.
18	Separate hydraulic lines (1) from soft top mechanism hydraulic unit (A7/5)	Observe marking of hydraulic lines (1).	AR77.37-P-1000-04V
		Hold rag under soft top mechanism hydraulic unit (A7/5) and plug hydraulic lines (1) and connections on soft top mechanism hydraulic unit (A7/5), to prevent soiling vehicle passenger compartment.
			Figure
			*BA77.37-P-1001-01A
			*BA77.37-P-1002-01A
19	Remove retaining clips (14) and disconnect hydraulic lines (1) from trunk lid actuation hydraulic cylinder (13)	Lay rag below hydraulic lines (1) to catch hydraulic oil running out Installation:  Replace damaged retaining clips (14)
20	Remove hydraulic lines (1) from vehicle toward rear
21	Install in the reverse order	Always replace hydraulic lines (1) in pairs

HYDRAULIC SOFT TOP

Number	Designation			Model 171
BA77.37-P-1001-01A	Emergency actuation valve (N) on hydraulic unit		Nm	2.5
		Fig., see		-
BA77.37-P-1002-01A	Bolt, connection plate to hydraulic unit		Nm	5
BA77.37-P-1007-01A	Bolt, hydraulic unit to bracket		Nm	8

Fig 4: Identifying Set Of Plugs (129 589 00 91 00)

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Fig 5: Identifying Support (230 589 04 63 00)

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