Remove/install seal at outer top part of C-pillar for Vario roof - AR77.50-P-6766W

MODEL 172.4 

Fig 1: Identifying Seal At Outer Top Part Of C-Pillar For Vario Roof Remove/Install Components (1 Of 3)

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Fig 2: Identifying Seal At Outer Top Part Of C-Pillar For Vario Roof Remove/Install Components (2 Of 3)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Seal At Outer Top Part Of C-Pillar For Vario Roof Remove/Install Components (3 Of 3)

Courtesy of MERCEDES-BENZ USA

	Removing
	Risk of injury  caused by body parts being trapped  or crushed  when working on a partially open Vario roof (in stop mode) or in its closing area as a result of the Vario roof suddenly collapsing	Secure Vario roof with a suitable special tool.	AS77.50-Z-0001-01A
1	Switch on ignition and actuate Vario roof actuation switch until the Vario roof has reached the intermediate position as shown.	Position of C-pillar top sections (2) approx. 120°. Leave ignition switched on. The Vario roof remains in this position for approx. 7 min in the stop mode. After approx. 7 min, the Vario roof automatically lowers into the trunk. The stop mode can be increased by an additional 7 min by actuating the Vario roof control switch again.
2	Hook support (3) into right front lock (4) as shown and install at right mount (5)	Support	Figure
		Support	Figure
3	Switch off ignition
4	Remove bolts (7)
5	Remove seal (1) from C-pillar top section (2), unclip in lower area (arrow A) and remove
	Clean
6	Remove sealant residues from sealing surfaces of C-pillar upper section (2) and thoroughly clean sealing surfaces	The sealing surfaces must be free of oil and grease. Otherwise leakage is possible. Observe drying time for cleaning agent
		Cleaner	*BR00.45-Z-1025-04A
	Install
7	Install butyl cord (8) on C-pillar top section (2) as illustrated And pull butyl cord (8) uniformly lengthwise when routing	Do not touch butyl cord (8) with bare fingers. The point on the C-pillar top section (2) at which the butyl cord (8) is attached, must be free of dust and grease. Otherwise leakage is possible. The length of the butyl cord (8) is 1 cm, before it is extended.
		Sealing profile	*BR00.45-Z-1084-01A
8	Install seal (1) at top of C-pillar top section (2)	Ensure that the sealing tab (9) is seated correctly between the support flange and C-pillar top section paneling (2) (arrow B)
9	Position seal (1) at side of C-pillar top section (2) (arrow F) and clip inner sealing lip (arrow C) over entire length into retaining rail (13) on C-pillar top section (2) by hand
10	Press outer sealing lip (arrow D) of seal (1) over entire length into retaining rail (13) on C-pillar top section (2) with assembly wedge	The assembly wedge should not have sharp edges or burrs. Otherwise seal (1) can be damaged
		Assembly wedge	Figure
11	Firmly press seal (1) to C-pillar top section (2) in area of butyl cord (8)
12	Tighten bolts (7)	Slide seal (1) as far as possible in direction of arrow (arrow E) without stretching seal (1) when tightening bolts (7),
13	Clip pin (14) on seal (1) into hole (15) in lower area of C-pillar top section (2)
14	Take off support (3)
15	Close Vario roof with Vario roof control switch
16	Perform rain test

Fig 4: Identifying Mounting Wedge (110 589 03 59 00)

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

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Fig 6: Identifying Support (231 589 02 63 00)

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REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1084-01A	Rear window sealing profile	A 004 989 60 20
BR00.45-Z-1025-04A	Cleaner	A 005 989 19 71