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#1
06-30-2001, 12:22 PM
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On the vacuum pipe between the brake servo and the vacuum pmp I have a small non return valve. There is a small brown pipe (3mm) leading from this to somewhere in the bowels of the car. Does anyone know what this does cos ive just broken it!!!!
Many thanks 
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#2
06-30-2001, 03:19 PM
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The original vacuum pipe was black with white plastic nipples that support various vacuum systems. Not knowing what body its hard to guess. Presuming you have a 123 body. The lines coming from the nipples are green: A/C, brown: shut-off function, yellow: door locks, black: early cruise control. Also black lines go to trans control on 80 and newer models.
If the line involved is the trans control the nipple has a very important oriface size and you should replace the vacuum pipe. The others can be variously fixed.
__________________
Steve Brotherton Continental Imports Gainesville FL Bosch Master, ASE Master, L1 33 years MB technician
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#3
06-30-2001, 06:57 PM
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Its an 88 300d 6 cylinder. 124 chassis.
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