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#1
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Acc Servo
Can a 450 SEL run properly without an ACC SERVO (Can it be bypassed?)
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1976 Mercedes 450 SEL (170K Miles) 1999 Nissan Altima GXE (45,000 km) 1986 Ford Bronco II 4x4 |
#2
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The ACC servo handles all aspects of A/C control, but has no part in the running of the car except to contain the coolant. Other than being a huge coolant leak without it, it won't change to way the car runs.
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Steve Brotherton Continental Imports Gainesville FL Bosch Master, ASE Master, L1 33 years MB technician |
#3
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What's going on, is the servo cracked and leaking?
You could use some kind of connector to splice together the main coolant lines going into and out of the servo, and that will bypass the whole servo/heat system of the car. Of course you'll get pretty darn cold this winter! Mike
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_____ 1979 300 SD 350,000 miles _____ 1982 300D-gone---sold to a buddy _____ 1985 300TD 270,000 miles _____ 1994 E320 not my favorite, but the wife wanted it www.myspace.com/mikemover www.myspace.com/openskystudio www.myspace.com/speedxband www.myspace.com/openskyseparators www.myspace.com/doubledrivemusic |
#4
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Thanks Guys
Thanks for the help. I guess what i really need is a decent used one. Hope someone has one.
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1976 Mercedes 450 SEL (170K Miles) 1999 Nissan Altima GXE (45,000 km) 1986 Ford Bronco II 4x4 |
#5
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See if you can get in touch with CTaylor738. He knows of a guy that is a guru on these things. You should find him surfing the forum often.
-Rich |
#6
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Best deal on servos is the rebuilt OEM unit for $295 from George Murphy (Performance Analysis Co.) at 865.482.9175. You should also pop the $50 for a rebuilt amplifier. I put these in my 380SL this week and they brought the system back to life.
You can bypass the servo with a 5/8" hose coupling from Home Despot, connecting the coolant feed and return lines. George will also send you an excellent guide to troubleshooting the system with the rebuilt servo, or for $5 by itself. Trivia - this system was developed by Chrysler and licensed by Mrecedes. Chrysler bailed in 1978, but MB kept using them until 1981. You read the description and marvel at how it ever worked.
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Chuck Taylor Falls Church VA '66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe |
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