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#1
03-12-2007, 02:23 PM
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Disabling hydraulic suspension W140 500SEL
Hello all,
I have a 1992 500SEL (W140) and changed the accumulators over the weekend. Unfortunately, one of the lines got mangled and is now leaking. This is the high pressure line between the left accumulator and left shock. Is there any way to temporarily disable the system so I can drive the car? The part won't be in for 2-3 days (earliest dealer could get one!) and I'm spending a fortune in cab rides to/from work! I tried putting the valve in the 'down' position (I think it's called "lower") so that the fluid wouldn't be pumped through the system. Didn't work.. I've pumped a good liter or two onto the ground under the rear of the car. Only other idea I can think of is to pull that leaky hose and replace with an M16 (16mm) bolt that will plug the hole in the valve. Unfortunately, nobody near me sells a 16mm bolt. I'm in Canada, so there aren't the usual Pep Boys, etc. I tried Canadian Tire and Home Depot, but no luck on large metric bolts (they have lots of 12mm but that doesn't help me!) Not concerned with a nice-riding car for now.. bumpy is OK as long as I can drive it! Is there any easy way to shut off the pump (I think the answer is no since it's integrated with the power steering pump) or otherwise disable the system? I have enough oil still in the system that the pump can recirculate it without burning itself out, but if I were to drive the car I'm sure the pump would empty itself in about 15sec and start to burn out. Any ideas??
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'83 300SD 335,000km (207k) mi SOLD '87 560SL 163,000km (101k mi) SOLD '86 300SDL 356,000km (220k mi) SOLD '92 500SEL 250,000km (155k mi) SOLD '90 300SL 140,000km (87k mi) SOLD '01 S430 260,000km (161k mi) SOLD '03 SL500 167,000km (104k mi) SOLD '07 S550 4MATIC 235,000km (146k mi) SOLD '07 GL320 CDI 4MATIC 348,000km (215k mi) '13 GL350 BlueTec 4MATIC 170,000km (105k mi) '14 SL550 72,000km (43k mi) 
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#2
03-12-2007, 04:20 PM
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As to what I know, u can't temporary disable it. Go to the nearest scrape and find a good used line.
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Master Computer Engineer, A+, Network+, MCP/MCSA/MCSE 4/2k/2k3 - Messaging, MCTS, MCITP, MCT, Brainbench, ICDL and starting Ph.D 380SE 1984 <------- Totaled by flipping accident 300SE 1988 <------- Sold Volvo S70 2000 <---- 4 family Opel Omega 2002 <-- 4 family 560SEC 1989 <------ Sold 560SEL 1990 <------ Sold 560SEL 1991 <------ 4 my mother 560SEL 1989 <------ Sold 600SEL 1992 <------ Current
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#3
03-12-2007, 09:14 PM
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I hate to say it, but rent a car.
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2016 Corvette Stingray 2LT 1969 280SE 2023 Ram 1500 2007 Tiara 3200
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#4
03-13-2007, 09:52 AM
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Since you have to replace the line anyway, crimp it shut or fold it over and crimp. I dont know if the flare fittings have a unique thread, there are plugs for flare fittings that wont damage the valve
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#5
03-13-2007, 12:52 PM
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Aha! Good idea!
Should I cut the line and hammer a section flat, THEN fold the end over? I'm worried that I'll cause cracks in the two corners where the bend happens. Anyone know the easiest way to fold over a hydraulic line without it leaking?
__________________
'83 300SD 335,000km (207k) mi SOLD '87 560SL 163,000km (101k mi) SOLD '86 300SDL 356,000km (220k mi) SOLD '92 500SEL 250,000km (155k mi) SOLD '90 300SL 140,000km (87k mi) SOLD '01 S430 260,000km (161k mi) SOLD '03 SL500 167,000km (104k mi) SOLD '07 S550 4MATIC 235,000km (146k mi) SOLD '07 GL320 CDI 4MATIC 348,000km (215k mi) '13 GL350 BlueTec 4MATIC 170,000km (105k mi) '14 SL550 72,000km (43k mi)
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