ABC suspension reservoir pressure shot fluid out the top
Thread Starter
Member
Joined: Jun 2011
Posts: 163
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2003 C32, 2002 S55, 1999 SL500, 2004 S430
ABC suspension reservoir pressure shot fluid out the top
Has this happened to any one?
I wasn't the person driving the 2002 S55 at the time but when I got it back I noticed the res empty with the suspension dip stick popped out and a nice spray pattern under the hood.
I hooked up the star and ran the series of tests: sensors, valves, pump, dynamic test. Every thing passed with out any new codes or leaks.
I'm not sure where to go from here, what would cause alot of pressure in the suspension fluid res?
I wasn't the person driving the 2002 S55 at the time but when I got it back I noticed the res empty with the suspension dip stick popped out and a nice spray pattern under the hood.
I hooked up the star and ran the series of tests: sensors, valves, pump, dynamic test. Every thing passed with out any new codes or leaks.
I'm not sure where to go from here, what would cause alot of pressure in the suspension fluid res?
Senior Member
Joined: Aug 2010
Posts: 347
Likes: 3
From: Tennessee
2005 S55, 2002 E430, 2007 CLK350, 2006 SL55, 2003 SL55
Mine did that once after a rodeo session, with new filter, etc. I think that the tank can overflow under certain conditions without there realy being an issue. Top it back off and write it off as part of the ABC deal.
Mike
Mike
MBWorld Fanatic!
Joined: Nov 2007
Posts: 1,339
Likes: 11
From: Gulf Coast but not Florida
GLK350, SL63 AMG
1. Agree with filter replacement. Perhaps it was plugged up? The new filter is a 3 micron (vs 10 micron) filter. Use MB OEM. I replaced mine at 50k miles.
2. Check the O-ring around the ABC filler cap. If it is twisted or frayed it would be wise to replace it.
3. As a rule one can use Petrosin as a lower cost equivalent to the MB OEM fluid. I keep a container in my "spares box" in the trunk.
4. How many miles do you have on the car?
5. Annecdotally I noticed wide swings in temperature is associated with a leak but nothing as dramatic as yours. I drive the CL in ABC Comfort mode as instructed in the OM when the temps fall below 7 C/ 45F.
Hope this helps.
2. Check the O-ring around the ABC filler cap. If it is twisted or frayed it would be wise to replace it.
3. As a rule one can use Petrosin as a lower cost equivalent to the MB OEM fluid. I keep a container in my "spares box" in the trunk.
4. How many miles do you have on the car?
5. Annecdotally I noticed wide swings in temperature is associated with a leak but nothing as dramatic as yours. I drive the CL in ABC Comfort mode as instructed in the OM when the temps fall below 7 C/ 45F.
Hope this helps.
Thread Starter
Member
Joined: Jun 2011
Posts: 163
Likes: 0
2003 C32, 2002 S55, 1999 SL500, 2004 S430
There is about 149k miles on the car, the filter was about 10,000 miles old. I flushed out half the fluid and changed the filter again. I have not been able to reproduce the problem again.
