07 S600 ABC Fluid Leak??? HELP
#26
Didn’t “depressurize” per se—just made sure to let the car sit for about an hour after getting back to the house before the job.
My biggest concern was the fact that the 2 rear tires were still on the ground (used two 3-ton jack stands to lift the front end only).
In my head, having weight on the tires in any capacity would create pressure in the system via the shock/strut workload and potentially make any release of pressure in the circuit (i.e. removing the accumulator) a point of massive rush of fluid… this is not the case.
There was no pressure and a few drips from the old accumulator—the block itself was not dripping at all.
#27
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2008 CL550, 2022 EQB300, 2022 EQS580
Yup! It was so simple with the chain wrench. The most difficult thing is the mental stress of not wanting to inadvertently break something!
Didn’t “depressurize” per se—just made sure to let the car sit for about an hour after getting back to the house before the job.
My biggest concern was the fact that the 2 rear tires were still on the ground (used two 3-ton jack stands to lift the front end only).
In my head, having weight on the tires in any capacity would create pressure in the system via the shock/strut workload and potentially make any release of pressure in the circuit (i.e. removing the accumulator) a point of massive rush of fluid… this is not the case.
There was no pressure and a few drips from the old accumulator—the block itself was not dripping at all.
Didn’t “depressurize” per se—just made sure to let the car sit for about an hour after getting back to the house before the job.
My biggest concern was the fact that the 2 rear tires were still on the ground (used two 3-ton jack stands to lift the front end only).
In my head, having weight on the tires in any capacity would create pressure in the system via the shock/strut workload and potentially make any release of pressure in the circuit (i.e. removing the accumulator) a point of massive rush of fluid… this is not the case.
There was no pressure and a few drips from the old accumulator—the block itself was not dripping at all.
#28
#30
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2008 CL550, 2022 EQB300, 2022 EQS580
My post on doing the *** end one.
S600 rear ABC accumulator replacement - MBWorld.org Forums
S600 rear ABC accumulator replacement - MBWorld.org Forums
#31
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2008 CL550, 2022 EQB300, 2022 EQS580
Just following up here for future people needing to change the accumulators on a W216 or W221...it is super simple to do. The front one just screws off with the help of a flexible or chain oil filter wrench. Ignore the WIS instructions about removing the valve block. You may be able to get a 23mm spanner wrench on the bolt as well. Be careful lining up the front accumulator when screwing in the new one...it is easy to be off slightly with the heavy part and damage the soft aluminum threads. For the rear, ignore the WIS instructions about taking off mufflers and heat shields. You can just remove one bolt from the heat shield, bend it back a little, and fit a socket with extension on the bolts holding the accumulator in place. Don't be afraid to do this project, and certainly don't pay the dealer $1000 or so per end to do this.
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Jaap (06-25-2024)