ABC Blew Out??? - Page 2 - Mercedes-Benz Forum
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post #11 of 15 (permalink) Old 05-28-2019, 12:24 PM
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Originally Posted by Chrismyers View Post
Thanks for the reply! What is the success rate of using the compression coupler? I've used them on home water lines but my understanding is the ABC is under significantly higher pressure than typical home water lines. Just don't want to go down that road knowing another failure is going to happen.

Chris
Since I have not heard of any ABC coupler issues on the forums...I'd say excellent success. And a LOT less costly. I do not fear couplers.

There are more posts to be found in the W220 forum, as most (all?) of the S class uses ABC, and there are more W220 than R230.

Check out this post:
https://mbworld.org/forums/m275-v12-...ml#post6656414

And this frequent ABC poster:
https://mbworld.org/forums/m275-v12-...ml#post6656261

'11 E350 Bluetec P2 Sport 55K Mi.
'03 SL55 AMG Pano 95K Mi.
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post #12 of 15 (permalink) Old 06-09-2019, 12:58 PM Thread Starter
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Ok ... The hose that blew out has been replaced. I filled the reservoir (it took about 2 3/4 quarts) and also did the adding a little compressed air thing. I started the car and voila ... no ABC warning on the dash! I then pressed the raise button once, the car raised. I pressed it again and it raised again. Pressed it again and the car lowers to normal position ... WOOO HOOO! everything appears to be working. As others have suggested I continued to raise and lower the car (with sport mode on and off) 10-15 times and everything works great!

When I filled the reservoir, the engine was off, I filled the level to the "Motor Aus" (motor off) notch.

I go out this morning and look under the car and there's a puddle. Crap. I rechecked the bolts, they are tight and dry. I then checked the dipstick and it was WAY over the "Motor Aus" notch ... almost to the top of the dipstick. WTH?

I then removed enough fluid to put it back in the "Motor Aus" notch. I started the car, pressed the button to raise, pressed the button to raise again, and pressed again to return to normal. This process was performed a total of 3 times. I then checked the fluid level again, this time with the engine running, and it was significantly lower than the "Motor An" notch. WTH?

I know while adding fluid I did make a mess. I'm not sure it was this size of mess but a mess nonetheless. If you look at the attached pictures, I am pointing to where it is leaking.

I am thinking this leak is residual leaking from the initial blow out, plus the spillage from filling the reservoir.

I've followed the lines and I cannot find any thing that would indicate an active leak. It appears the leak is coming down part of the frame? sub-frame? I'm not sure what to call it.

Any Ideas??

As always, any tips, tricks, advice or even replies are greatly appreciated!

Chris
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Last edited by Chrismyers; 06-09-2019 at 01:03 PM. Reason: More Information
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post #13 of 15 (permalink) Old 06-09-2019, 06:52 PM
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Those underbody trim panels can hold A LOT of oil. I'll bet there was nearly 2 quarts in mine. I removed them and cleaned them so I wouldn't have to deal with the continual drips.

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post #14 of 15 (permalink) Old 06-10-2019, 07:06 PM Thread Starter
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Those underbody trim panels can hold A LOT of oil. I'll bet there was nearly 2 quarts in mine. I removed them and cleaned them so I wouldn't have to deal with the continual drips.
Thanks for the reply! My car didn't come with those panels ... unfortunately. I'm ordering them tomorrow.

I did take the car for a small drive today to see if the ABC light would come on. It didn't. The leak seems to be slowing down. I still think it might be some residual. I'm gonna keep an eye on it.

Thank you to everyone who replied! I really do appreciate it.

Chris
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post #15 of 15 (permalink) Old 06-11-2019, 03:40 PM
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What really held a lot of oil in mine were the panels under the seats - not the lower engine covers. I'd be surprised if someone had remove those. The lower engine covers, though, are prone to curb damage, then they get ripped off at highway speeds.

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