ABC problem
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CL500
ABC problem
Hey guys
I replaced a leaking front shock and high pressure expansion house on my 2000 CL500. It was driving great for 2 days then the 3rd day I hit a couple little bumps in the road and red ABC do not drive car too low error came on dash and wouldn't raise up like normal until I came to a complete stop. Then it was raise up and red error go away until I hit another bump in the road. What's the problem here??
I replaced a leaking front shock and high pressure expansion house on my 2000 CL500. It was driving great for 2 days then the 3rd day I hit a couple little bumps in the road and red ABC do not drive car too low error came on dash and wouldn't raise up like normal until I came to a complete stop. Then it was raise up and red error go away until I hit another bump in the road. What's the problem here??
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CL500
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From: Welwyn, Herts, UK
2006 S600
Did you do the push test with the engine off? If so, that doesn't tell you much, as the struts are hydraulically isolated from the rest of the ABC system, and you're just bouncing the springs. It could be that you have low hydraulic pressure, in which case you need MB STAR to do proper diagnostics.
Nick
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Accumulators are most likely weak if the rear bounces. If your car is actually low and will not budge you might have a bad valve block. That system on the W215 was the worst!!! I had 5 of those cars. The W216 was a heavily revised system and they will put the revised parts on your car, when they replace them. All I can say is GOOD luck and hope you have saved up a large chunk of cash.
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I did the push test with the engine running and the front bounces also but not as much as the rear.
Did you do the push test with the engine off? If so, that doesn't tell you much, as the struts are hydraulically isolated from the rest of the ABC system, and you're just bouncing the springs. It could be that you have low hydraulic pressure, in which case you need MB STAR to do proper diagnostics.
Nick
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I already poured a bunch of cash into it already. Well anyway I did the push test with the engine running and the front bounces also but not as much as the rear. Should I start with changing both accumulators? It's still raising up when I first start driving it for the day and when it does drop it rises back up when I come to a compete stop.
Accumulators are most likely weak if the rear bounces. If your car is actually low and will not budge you might have a bad valve block. That system on the W215 was the worst!!! I had 5 of those cars. The W216 was a heavily revised system and they will put the revised parts on your car, when they replace them. All I can say is GOOD luck and hope you have saved up a large chunk of cash.
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Ok, so you definately need front and rear accumulators but is the car sitting low when running? If not you have a bad height sensor. Does it drop after turn off or is it level all the time? Also, your pump could be weak which is causing the error. You really need to take it to a MBZ authorized dealer.
Last edited by 2014CL600; Mar 2, 2016 at 01:36 AM.
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CL500
The only times I can tell if it's rising or dropping is when the red ABC light comes on while I'm driving and it rises up when I come to a stop. It's never sitting noticeably low when the engine is off or on. Shocks aren't an issue I've replaced the leaky ones. When I replaced the high pressure hose last week it drove great for 2 days no red ABC light
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CL500
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there are 4
4 in total
Part for the front and rear accumulators (You need two) is: A220-327-01-15
Be advised there are two other nitrogen spheres in the system as well. One is mounted to the pressure relief valve (Part #A220-327-02-15) which is found in the front right side of the vehicle.
The other is a small nitrogen chamber (Called an Air Cell) that sits near the fuel pump in the driver side mid/center of the vehicle, (Part #A220-320-04-15).
if your spheres are original and you need to replace one of these spheres, replace them all as they will all be in roughly the same condition. Over time, it is normal for the nitrogen pressure to reduce due to use/leaks. If one of the rubber internal diagrams have broken, the others may be close as well.
Part for the front and rear accumulators (You need two) is: A220-327-01-15
Be advised there are two other nitrogen spheres in the system as well. One is mounted to the pressure relief valve (Part #A220-327-02-15) which is found in the front right side of the vehicle.
The other is a small nitrogen chamber (Called an Air Cell) that sits near the fuel pump in the driver side mid/center of the vehicle, (Part #A220-320-04-15).
if your spheres are original and you need to replace one of these spheres, replace them all as they will all be in roughly the same condition. Over time, it is normal for the nitrogen pressure to reduce due to use/leaks. If one of the rubber internal diagrams have broken, the others may be close as well.
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Well, I had a problematic 2004 and had all of mine replaced and there were only three.
I have had four of the W215 models 2000, 2004, 2005 and 2006, so I pretty versed on these cars and their issues. If you have another factory diagram different from this one, would you please provide it for us. Hope this clears it up for anyone needing help with there W215. I hope I have helped. Good luck with finding your problem.
I have had four of the W215 models 2000, 2004, 2005 and 2006, so I pretty versed on these cars and their issues. If you have another factory diagram different from this one, would you please provide it for us. Hope this clears it up for anyone needing help with there W215. I hope I have helped. Good luck with finding your problem.
Last edited by 2014CL600; Mar 2, 2016 at 01:50 AM.
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I just looked it up and it is the front one. They don't show two in the front unless I am missing something that the factory has neglected to show. I could be wrong but when I had mine replaced they only replaced three. They said they would do them all when your opening up the system. I had a bad block but all of this was actually done in warranty in late 06 on the 2004. The worst car I had ever owned, btw. I had 2 going at once and bought the 06 when the 07 model came out and traded off the 04 and 05.
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its not the same as The front and rear axle accumulators (You need two) is: A220-327-01-15
Your text description lists these two
The third is mounted to the front right pressure relief valve Part #A220-327-02-15
The fourth is near the fuel pump in the driver side center of the vehicle, (Part #A220-320-04-15)
Your text description lists these two
The third is mounted to the front right pressure relief valve Part #A220-327-02-15
The fourth is near the fuel pump in the driver side center of the vehicle, (Part #A220-320-04-15)
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They are all known as accumulators. This is the one you keep missing
http://www.partsbase.org/parts/mercedes-a2203270215/
As you can see it's also called an accumulator .
In your latest picture you can see all 4- One attached to the left front valve block , one attached to the right front pressure sensing valve , one in the center of the car attached to the valve block , and one in the far rear of the car. All 4 need replacement due to age
they are all accumulators and described as such by Mercedes. I provided the part numbers of all 4 . And there are 4 of them. Not three.
Mercedes has used the terminology of "accumlators , nitrogen spheres , air cells, pressure dampener" in various documents, but they are all the black sphere devices that separate fluid and a nitrogen charge. And there's 4 of them which all need replacement.
http://www.partsbase.org/parts/mercedes-a2203270215/
As you can see it's also called an accumulator .
In your latest picture you can see all 4- One attached to the left front valve block , one attached to the right front pressure sensing valve , one in the center of the car attached to the valve block , and one in the far rear of the car. All 4 need replacement due to age
they are all accumulators and described as such by Mercedes. I provided the part numbers of all 4 . And there are 4 of them. Not three.
Mercedes has used the terminology of "accumlators , nitrogen spheres , air cells, pressure dampener" in various documents, but they are all the black sphere devices that separate fluid and a nitrogen charge. And there's 4 of them which all need replacement.
Last edited by tusabes; Mar 2, 2016 at 04:17 PM.
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Ok, please don't think I'm trying to be a know it all or a douche bag. I called Mercedes, just now, and they said there are only 3 nitrogen filled bulbs. The 4th one you are talking about is what they call an Air cell and is not considered to be an accumulator. I do see what you are saying. They actually said there are only 3 accumulators and the rest are pressure valves but not all are nitrogen filled. Thank you for showing us the diagram. I see what you are talking about. It does look like there are 4 in total.
Last edited by 2014CL600; Mar 2, 2016 at 04:34 PM.
