Accumulators purpose (each)
06-11-2017, 12:36 AM
#1
Member
Thread Starter
Accumulators purpose (each)
Forum,
I understand the basic functions of the main accumulators, the front left and rear. The other two it seems finding its full purpose function is a bit vague at best.
So accumulators:
-2203270115 There are 2 needed it's function is for self leveling and ride smoothness for the car one is front left the other is in the rear Above the right muffler or maybe the left I forget.(clarify please).
-2203270215 there is 1 that is a pressure relief valve that is all I can find about it. So is its function to take pressure spikes from the ABC pump and system and/or does it provide other functions.
-2203200415 there is 1 and the description just says air cell, obviously that is a bit lacking in its functioning purpose. My Forum friends knowledge needed, please help with this filling the holes for its job function.
Thanks in advanced and please correct where I may be wrong and explain the function(s).
I understand the basic functions of the main accumulators, the front left and rear. The other two it seems finding its full purpose function is a bit vague at best.
So accumulators:
-2203270115 There are 2 needed it's function is for self leveling and ride smoothness for the car one is front left the other is in the rear Above the right muffler or maybe the left I forget.(clarify please).
-2203270215 there is 1 that is a pressure relief valve that is all I can find about it. So is its function to take pressure spikes from the ABC pump and system and/or does it provide other functions.
-2203200415 there is 1 and the description just says air cell, obviously that is a bit lacking in its functioning purpose. My Forum friends knowledge needed, please help with this filling the holes for its job function.
Thanks in advanced and please correct where I may be wrong and explain the function(s).
06-11-2017, 11:34 AM
#2
MBWorld Fanatic!
They are all just there to cope with system demand spikes. The valves/shocks can draw way more fluid instantly than the pump can supply, the pump is a steady supply of fluid at a high pressure. The accumulators allow each branch of the system to not have too much pressure drop when making big excursions.
If you rodeo the car, you can see the pressure slowly fall as the car bounces all over. As soon as it stops the pump can build it back up within a couple seconds, but that's not fast enough for the sudden movements. They basically increase system reserve volume to add some cushion during the dips.
If you rodeo the car, you can see the pressure slowly fall as the car bounces all over. As soon as it stops the pump can build it back up within a couple seconds, but that's not fast enough for the sudden movements. They basically increase system reserve volume to add some cushion during the dips.
06-12-2017, 01:05 AM
#3
Member
Thread Starter
The two main accumulators 2203270115 they are the ones that handle the ride feel, like the slushy feel or I have read as "the tuna boat" ride.
When it was looked at I was told the front and rear accumulator with the part number I gave is the ones that handle the ride firmness side to side since they are the self leveling accumulators, that makes sense.
I know they all are important but when I have things fixed I like to know what its purpose was, like the air cell one...what does that mean? The better I am informed the better I understand and know what to expect if it happens again or the cause of it in the first place.
When it was looked at I was told the front and rear accumulator with the part number I gave is the ones that handle the ride firmness side to side since they are the self leveling accumulators, that makes sense.
I know they all are important but when I have things fixed I like to know what its purpose was, like the air cell one...what does that mean? The better I am informed the better I understand and know what to expect if it happens again or the cause of it in the first place.
06-12-2017, 08:31 PM
#5
MBWorld Fanatic!
Well, the pulsation damper isn't to kill noise, but to stop the pressure pulses. When it fails you hear the noises but it's to keep the fluid pressures constant coming to the main valve block (on a 215/220 it's at the first valve block by the steering rack) or out of the pump (216/221 it's on the pump itself)
