Car vibrates between 2-3000 rpm.
12-03-2012, 10:36 PM
#27
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04 CL55, 04 SL55, 2013 Panamera GTS, 1987 944 Turbo 420WHP, 04 Dodge Viper, 2011 E550, 2013 Accord
Here is where it is located on the car, you can easily change it with a floor jack at home in less that 20 minutes with no experience.
Remove pan under motor
Put oil pand or other large pan under Air cell
Use a 24mm wrench (try to find a thing profile one to make it easier)
Loosen Air Cell (pulsation dampener) slowly (may still have pressure)
Put new one on
top off lost hydraulic fluid.
And thats about it.
Remove pan under motor
Put oil pand or other large pan under Air cell
Use a 24mm wrench (try to find a thing profile one to make it easier)
Loosen Air Cell (pulsation dampener) slowly (may still have pressure)
Put new one on
top off lost hydraulic fluid.
And thats about it.
12-04-2012, 12:42 AM
#28
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Mercedes CL55
Will replacing this also fix my car from raising while in park? I made a post awhile back about my car raising whenever I have it on and in Park. Some of the members said its a sign that my pump is going out but I also have that groan noise like layzie mentioned.
12-04-2012, 01:10 AM
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04 CL55, 04 SL55, 2013 Panamera GTS, 1987 944 Turbo 420WHP, 04 Dodge Viper, 2011 E550, 2013 Accord
does the car raise when your put it into reverse or drive, after its been sitting for a day?
Do you notice the car leaning to one side after its sat for a while?
It could be many things, i guess ill search the forums for your post.
12-04-2012, 01:18 AM
#30
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Mercedes CL55
The car only raises when I put it in park but it takes a couple minutes untill it actually starts to raise and when I put it back to drive or reverse it goes back down to my normal height setting. I noticed this when ever I leave my car on and step inside my house for a bit or when I'm waiting for someone. I just want to know if replacing the pulsation dampener will fix that problem too.
12-04-2012, 09:43 PM
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04 CL55, 04 SL55, 2013 Panamera GTS, 1987 944 Turbo 420WHP, 04 Dodge Viper, 2011 E550, 2013 Accord
No it will not fix the problem, the problem you are having is most likely the valve block. There should be some videos on YouTube about repairing a valve block.
If your pump raises and lowers the car with out any problems then its most likely the valve block
If your pump raises and lowers the car with out any problems then its most likely the valve block
12-06-2012, 12:45 AM
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w215 cl65, W212 E63, R53 Mini Cooper JCW, E92 328I
im trying to figure out if you are driving or at idle, if your driving around 2-3000 rpm and you start feeling the vibration.. this is just a thought.. if you are on the road driving around 40-60 mph sometimes a unbalanced wheel can start vibrating once you start picking up speed.( quick fix that might work)for a idle vibration, get a car jack and have somebody jack up the transmission very carfully just allitle bit to get some pressure off the trans mount and if the vibration goes away then u know its the trans mount needs replacing
12-06-2012, 02:58 AM
#33
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Mercedes CL55
im trying to figure out if you are driving or at idle, if your driving around 2-3000 rpm and you start feeling the vibration.. this is just a thought.. if you are on the road driving around 40-60 mph sometimes a unbalanced wheel can start vibrating once you start picking up speed.( quick fix that might work)for a idle vibration, get a car jack and have somebody jack up the transmission very carfully just allitle bit to get some pressure off the trans mount and if the vibration goes away then u know its the trans mount needs replacing
01-04-2013, 05:44 PM
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Mercedes CL55
You were right simbad, my car drives smooth like butter now. I can't believe what a difference it made. Like you said, we probably got use to the vibration and now that they've been replaced, it's amazing haha. I got my trans and motor mounts replace, parts and labor for a total of $800. I hope I didn't get overpriced...
01-04-2013, 06:22 PM
#36
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07-11-2013, 04:49 PM
#42
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Depends if it is vibrating during idle or while driving or both.
Possible culprits would be:
Pulsation Dampener
Engine Mount
Transmission Mount
Flex Disc
The engine mount will leak when bad but it doesn't mean that just because the are not leaking they are good. The engine mounts are relatively cheap so is the tranny mount. I would change both if its been a while.
Engine Mount:
FEBI or Meyle $55-75
Part Number 230 33133 280
Transmission Mount:
Meyle $20-$24
Part Number 232 33019 500
Flex Disk Kit:
FEBI $133
Partnumber 428 33044 280
It will really help if you check to see exactly when the vibration occurs and how profound it is.
Good Luck,
BR34K3R
Possible culprits would be:
Pulsation Dampener
Engine Mount
Transmission Mount
Flex Disc
The engine mount will leak when bad but it doesn't mean that just because the are not leaking they are good. The engine mounts are relatively cheap so is the tranny mount. I would change both if its been a while.
Engine Mount:
FEBI or Meyle $55-75
Part Number 230 33133 280
Transmission Mount:
Meyle $20-$24
Part Number 232 33019 500
Flex Disk Kit:
FEBI $133
Partnumber 428 33044 280
It will really help if you check to see exactly when the vibration occurs and how profound it is.
Good Luck,
BR34K3R
I let service advisor know that it was probably engine, trans mounts and pulsation damper. She looked up and said "how did know about those issues"
Anyway, it was all three and I want to Thank all of you for helping me " guide " her to fix the right problems. Car will be back tomm.
07-12-2013, 02:13 AM
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04 CL55, 04 SL55, 2013 Panamera GTS, 1987 944 Turbo 420WHP, 04 Dodge Viper, 2011 E550, 2013 Accord
That single part is one of the most often overlooked causes for vibrations on these cars.
We are all here to help each other, correct and accurate information helps best.
God bless
Last edited by BR34K3R; 07-12-2013 at 03:48 AM. Reason: made my response a little more polite.
07-12-2013, 03:13 AM
#45
"I tend to agree with alx, he's been spot on thus far"
I would like to here how the pulsation dampener is in the mix concerning
this conversation. I think if the dampeners were inop shock transfer from the wheels / tires could be an issue but how much in this situation. I would like to here more about this.
I would like to here how the pulsation dampener is in the mix concerning
this conversation. I think if the dampeners were inop shock transfer from the wheels / tires could be an issue but how much in this situation. I would like to here more about this.
07-12-2013, 03:44 AM
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04 CL55, 04 SL55, 2013 Panamera GTS, 1987 944 Turbo 420WHP, 04 Dodge Viper, 2011 E550, 2013 Accord
"I tend to agree with alx, he's been spot on thus far"
I would like to here how the pulsation dampener is in the mix concerning
this conversation. I think if the dampeners were inop shock transfer from the wheels / tires could be an issue but how much in this situation. I would like to here more about this.
I would like to here how the pulsation dampener is in the mix concerning
this conversation. I think if the dampeners were inop shock transfer from the wheels / tires could be an issue but how much in this situation. I would like to here more about this.
The sudden acceleration and deceleration of fluid by the pump in the suspension system causes pulsations. The Pulsation Dampener absorbs pressure spikes and smooths out the fluid that is being pumped.
It filled with nitrogen and hydraulic fluid(the two are separated by rubber, when this leaks the nitrogen is gone (which is compressible) and it fills with hydraulic fluid which is not compressible. This leads to a whole host of problems the main being stiff suspension and vibrations.
I hope I explained that well.
Last edited by BR34K3R; 07-12-2013 at 03:51 AM.
07-12-2013, 04:09 PM
#48
i have gone to classes for the abc system. the pulsation dampers (aka accumulators) have no bearing on prolonged vibrations. they are there to absorb sudden spikes in system pressure when road irregularities are encountered. they are inertial and somewhat slow acting allowing the whole system (especially the rubber hoses) to absorb the hits. however, prolonged high frequency vibrations like those from tires/cake/engine and tranny bushings are not dampened by the accumulators and were never intended to be as... most of the vibrations we are talking about do not come from the tires and thus the abc system has zero effect on them.
Last edited by alx; 07-12-2013 at 04:15 PM.
07-12-2013, 04:21 PM
#49
MBWorld Fanatic!
Well trans mounts on back Order nationwide so I will not get car back today.
Ill just post this from service report
Original Customer Request
INSTALL UPDATED ABC PULSATION DAMPENER (FOUND ABC PUMP MAKING NOISE AND VIBRATING AT LOW RPMS)
REPLACE ENGINE MOUNTS (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
REPLACE TRANSMISSION MOUNT (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
So maybe dampener ( updated part) stops pump itself from vibrating.
Ill just post this from service report
Original Customer Request
INSTALL UPDATED ABC PULSATION DAMPENER (FOUND ABC PUMP MAKING NOISE AND VIBRATING AT LOW RPMS)
REPLACE ENGINE MOUNTS (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
REPLACE TRANSMISSION MOUNT (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
So maybe dampener ( updated part) stops pump itself from vibrating.
Last edited by AMG 17GT; 07-12-2013 at 04:25 PM.
07-12-2013, 04:49 PM
#50
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04 CL55, 04 SL55, 2013 Panamera GTS, 1987 944 Turbo 420WHP, 04 Dodge Viper, 2011 E550, 2013 Accord
Well trans mounts on back Order nationwide so I will not get car back today.
Ill just post this from service report
Original Customer Request
INSTALL UPDATED ABC PULSATION DAMPENER (FOUND ABC PUMP MAKING NOISE AND VIBRATING AT LOW RPMS)
REPLACE ENGINE MOUNTS (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
REPLACE TRANSMISSION MOUNT (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
So maybe dampener ( updated part) stops pump itself from vibrating.
Ill just post this from service report
Original Customer Request
INSTALL UPDATED ABC PULSATION DAMPENER (FOUND ABC PUMP MAKING NOISE AND VIBRATING AT LOW RPMS)
REPLACE ENGINE MOUNTS (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
REPLACE TRANSMISSION MOUNT (FOUND MOTOR MOUNTS AND TRANSMISSION MOUNT COLLAPSED UPON INSPECTION CAUSING VIBRATION IN CABIN AREA)
So maybe dampener ( updated part) stops pump itself from vibrating.
God Bless
