Vibration felt through the chassis at idle?
Thread Starter
MBWorld Fanatic!
Joined: Jan 2015
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15 S550 4Matic, 86 560SL
Vibration felt through the chassis at idle?
Someone please help me with this problem!
Symptoms:
Vibration felt through the seats and the doors at idle - in D,R, or N
Visible vibration of the engine
Once moving, not noticable
Notes:
Engine/transmission mounts replaced last week
Sparkplugs and air filters replaced 5k miles ago
Intake taken apart and checked, looked clear and tight
Idle stable at about 600rpm
Any ideas?? I'm wondering if it's just the new mounts? Or just normal for a big V8.
Cyrus
Symptoms:
Vibration felt through the seats and the doors at idle - in D,R, or N
Visible vibration of the engine
Once moving, not noticable
Notes:
Engine/transmission mounts replaced last week
Sparkplugs and air filters replaced 5k miles ago
Intake taken apart and checked, looked clear and tight
Idle stable at about 600rpm
Any ideas?? I'm wondering if it's just the new mounts? Or just normal for a big V8.
Cyrus
Super Member
Joined: Dec 2011
Posts: 531
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From: EDH, CA.
2012 E63 AMG
My guess is the new motor mounts weren't secured properly - or maybe wrong? I would look there first as they were replaced last week, unless this vibration was occurring before replacement...
Thread Starter
MBWorld Fanatic!
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15 S550 4Matic, 86 560SL
That was my thought too, but they are aligned correctly. Not sure there's much more to their installation.
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From: Texas
2003 CL55
Do you have headers or any exhaust mods? If so, vibration can come from those areas too.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
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E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
www.ultimatepd.com
instagram @ultimate_pd
facebook.com/ultimatepd
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Joined: Sep 2014
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From: Worldwide
2007 Mercedes E63 AMG
i'm not sure on the install process of the W211 engine mounts, but do they require the engine to be run to allow them to self center before securing? or do they just need to be bolted in?
Thread Starter
MBWorld Fanatic!
Joined: Jan 2015
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15 S550 4Matic, 86 560SL
Member
Joined: Nov 2017
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2008 BMW M5, 2004 E55 AMG (RIP)
If it’s not engine mounts, maybe it’s something with the driveshaft like a flex disc. I’m not mechanically well versed but maybe it’s not aligned at idle and then gets better with revs?
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Joined: Sep 2018
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From: New Orleans Area
2015 E400 Sedan
You say stable idle @ 600 but you get vibration?
But your issue is when in D R or N
Is foot on brake in N?
Does not happen in P?
Put in park let engine idle open hood and look at engine... put hand on engine is it vibrating?
Do same but have someone in Driver seat - Have them recreate virbration in D, R & N.
Things it could be =
Bad motor mount or tranny mount (yeah you stated new but are they any good?)
Engine idle too low or miss
Flywheel cracked (doubt this but worth a check)
Torque convertor messed up and out of balance or fin missing or something.
Tranny input issues.
Applying Brakes is causing something to happen?? since I am guessing this occurs when stopped only
You can rule out anything after tranny since you say it happens in N.
But your issue is when in D R or N
Is foot on brake in N?
Does not happen in P?
Put in park let engine idle open hood and look at engine... put hand on engine is it vibrating?
Do same but have someone in Driver seat - Have them recreate virbration in D, R & N.
Things it could be =
Bad motor mount or tranny mount (yeah you stated new but are they any good?)
Engine idle too low or miss
Flywheel cracked (doubt this but worth a check)
Torque convertor messed up and out of balance or fin missing or something.
Tranny input issues.
Applying Brakes is causing something to happen?? since I am guessing this occurs when stopped only
You can rule out anything after tranny since you say it happens in N.
Thread Starter
MBWorld Fanatic!
Joined: Jan 2015
Posts: 1,019
Likes: 358
15 S550 4Matic, 86 560SL
You say stable idle @ 600 but you get vibration?
But your issue is when in D R or N
Is foot on brake in N?
Does not happen in P?
Put in park let engine idle open hood and look at engine... put hand on engine is it vibrating?
Do same but have someone in Driver seat - Have them recreate virbration in D, R & N.
Things it could be =
Bad motor mount or tranny mount (yeah you stated new but are they any good?)
Engine idle too low or miss
Flywheel cracked (doubt this but worth a check)
Torque convertor messed up and out of balance or fin missing or something.
Tranny input issues.
Applying Brakes is causing something to happen?? since I am guessing this occurs when stopped only
You can rule out anything after tranny since you say it happens in N.
But your issue is when in D R or N
Is foot on brake in N?
Does not happen in P?
Put in park let engine idle open hood and look at engine... put hand on engine is it vibrating?
Do same but have someone in Driver seat - Have them recreate virbration in D, R & N.
Things it could be =
Bad motor mount or tranny mount (yeah you stated new but are they any good?)
Engine idle too low or miss
Flywheel cracked (doubt this but worth a check)
Torque convertor messed up and out of balance or fin missing or something.
Tranny input issues.
Applying Brakes is causing something to happen?? since I am guessing this occurs when stopped only
You can rule out anything after tranny since you say it happens in N.
Thanks again all for your help! I will continue to troubleshoot.
Senior Member
Joined: Aug 2019
Posts: 340
Likes: 189
From: Europe
09 SL500, 03 E320 CDI Wagon
Senior Member
Joined: Aug 2019
Posts: 340
Likes: 189
From: Europe
09 SL500, 03 E320 CDI Wagon
Also one or more bad fuel injectors can cause the problem.
A bad spark plug or coil as well.
Any error messages ?
Senior Member
Joined: Apr 2010
Posts: 394
Likes: 155
2013 E63 P30, 2010 GL550
My money is on the poor quality and/or improperly installed driver's side engine mount. Raise the hood to observe engine from the cabin. Sharply rev the engine from idle (tap to 3K) and drop and watch it through the hood opening. If you see the engine driver's side jump or rise over an inch, then the driver's side mount is likely your problem. You will know what I mean. (The engine will look like trying to escape from the bay over the passenger fender. In extreme cases, the engine will make a knock landing back in place.) Replace mount with a quality part. Hope this helps.
Last edited by maxusa; Aug 20, 2019 at 02:03 AM.
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Joined: Sep 2014
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From: Worldwide
2007 Mercedes E63 AMG
at this point what you need to do is have your car on a lift running...someone inside the car slowly press the accelerator until the technician can identify the source of vibration while under the car.
Member
Joined: Dec 2013
Posts: 165
Likes: 7
2004 E55
My money is on the poor quality and/or improperly installed driver's side engine mount. Raise the hood to observe engine from the cabin. Sharply rev the engine from idle (tap to 3K) and drop and watch it through the hood opening. If you see the engine driver's side jump or rise over an inch, then the driver's side mount is likely your problem. You will know what I mean. (The engine will look like trying to escape from the bay over the passenger fender. In extreme cases, the engine will make a knock landing back in place.) Replace mount with a quality part. Hope this helps.
Member
Joined: Oct 2017
Posts: 216
Likes: 17
From: Boerne TX
E63 and GL450, ML350 bluetec
Im using the billet motor mounts and I have vibrations now, my cats were touching the body when wide open. I had replaced my motor mounts with stock replacements and it never had any vibrations. Pulling the plugs and checking to see if they are all the same in color would tell you a lot and doesn't take much time. If the issue was detected as soon as you swapped mounts then check your work again.
Member
Joined: Jul 2022
Posts: 227
Likes: 44
From: NJ
Looking to buy a CLS55/63
Im using the billet motor mounts and I have vibrations now, my cats were touching the body when wide open. I had replaced my motor mounts with stock replacements and it never had any vibrations. Pulling the plugs and checking to see if they are all the same in color would tell you a lot and doesn't take much time. If the issue was detected as soon as you swapped mounts then check your work again.
Billet motor mounts as in solid? That will definitely transfer any and all vibration to the entire car. I am actually having a similar issue at idle in park. Perfectly smooth idle just feel a sort of vibration at idle and during gentle revs. I did put the car in drive and powerbraked it a tad and saw the engine almost lift kit of the engine bay, same thing when done in reverse on the passenger side. I suspect I have broken motor and tranny mounts and will be replacing them this week. I shall advise if this fixes it.
Member
Joined: Oct 2017
Posts: 216
Likes: 17
From: Boerne TX
E63 and GL450, ML350 bluetec
Billet motor mounts as in solid? That will definitely transfer any and all vibration to the entire car. I am actually having a similar issue at idle in park. Perfectly smooth idle just feel a sort of vibration at idle and during gentle revs. I did put the car in drive and powerbraked it a tad and saw the engine almost lift kit of the engine bay, same thing when done in reverse on the passenger side. I suspect I have broken motor and tranny mounts and will be replacing them this week. I shall advise if this fixes it.
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Joined: May 2022
Posts: 1,917
Likes: 499
From: The Netherlands
2005 CLS55 AMG W219 C219
Jeps indeed, thats why I will probably not consider polybushes/mounts the CLS. I have added polybushes/mounts almost in every car that I drove, but somehow I dont think it fits the character of the CLS. Best upgrade before poly are the Black Series engine mounts + gearbox mount.
https://www.fcpeuro.com/products/mer...ercedes-538475
https://www.fcpeuro.com/products/mer...ercedes-538475
Member
Joined: Jul 2022
Posts: 227
Likes: 44
From: NJ
Looking to buy a CLS55/63
Has anyone found a solution on this yet? Mine has the same feeling at idle in park, drive, Neutral or revers and is noticable driving at lower RPMs. I feel like the cabin in this car should feel a lot smoother. I'm not misfiring, no codes and engine revs fine. Just feels like a vibration. I'm doing motor mounts and a tranny mount next week and hopefully this is it.
I had the car on the lift and confirmed my sway bar endlinks we're bad and one lower ball joint. I ordered all the parts to sort out the front end.
while the car was up inspected the flex disk and it looks good and wouldn't cause a vibration in park and at neutral anyway. Has to be engine mounts or a poorly balanced engine which would have grenaded by now...🤷🏻♂️
I had the car on the lift and confirmed my sway bar endlinks we're bad and one lower ball joint. I ordered all the parts to sort out the front end.
while the car was up inspected the flex disk and it looks good and wouldn't cause a vibration in park and at neutral anyway. Has to be engine mounts or a poorly balanced engine which would have grenaded by now...🤷🏻♂️
Member
Joined: Jul 2022
Posts: 227
Likes: 44
From: NJ
Looking to buy a CLS55/63
I am leaning towards transmission and engine mounts. I can feel it in park or any gear but when in neutral it's not as noticable. Also when I give the car some hard throttle when holding the gear shifter I can literally feel the shifter moving drastically.
Newbie
Joined: Aug 2023
Posts: 6
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E55 AMG W211
Hello guys.Did someone found what the problem is?
have the same problem.When the car is cold,Is making really shaky movements by idle,but the moment I drive it a little,the idle is getting smoother.I mean I can feel it by the end but is so minimum,like it should.
what I did to find the problem but failed miserably..
-motor mounts and trans mount (maybe I will change them again with the black series mounts)
-MAF Sensor
-timing chain was inspected but seems fine
-many oil changes(maybe something internal is failing but everything was clean)
-throttle inspected and cleaned
-not a single error code
if someone has a solution or an idea to help because I’m thinking to dissemble the motor apart and hope to find the problem at least.
have the same problem.When the car is cold,Is making really shaky movements by idle,but the moment I drive it a little,the idle is getting smoother.I mean I can feel it by the end but is so minimum,like it should.
what I did to find the problem but failed miserably..
-motor mounts and trans mount (maybe I will change them again with the black series mounts)
-MAF Sensor
-timing chain was inspected but seems fine
-many oil changes(maybe something internal is failing but everything was clean)
-throttle inspected and cleaned
-not a single error code
if someone has a solution or an idea to help because I’m thinking to dissemble the motor apart and hope to find the problem at least.
Member
Joined: Jul 2022
Posts: 227
Likes: 44
From: NJ
Looking to buy a CLS55/63
Hello guys.Did someone found what the problem is?
have the same problem.When the car is cold,Is making really shaky movements by idle,but the moment I drive it a little,the idle is getting smoother.I mean I can feel it by the end but is so minimum,like it should.
what I did to find the problem but failed miserably..
-motor mounts and trans mount (maybe I will change them again with the black series mounts)
-MAF Sensor
-timing chain was inspected but seems fine
-many oil changes(maybe something internal is failing but everything was clean)
-throttle inspected and cleaned
-not a single error code
if someone has a solution or an idea to help because I’m thinking to dissemble the motor apart and hope to find the problem at least.
have the same problem.When the car is cold,Is making really shaky movements by idle,but the moment I drive it a little,the idle is getting smoother.I mean I can feel it by the end but is so minimum,like it should.
what I did to find the problem but failed miserably..
-motor mounts and trans mount (maybe I will change them again with the black series mounts)
-MAF Sensor
-timing chain was inspected but seems fine
-many oil changes(maybe something internal is failing but everything was clean)
-throttle inspected and cleaned
-not a single error code
if someone has a solution or an idea to help because I’m thinking to dissemble the motor apart and hope to find the problem at least.
