nauticalx

I've been wondering if the constant subtle popping/shaking from the motor at idle is normal or if you guys are experiencing a completely still vehicle at red lights. There is a noticeable shake in the passenger compartment from the 550 motor and wondering if this is normal. Thanks

dsayed

I've not noticed this but I will be on the lookout.

1 MB

You didn't say what year, but my 2012 is perfectly smooth. Nothing noticed yet.

USCGTO

The 6.0 L V8 shakes like a mother smurfer in my GTO. But then that pushrod is also pushing over 500HP.

I would expect the V8 in the Mercedes to be very very smooth.

Motor mounts, maybe?

Dueclaws

+1

ronsc1985

The only time my 2012 E550 shakes at idle is if I start it up on a really cold day (25 F or less). This only lasts a few seconds and then the motor smooths out. After that it is hard to tell if the motor is running or not.

dsayed

No shake. 2010 built in 2009 here.

nauticalx

sorry, I was talking about a 2010 to which the 2011 shares the same 550 motor as well.

kbahl21

i have the same motor, mine shakes as well. Its only slightly though.

nauticalx

yup, exactly, shaking but slightly. shouldnt a motor that size , built by benz, be darn still at idle? what year is yours?

kbahl21

2007, do you have any exhaust work done to your car.

I noticed it after i removed my resonator and secondary cats

nauticalx

bone stock

kbahl21

hmm, im not sure then. I could be wrong about the exhaust thing. Ill go to my shop tomorrow and ask him to check the motor mounts. I will let you know what he says

MCD007

I have the idle shake on my 2011 e550 sedan. Has anyone been able to correct it or we all out of luck?

mrivc211

I believe this shaking is caused by the car being stopped while on a very slight slope. I had a E550 sedan and now the E550 coupe. Both cars, shook side to side slightly at the same red light by my house at the same exact location. Next time notice if it's happening at the same spot, if so, it's not the car, it's the angle the car is sitting at. If you take it to the dealership, they won't find anything wrong with the car.

Gluefly

No shaking in mine whatsoever. My 2012 E550 Cabriolet is purrfectly smooth at idle. I had a 2002 Cadillac Deville that shook just like you describe with the highly overrated 4.9 L Northstar V8, so I know what your talking about. And all Cadillacs did it. You need to see the dealer about your MB. It should not be shaking.

nauticalx

YES! Hey on that slope, can you let off the brake and let it roll forward at idle? Damn thing is choppy and stutters on slight uphill slopes! Something is up for sure.

Yosheego

I get it a lot at stoplights. It's more noticeable when i reverse out of my driveway.

dsayed

I'm beginning to notice it but isn't just normal engine vibration?

Gluefly

In my previous reply, I stated that my 2012 E550 Cab is as smooth as glass at idle, but, unless I am mistaken, I now realized that this phenomenon has only been reported by owners of 2010 and 2011 E550's, a completely different engine than mine.

This shaking could be inherent in the earlier E550 like it was in my 2002 Deville (they all did it). Any 2012 E550 owners also seeing this shaking? I have not.

dsayed

Tonight was my "new owners' clinic" at the dealer. I asked the tech about engine vibration. He said they have seen vibration on some E550s. Apparently the engine mount is hydraulic and if there's a hydraulic leak or not enough fluid, this can be the source of vibration (not enough damping I suppose.) He suggested that I have it checked at next service. Now I realise that I am 8k miles away from a service so I may have it checked before then.

Yosheego

Okay, I dropped my car off today for a B service and addressed the shaking issues. I will let you guys know what they say.

dsayed

Yes please let us know if they fix it and what was done.

nauticalx

I'm not convinced the mounts are the culprit as I've noticed a choppiness in power when moving forward at idle on a slight incline- especially so after a sudden deceleration. Letting off the gas at a red light often causes the vehicle to move forward choppily. I'm thinking something is up with idle timing, combustion, fuel/air mixture or similar.

nauticalx

Yes please anyone and everyone who has gotten this resolved, please post your solution. I need to take mine in to get this fixed.