Teamsabino

Hoping someone can help. Past month or so, I've been getting vibration while driving between 1700 - 2200 rpm, at any speed. It's most noticeable when climbing slight hills. Happens with me controlling the throttle or on cruise control. No check engine light. Nothing while in neutral or park. Fine under hard acceleration. Dealer can't find anything wrong.

I've looked through the forums, and haven't found anything.

Any ideas or questions that might help?

cocobeex

Engine mount issue ?

Teamsabino

How owe can I check that?

PeterUbers

no idea but try an alternate dealer

seems engine or drivetrain related, intakes ok?

transmission mount also to be considered ...

Abrown3mtg

Is the vibration the same regardless of speed or does it increase/decrease with speed as well? (Does it seem rotational)?

How many miles are on the car? How are you sensing the vibrations? (steering wheel, overall), car feels like it is losing power, sound, etc).

designzio

Could be driveline related. Especially since you mentioned it occurs while under a load. Can you feel it near the front or rear of car?

Wolfman36

This happened to me w/ another car & it had something to do w/ the car's computer chip. They had to re-calibrate it or reprogram it or something like that; but whatever they did, it ended up working. Not saying this is your problem, but may be possible?

Teamsabino

I definitely feel it more in the front (steering wheel, pedals, seat).

Teamsabino

I just tipped 100k. Its not speed dependent. I will feel it around 40, 50, 60. But as soon as I feel it, I can stop it immediately by letting off the accelerator (or flooring it).


There may be a low sound when it's occurring, but nothing really noticeable.


I can repeat it fairly consistently at those low RPM (1700-2200), especially while climbing a hill.

designzio

Sounds more and more like a drive line issue

homeofstone

Driveshaft flex joints may need replacing.

MercFiveHundred

Check for codes via STAR. My e500 did the exact same at the same mileage. Conductor plate needed changing. STAR confirmed speed sensors in conductor plate were bad.

sprfrkr

^ This is my thought as well

RDNXXX

I have the same issue on my w220 2006 S 500. In the dealer shop right now for Transmission fluid change and screen change out. they are only guessing though

so the question i have is what are conductor plates, where are they, and what might be a cost to replace.

sdenn

I have this issue, have posted on this before. Dealer has attempted to fix 9 times so far. MB corporate has been involved, they have extended the warranty to 7 years 70k. Next step will likely be a torque converter or new transmission.
It is very intermittent, very frustrating.

Teamsabino

Finally got a test ride with the service foreman. He knew practically instantly that it was the torque converter and solenoid. Unrelated, he also recommends I have my transmission and motor mounts replaced. All covered under warranty, thankfully. Setup my appointment for next week.