likerage

After describing the issue my service dept. hurried to get me a loaner and wants me to drop it off today. I guess they dont like chancing steering issues.

icanectc

I have a newly purchased 2016 C450 and attempted to duplicate your situation and my car does NOT produce the same results no vibration feedback occurs over the steering wheel for me.

likerage

Well, after a week and a half in a loaner they have contacted me to say " we compared it to several new models and found them to have a very similar condition. My technician and foreman have deemed that this is normal operation".

Im not very happy to say the least. I have a feeling that this is "normal" operation but because of a problem with the engineering of the weird 4 matic system in it. So now I have a brand new car that people ask what is wrong with it. Embarrassing both for me and Mercedes.

If you have similar issues you should raise a stink. There are people ordering their C43s now that I think will be displeased when they end up having the same problem.

Also im curious with those that have the same problem what tires/wheels you have. I have a feeling that this might help exacerbate the issue. Im on 18s and continentals.

InTheBenz0

Same. Car has 350 miles. Does the same thing. I am taking it in Monday for speaker rattle (known issue), piece of open pour ash trim is popping out passenger side door, and to have this looked at.

tmoneyC450amg

Same issue occurs while im straightening out the wheel after backing out of a parking spot. Although it doesn't affect the driveability of the car, it is somewhat annoying.

C450 with 5500 miles. Aug 2015 Build

likerage

Looks like that makes 6 of us.

gtron8

My wife was like "what was that?!" the other day. I wonder if this will eventually turn into a recall.

charliebear

Hey Linkerage. Can you add a poll on to keep track of who experiences this issue on their c450?

So today I got my C450 back after 3.5 weeks! The part (steering rack) had to be shipped from Germany. They need to get some parts over in the US! I had a previous part needed to be shipped and took a month as well. (different issue).

The techs did replicate it and found the electrical power steering rack faulty. Per sheet, they did a 3 miles test and alignment.

Now, thinking it was all good, the second time I drove it today to pick up the wife, it suddenly occurred again as she felt it as well.

I will be talking to my SA and Mercedes CS about this tomorrow but won't put it in the shop unless I feel it again. Which I assume it will.

likerage

I had a feeling that was going to happen. I am betting this was poor engineering on the odd 4matic ratio. I was unable to add a poll in the edit so I made a new post here.
https://mbworld.org/forums/c-class-w...sues-poll.html

Jdem22

Make that 7. I just felt it for the first time. I have an appointment Friday morning.

InTheBenz0

Please see my thread I made yesterday and my post on the thread.

I just got a new loaner yesterday 200 miles, c300 coupe did it. Drove another c450 did it.


Another sales guy at dealer has a c450 with 7k miles, did it.

C300 owner was in - did it.

I had a c300 sedan loaner last week until my parts were ordered for the speaker bracket holders.. that did it.

Jdem22

Which dealership do you go to?

arnold0523

Damn, I hope the C43 won't have this issue. They use a 31:69 ratio, maybe that makes a difference hahahahahha

Some people did not have this issue on their C450. This makes me wonder why if this really has something to do with C450 4MATIC system.

arnold0523

Just tried my C300, March 2015 build. It does NOT vibrate on right turn.

likerage

To my knowledge, there is no difference in the 4matic of the C43 and the C450.

InTheBenz0

Mercedes benz of caldwell. Why you ask?

Jdem22

Just curious. I always ask people who live in the same area. I'm just glad you didn't say Ray Catena.



So this is obviously not definitive, but I turned off steering assist this morning before backing out of the driveway and I did not get the vibration.

z28lt1

As arnold was pointing out, there is at least a slight difference. The C43 ratio is fixed at 31:69, where as the C450 ratio is 33:67. I don't think people expect that to change anything....

alexasa

iTrader: (1)

You're misunderstanding that ackermann will vary depending on each individual suspension design.

Check this video for some info:

arnold0523

We should check whether all people had this issue had steering assist.

Mine doesn't do it and it doesn't come with steering assist.

Jdem22

Agreed. I am also going to keep steering assist off for a while and see if this morning was an anomaly.

likerage

I tested it with steering assist off for about 30 seconds and had the issue come up.

gtron8

I do not have steering assist and it does it.

arnold0523

So if I am making the summary right, MB is claiming this is normal as they try other vehicles and they all vibrate.

Based on the data points here, it seems that it has nothing to do with steering assist as both w/ and w/o will make it happen.

Mine vehicle does not do it nor does it equips with steering assist. It's an early build (march 2015) C300 4matic.

Thus for your question back to Mercedes, why does it happen on your car? And is it safety related?

I am concerned because I may be getting a C43 soon and I hope this issue gets resolved.

likerage

Yes that is correct.