mountainrivera

I've had my 2010 e350 awd for a week and have it in for service after a week of driving it (I did expect to find stuff so not annoyed with this). I noticed that the front end it squeaks/creaks when going over a speed bump or other terrain that may caues the car to bounce. I will let you know what the dealer says but any insight is appreciated. I wil also be posting two other issues separately so they can be searched later on. I didn't see a heck of a lot of info in the forum. Thanks in advance.

hyperion667

welcome and congrats!

it is a car.....and a 2010 model at that.....bound to have some creaks and croaks you know?

good luck and enjoy the car

Platinum09

I have had the same problem on my 09 ML350. It seems to happen more often and regularly in cooler temperatures. In May 2011, the dealership had a difficult time replicating the issue but finally determined that the front control arms needed to be replaced. That did, in fact, fix the problem well. However, in November 2011 the issue recurred. Once again the dealership had a difficult time replicating the problem and determined it was not the front control arms this time. Thus, the tech "completed a suspension lube as per his tech bulletin for sounds". The sound is less frequent but not completely fixed at this point.

Hope this helps.

mountainrivera

Wow - thanks for the quick replies. I should have added that I have a C300 loaner that is takes the bumps without a sound.

K-A

There's something that happens to a very lightly "aged" M-B suspension that gets it creaking. It happened to all of mine, though I'd describe it as a "squeak/creak" coming from the front wheel and/or rear wheel wells. I'm not a heavy guy, but I'd also hear them when getting in or out of my car. I was always told it was a "normal characteristic" but felt something had to be making that sound in error. Maybe a design flaw as it was so continuous. What I always wondered is if whatever actions made it start to creak/squeak affected the ride of the car. Being something that needs lube is a good-case-scenario as it'd mean nothing is potentially "broken" down there.

AudiA4Turbo22

Had the same issue on my 2010 and dealer solved it after 3 visits.

It turns out the bump stops get all grimey and dirty, they cleaned them and lubed them up and now it's perfect. Also, one of my sway bar bushings was drying up.

mountainrivera

Thanks. I'll let you know how I do at the dealer.

mountainrivera

Here is what I was told: " the suspension is fine. This is typical noise from sway bar bushings under maximum stress." I sent the service guy some posts on the issue and will follow-up today. IMO "typical" doesn't = normal. I invite opinions/comments. The dealer has been spectacular by the way so no complaints about them.

Kaine

Had a similar sound, creaking sound when slowly going over speed bumps. The service manager knew exactly what it was when he heard it. The front bumper cover was not aligned correctly. They removed and reinstalled. Not a peep from it since.

Hope this helps.

mountainrivera

I posted my fixes on various threads. My first my service rep is/was an a-hole. I asked for a new one and she really looked after the repairs. For this, they replaced both struts and they also aligned all four wheels - probably required when struts are replaced. All covered under warranty.

champaign777

2010 have bad struts issue

https://mbworld.org/forums/5819394-post163.html

i just found the same in my car , this fixed the majority but it looks like there are some more ghosts left
,-having defective struts is no good for any suspension in the long run

mleskovar

Very common source of squeaks from the front end of many Benz models. These are the rubber bushings that go around the sway bar where it attaches to the bottom of the frame.

mountainrivera

Drove it some more today. Still some noise

champaign777

i will get more inspection after struts replacement
as i said it fixed the majority but not all
again , - having defective struts is no good for any suspension in the long run
this means bad struts killed another suspensions parts

K-A

Ironically enough that characteristic "M-B squeak/creak" that comes from bushings and is an ultimate turn off due to sounding like a rickety old car now popped up on my BMW. It sounds identical to what I heard on my M-B's but not as loud and not as much (i.e when I'd get in or out of my M-B I heard it, it isn't as sensitive on the Bimmer). I guess they use the same kind of bushings or bushing design or something.

champaign777

thats right
just did inspection with my friend - both trust arm bushings have movement
if y dont know what are these bushing here is the link
http://www.ecstuning.com/Mercedes_Be...ngs/ES2145849/
and picture, they connect lower control arm ( trust arm ) to the front subframe


this going to be replaced next, my dealer really likes me

mleskovar

Bad thrust arm bushings cause alignment,steering, and tire wear problems and usually produce a "clunk" and not a "squeak". Usually.

champaign777

ya usually struts also do not fail at 25K miles
these modern cars are peace of sh** , my 2003 530i BMW 120k miles still have original Sachs struts and nothing loose on them
Our suspension journey may not be finished with struts -> trust arm bushings only but this must be the first steps to go
After this the next parts to replace to fix "squeak"/"clunk" whatever will be the sway bars ( these are cheap to replace )
GL !

mnje350

I had a noise, more like a scrunch, that was noticible at slow speeds on the passenger side. Especially going over speed bumps. This was at less than 15k miles. Turned out to be the rub point under the hood, right side rubber bumper against the under side of the hood. I put some Teflon tape on that bumper and the noise is gone. Completely gone! Don't know if this will help you, but it is a place to look.

mountainrivera

Problem solved. I went back to the dealer. They lubed the hood stops (think that is what they called it).

BenzV12

Good to see your dealer fixed it cheap and easy way

champaign777

i lubed the hood stops as well , thanks for sharing
( didnt get what people mean to get this fix by the dealer but well , this forum level does not surprise me anymore : )
to my surprise this indeed took care of some front noises
next trust arm bushings ...

mleskovar

Yes, they're rubber. Has any silicone leaked out? Do they clunk?

champaign777

That's the big mystery for me
Usually trust arm bushing leak ( as they fluid filled ) when fail and they fail around 50k+ miles ( my car has 26k miles only )
I think they do clunk a bit especially when wheels are pushed between 2:30 - 7:30 + steering is not tight as it suppose to be on a new car
In the end it maybe just loosen bolts ? , dealer will confirm this Thursday ,- with moderns cars quality when struts are failed with so low miles
i have no idea how long other parts can last ...

bachree

I need to try this.

I hear the creaking sound coming from front left when driving slower than 10 mph while going through small bumps or cracks in pavement. Any idea what kind of lube?
I'm planning to spray them with silicone lube.

update:
i put felt pads under the hood where it touches the car. I have no idea why mercedes didn't think about that, because it was easy to tell from the discoloration that it's touching metal to metal. I drove at very low speeds to reproduce the noise i was hearing and seems like it's gone. I will make sure after driving some more at different ambient temperature and humidity. If it's fixed it'll be a relief since i don't want to deal with suspension problems considering the car drives like brand new.