Vibration problem with a new GL550
http://www.caranddriver.com/reviews/...-update-review
Painful that it took 5 visits, but the foreman indicated that they weren't allowed to do a wholesale change of tires - they could only replace individual tires that demonstrated road force problems.
After this experience, he did communicate with the regional service manager that if they encounter this problem again, they should just replace the Pirellis. Hopefully it will save someone else from having to go through this.
Since I got the GL550 two months ago, it had a vibration at speeds above 40mph. Multiple tire balancings and road-force tests could not resolve it. They even put 5 new tires (yes 5, because they first put 4 new ones and subsequently changed one of these with another new tire) improved things a little, but the vibration is still there. The technicians are now trying to convince me that this is "normal" for these huge 21'' AMG wheels, but I refuse to accept that a $95k car should have a vibration, especially a Mercedes Benz.
To prove to myself that I am not going crazy, I had several of my friends testdrive my car and they all said they feel the vibration. I also went and test-drove a brand-new GL550 (wasting the poor salesperson's time) just to check if all GL550s have this problem. That car also had a similar, but less pronounced vibration.
Another issue is a strange "scratching" feeling in the steering wheel when the car is moving, especially noticed at slow speeds (below 40mph), as if something is scraping against the wheels or in the steering column. It is there when the car is in neutral, so it is not the transmission. It is not a brake pad that is clamping, because the car does not pull on either side. Again, my friends who testdrove the car felt it too... Maybe this scraping has something to do with the vibration as tires are perfectly balanced.
How are other owners of GL550 feeling their ride? I have the wood steering wheel which is probably more sensitive.
The Best of Mercedes & AMG
Is the car still driving smooth?
Ever since i Picked up the car I had this feeling that there is some kind of vibration and I could also hear it like a whoo whoo whoo sound, I took it to the benz dealer and they tried to convince me that this is normal because of the very wide tires which causes road noise, after driving for few more months the vibration seemed to get worse, I took it back in this time I was lot more annoyed , I said that I spend 80 plus thousand of dollars for this car that vibrates thats not acceptable. I think that they know very well that we are experiencing this problem but they are doing what ever they can not to replace the tires. If they will not fix the problem I will take the dealer to court...
Ideal was this ever resolved? I have a 2014 GL450 with vibration over 65mph, they replaced all 4 tires and still doing it.. going back a 3rd time to the dealer and if not fixed I have to get a lemon lawyer. Was yours ever resolved or did you end up filing a lawsuit? I just bought my car 30 days ago this is annoying.


sarsharmo@nc.rr.com Thanks
I would love a an email to sarsharmo@nc.rr.com
Painful that it took 5 visits, but the foreman indicated that they weren't allowed to do a wholesale change of tires - they could only replace individual tires that demonstrated road force problems.
After this experience, he did communicate with the regional service manager that if they encounter this problem again, they should just replace the Pirellis. Hopefully it will save someone else from having to go through this.
P.S cross wind stabilization does not do anything to tires or suspension, the only thing is does is break a certain wheel(s) to counter the wind direction.
After about 4 trips to the dealer mine finally got fixed. Basically changing just the tires to new tires won't fix the problem. After escalating this to a manager at the mb service department, they had me come back and take a drive with the tech that had been working on my car I drove down the highway to make sure he felt the vibration and it wasn't just me.. he confirmed he still did and it shouldn't be driving that way. I left the car there and they pulled off wheels and the tires from another 2014 GL450 with the 20" package and put it on my car.
That seemed to fix the issue car drives smooth as silk. I am upset that I had to waste hours of my time to go back and fourth to the dealer. I almost wanted to bill them for my time and headache.
Anyways, it's got to be some sort of wheel defect not a tire issue from what I see... .. very odd.
That seemed to fix the issue car drives smooth as silk. I am upset that I had to waste hours of my time to go back and fourth to the dealer. I almost wanted to bill them for my time and headache.
Anyways, it's got to be some sort of wheel defect not a tire issue from what I see... .. very odd.
A study by Car & Driver in 2010 focused on the increasing wheel diameter and shrinking sidewalls of tires. The study found that as wheels increased in diameter , they also were increasing in width…..they tested various vehicles and similar vehicles with wheel sizes ranging from 15 to 19….as the wheel size went up , the ride issues developed but could be contained with r precise balancing, properly tuned suspension…..assuming no defects in the wheels, out of round tires, etc. In other words , the smaller the wheels the less obvious some issues were. Here's a quote: "We do know that the heavy, 19-inch setup suffered from the most impact harshness and seemed to tax the suspension the most. In contrast, the two smallest wheel-and-tire combos showed a propensity for more understeer on the skidpad but provided a more controlled and supple ride. And although it didn’t register on the dBA-meter, the 15- and 16-inch arrangements had a more pleasant sound quality than the larger tires.
Your case sounds as if there must be some defect with the wheels….perhaps MB needs to look into this more deeply because the issue seems to be fairly common as they moved away from 18"s and more toward 19's and 20'"s on this vehicle. I do not recall much discussion of similar issues back when I was part of the first group to own the original 07 with 18"s.




I've had OEM 21 contis and now 21 Pirelli Scorpion Winter tires without incident with either sport modes turned on. If you insist on using the softest suspension setting then you shouldn't have ordered the 21 inch sport wheel option.
Clearly, MB rotors are having issues... But without the brakes being applied... I would be surprised of a vibration showing up at highway speeds
We had a 2010 GL350 that always had noticeable "harmonic" vibrations at highway speeds even on the smoothest of roads. If the road was a "good" highway, but some bumps, it seemed like the suspension would "succumb" to the bumps and tend to create the harmonics and the vibration. It would feel like an out-of-round tire or bent wheel. The regular service tech would say "what? feels perfect" and the steering wheel would be a tiny bit off-center and the car would drift across the lane. That was the 2010. This new 2014 has much less vibration/harmonic, so I didn't intend to even try the dealership for them to find whatever is causing the trouble. It's just a "live with it" but it really has me questioning the GL as having some design or construction flaw that they've not been able to work out.



