Was driving this weekend and a warning came up that said "active curve malfunction." Steering felt weird for a minute then it seemed to be ok. I was able to hit "ok" and the malfunction went away. Hasn't done it since. Anyone had this issue before?

 

When my 14 GL450 was delivered that happened about a week later. I think it recovered a few times but eventually completely died. Turned out the hydraulic lines for that system were poorly installed at the factory and it had a fluid leak.

 

2016 GL350 ordered to my specs took delivery 12/10/15. MSRP of 87+. On 12/29/15 active curve malfunction warning came on - repeatedly. Opened hood to discover hydraulic fluid leak. Also discovered air intake manifold to motor not properly attached. Hanging off. And two giant cracks in fuse box.
Car put on flatbed to dealer where it stayed from Jan. 5 to Jan. 22. They claim it was simply an "air lock" or air bubble and easily fixed. I am leaving many other details out that would leave any reader slack-jawed. The result of the nightmare was an offer of an extended warranty. On Feb. 26 the problem happened again. After a week at the dealer, they confirm they have no idea what is causing the problem. In roughly 93 days of ownership we have had the proper use of the vehicle for only 50 days. 43 days without. We have asked for our funds to be returned in full and our tax as well. No reply yet. The behavior of all involved at MBUSA has run the gamut from friendly, passive agressive, dishonest (which they have now admitted), useless, etc... More details upon request. Total nightmare. No offer of a rental.

 

You need to contact Mercedes for a buyback.. Use the info on Mercedes Me website to contact individuals at Mercedes HQ. Others have had issues and have had buybacks with little to no hassle.

 

Thank you dieseldoc. We live in Jackson WY as you might have guessed. Not near a dealer. Vehicle was purchased through Boise dealer. MBUSA chose to use SLC dealer (Lindon) for service issues. The Boise dealer proved itself useless from the get-go. Lindon has been hit and miss without the hits. We contacted MBUSA long ago to open the conversation about possible buy back in the event things progressed in a way that did not seem right. We got an endless supply of "we are sorry you feel that way". We purchased the vehicle using an AMA discount. We have been engaging for some time with the National Fleet Sales rep and he is quite nice and apparently has little clout. We have made a formal request of him and of MBUSA to refund our payment in full. We will hire a lawyer if needed. We (my wife) will soon meet with AMA leadership to suggest to them that AMA should sever ties with MB for cause. The details I have not shared are sufficiently mind blowing that I will also share the story with my friends at NPR and NYT who will likely find it worthy of ink.
Having owned a handful of MB and been raised driving only MB diesel products I am astonished at this experience. I keep looking around the corner to see if the ghost of Alan Funt is nearby. Stay tuned...

 

I am sorry you are having problems. I have had multiple Mercedes and they in general have been great cars. My GL diesel which I just traded in probably gave me the most hassles, but the dealer was superb and took great care of me. I also bought my cars thru the AMA. I will be interested in their response.

 

Jeff,
I will keep you posted. I have personally owned '95 E420, a '90 2.5 turbo D sedan, a '94 E320 Wagon, a 2001 E55 and now this car. I have driven, 240D, 300D in the 1970's, and 300Turbo D sedan and 300TE, 300 TD wagon (x3), a 6.9 (modified 450 SEL), two different 300SL Gullwings, and driven in, but not driven, a 600 Limo Pullman. All in the family. Each was perfect when driven and whatever problems each had were not too troublesome.

The latest update as of an hour ago is that they are going to try to replace a valve block for the hydraulic system. Sadly, at this point, the update should be sent to MBUSA because we have no interest in the vehicle. Man and his machines are imperfect but when you hand a 90K machine to a customer, run them around endlessly, lie (documented), etc...you would need your head examined if you think the customer should seek to continue owning the vehicle. My wife is about to land in Chicago and has meetings with the AMA and AOA. We shall see if the AMA (do not forget the Sunbeam distaster) wishes to help do the right thing. As it stands, MBUSA seems not to understand the difference between principle and principal.
John

 

The dress rehearsal for all of this...
After ordering the vehicle and waiting the usual 3 months, I drove the 5+ hrs to Boise the day after the vehicle was delivered. Upon arrival I was told..."well, you have to come back tomorrow, Thursday, because the person who can process your AMA discount is not here today". 30 mins later I had completed the paperwork. Funny how they managed to get it done when inspired to do so.
And as a side-note, notwithstanding the apparent compulsive dishonesty at VW (porsche audi), my Cayenne Diesel is a superb vehicle and awaits whatever tweak may be required to "make it honest". I do see a recent lawsuit filed in Washington State against Benz and their diesels (emissions) but have no idea if it is legit. Will be interesting to see. The husband of a good friend of mine managed the entire process that accidentally uncovered the entire VW scandal. I will ask him if he knows anything about the recent Benz suit. And will pass it along to those writing on the subject at the NYT. Danny Hakim is the best among those who have written on the subject. Most recently Jan. 21.
Maybe I should just stick with LandCruisers and any in-line 6 BMW.