Diesel Hesitation and Bucking
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2012 ML 350 BlueTec
Diesel Hesitation and Bucking
My ML with about 1k on it started bucking and hesitating during light acceleration. When first driven. Doesn't matter if its warmed up or not. After about a minute it goes away.
Anyone else having a similar problem? BTW, it goes to the dealer next week.
Anyone else having a similar problem? BTW, it goes to the dealer next week.
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slight hesitation
This is my first diesel, so I thought maybe this how diesels drive?
But I don't rememer this happening in the rental diesel cars (typcially midsizes and compacts) I drive in Europe.
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2012 ML 350 BlueTec
I get a slight hesitation during light acceleration from rest or crawl, but not always. I just got the car back from the dealer.
This is my first diesel, so I thought maybe this how diesels drive?
But I don't rememer this happening in the rental diesel cars (typcially midsizes and compacts) I drive in Europe.
This is my first diesel, so I thought maybe this how diesels drive?
But I don't rememer this happening in the rental diesel cars (typcially midsizes and compacts) I drive in Europe.
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From: Connecticut
2018 BMW 540d
The same thing happens with mine,exactly as you've described it.Took it to the dealer and was told nothing was wrong.I then insisted that the service manager come for a ride with me at which time it bucked only a little...not nearly as much as it usually does (figures,doesn't it!).I was told that it was probably due to my failure to use the "sport" transmission setting,thus denying the car the opportunity to "learn" first gear (I always use "economy").That sounded pretty lame but didn't persure it.
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slight hesitation
I have not driven the car much, so far only 120 miles, plus another 100 by the dealer + pre delivery.
I will leave it until the first couple of thousand miles. So far, the slight hesitation does not really bother me, as it is occasional - maybe residual issues from the water?
But I will put on at least another 100 miles at least this weekend.
Other than this, pretty happy with the car so far.
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Thread Starter
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2012 ML 350 BlueTec
MBWorld Fanatic!
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From: Connecticut
2018 BMW 540d
Thanks much!
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W212 E350
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W212 E350
Unless my dealer was not being truthful to me, I believe that not only the service department but also dealership management worked very close with mbusa to try and get the issue resolved. Keep me in the loop as to what additional information your dealer provides you.
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300D Turbo 1984
like a particular software update #...?
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W212 E350
Mine never got fixed. They were working on it for over a month. Then, a check engine light came on that they could not get off. My car was in the shop since November 30th. My replacement will be here on Saturday. I got another BlueTec because I really love the diesel. The first bit of info I got while my car was in for repair was that there is a software issue and there is no estimate for when that will be available. Early this week, the GM told me they got an update from MBUSA and that the fix will be ready in 3-4 weeks.
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300D Turbo 1984
Thanks! I heard from a motorhead that Mercedes now uses a single Fiberoptic connection between the front and the back of the vehicle that controls everything from wheelspin sensor to door locks to tail lights.
From what I understood there is computer in the front that talks to the computer in the back via fiber optic and that eliminates a lot of wiring. This design seems to be "buggy" as hell.
IDK?> the truth behind this... any thoughts.
From what I understood there is computer in the front that talks to the computer in the back via fiber optic and that eliminates a lot of wiring. This design seems to be "buggy" as hell.
IDK?> the truth behind this... any thoughts.
Last edited by 300DTurbo; Jan 26, 2012 at 08:02 PM.
Thread Starter
Senior Member
Joined: Oct 2011
Posts: 357
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2012 ML 350 BlueTec
Thanks! I heard from a motorhead that Mercedes now uses a single Fiberoptic connection between the front and the back of the vehicle that controls everything from wheelspin sensor to door locks to tail lights.
From what I understood there is computer in the front that talks to the computer in the back via fiber optic and that eliminates a lot of wiring. This design seems to be "buggy" as hell.
IDK?> the truth behind this... any thoughts.
From what I understood there is computer in the front that talks to the computer in the back via fiber optic and that eliminates a lot of wiring. This design seems to be "buggy" as hell.
IDK?> the truth behind this... any thoughts.
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300D Turbo 1984
I have yet to have any issues with my 1984 benz. ( apples to molecular gastronomy... I get that )
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W212 E350
Nothing yet. I am on my second 2012 Bluetec, the first one was replaced. They both hesitate and buck like crazy when they are cold. I talked to a higher up at MBUSA and he was certain that it would be the first 10 days of February, but that has come and gone. It was the reason I was willing to get into another Bluetec since the supposed fix was coming so soon. I have his contact info and if there is no fix by the end of this week, I am going to be giving him a call. I will update as soon as I hear something.
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2009 ML320 BluTec
Brought my ml350 into service last week. Same problem as described above plus the adblue countdown started even though the tank was full. Mb did a software update and both the adblue level problem and the engine buckling are fixed.
