Vibration from 7 G Tronic? - Mercedes-Benz Forum

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post #1 of 1 (permalink) Old 01-15-2013, 07:16 AM Thread Starter
BenzWorld Member
Date registered: Jun 2005
Vehicle: 07 R 280 CDI
Posts: 217
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(Thread Starter)
Vibration from 7 G Tronic?

Tried the R section without luck, so I try here;

My 2007 R 280 CDI with 7 G Tronic has a strange thing which I cannot figure out. The car has distronic, and the first time I noticed this problem was when the car was accelerating with the distronic engaged. Lets say I'm cruising along in 60 mph, and a slower car moves in front of me. My car slows down. When the car in front moves away and my car accelerates again, the gearbox shifts down. Just when the car (try to?) shifts down, the hole car vibrates sharply for some tenths of a second. If I disengage the distronic and accelerate in the same speed while I shift down manually, the vibration does not appear. Been studying this for some time, it seems if the car tries to uppshift but then goes back to it's previous level.
It seems that this thing only happens when I'm in the upper gears.

When I for instance hammer it from 1. gear and let it go through the gears on full throttle it does not happen. The car shifts up and down super smooth all the time.

Any tips?

2007 R 280 CDI
2009 BMW K1300S

x -CLS 350
x -CL 500
x -R 320 CDI
x -500 SL
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