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Old 05-05-2019, 01:52 PM
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Rear hatch does not open fully

The power rear hatch on our 2012 ML350 Bluetec does not seem to open fully. It will open and close fine with the key fob or the button on the door, but I'm constantly hitting my head (I'm only 5'10) on it when it is open. At the full extent of its power travel when it reaches the upper limit, you can manually push it up another 3-4 inches of travel.

Is there a way to adjust this so it opens fully, or am I doomed to bumping my head?

Many thanks!
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2012 Mercedes ML350 Bluetec 45K (hers)
2002 VW Jetta TDI 199K (mine)
1998 Volvo S70 T5 Turbo 145K (kids)
1992 Ford F150 4WD 258K (wood getter)
1983 Mercedes 300D 337K (diesel commuter)
1965 Corvair Corsa 98K (fun car)
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Old 05-05-2019, 09:13 PM
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Using the latch open the hatch. Press the close button when you reach your desired height. You should hear one tone. To clear the height press the close button for 2-3 seconds, you should hear two tones. Send me your email address and I will send you a video on the procedure.
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Old 05-06-2019, 09:25 AM
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That is how it’s supposed to work. On the W166 they used a linear actuator (electromagnetic coils in the shock absorbers) to lift the hatch. This allows infinite adjustment of the opening height. This is designed so that you can set it up to not hit your garage door. When you are in the clear it is permissible to manually raise the hatch the rest of the way by gently pushing up on it.

Contrast this with the W164 system that uses a hydraulic pump. This one you cannot move the hatch yourself.
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The OM 642/722.9 powered family
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)
2008 ML320 CDI (Older sonís DD)
2008 E320 Bluetec (Younger son's DD)

1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
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1983 240D (body to greazzer, engine to t walgamuth)
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Old 05-07-2019, 09:41 AM
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Quote:
Originally Posted by BWhitmore View Post
Using the latch open the hatch. Press the close button when you reach your desired height. You should hear one tone. To clear the height press the close button for 2-3 seconds, you should hear two tones. Send me your email address and I will send you a video on the procedure.
Worked like a charm! No more banging my head (my 6'2 kids either) Thank you!!
__________________
2012 Mercedes ML350 Bluetec 45K (hers)
2002 VW Jetta TDI 199K (mine)
1998 Volvo S70 T5 Turbo 145K (kids)
1992 Ford F150 4WD 258K (wood getter)
1983 Mercedes 300D 337K (diesel commuter)
1965 Corvair Corsa 98K (fun car)
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  #5  
Old 05-07-2019, 11:22 AM
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Happy to help. I had the same issue on my ML.
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