M-Class (W166) Produced 2012-2015

Stalling? Weird issues

Old Nov 25, 2015 | 12:33 AM
  #1  
eggyacid's Avatar
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10 Year Member
 
Joined: May 2013
Posts: 115
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From: DFW Area
ML-350, Audi Q7, Ford Taurus
Stalling? Weird issues

Yesterday, after I started the engine all the lights stayed-on on the instrument cluster. Shut it off and starts again, it started rights up with no issues.
This morning, starting my car and I noticed the rpm was gittery like almost going to stall. Again, shut off and starts back up like normal.

Is it just the battery getting weak?
How much do you all think a new battery will cost? 2012 ML-350.
Is it something other shops can do or is it only they dealership?
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Old Nov 26, 2015 | 02:03 PM
  #2  
Nanook's Avatar
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Joined: Aug 2013
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From: Alberta, Canada
'18 GLE63S AMG /'19 PORSCHE TURBO S / '09 CORVETTE ZR1 /'14 LEXUS RX350/'16 RAV4 Ltd
Seems early to need replacing..get it tested
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Old Nov 27, 2015 | 05:36 AM
  #3  
350MH83's Avatar
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Joined: Oct 2013
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From: Western Europe
2017 GLS 350d
Weak battery would not lead to the engine almost stalling. It would just not start it. To me it sounds more like a fuel pump, or ignition issue (if it's a petrol 350).
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Old Dec 7, 2015 | 01:24 PM
  #4  
hdg123's Avatar
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ML350
Had similar issues with my 2013 ML 350 start sputter and or die. Often times on the second trip of the day. Took in to the dealer it was a software update. It fixed the problem start without any issues... RO states "updated engine control unit software as per LI07..08-P-055310. Hope that helps
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