ML55 AMG, ML63 AMG (W163, W164) 1999 - 2011 Two Generations

Stuttering, Delayed response with my ML 63

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Old Apr 24, 2008 | 04:30 PM
  #1  
Nikpour's Avatar
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Mercedes Benz ML 63
Exclamation Stuttering, Delayed response with my ML 63

Can anyone give me some advice ?

I have a 2007 ML 63 AMG which "stutters" or has delayed response when the engine is cold especially after a cold night. This is kind of dangerous especially if you want to pull out onto a busy street and then suddenly there is no immediate response from the engine.
This problem suddenly appeared after I got a software update a few months ago. It feels like the engine is not getting enough gas or the mix is too lean.
I had the car at the dealer now for 3 times but they deny that there is anything wrong with the car.

Anyone out there who experienced the same problem ?
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Old Apr 24, 2008 | 08:45 PM
  #2  
kokanee's Avatar
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From: Vancouver Canada
07 ML63 Silver Dead at 85k, 14 RS5, 05 SL600
bad gas?. Mine doesn't like to be revved high until it is warm but its a traction control issue that ony appears if I totally go for it when cold without the traction control turned down.
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Old Apr 25, 2008 | 08:55 AM
  #3  
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From: Midwest
'08 SL550 Sport, '11 BMW 550ix M sport
Maybe try Sprint Booster? May not fix the problem but it improves throttle response.
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Old Apr 25, 2008 | 10:58 PM
  #4  
Maverick1975's Avatar
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From: Sydney, Australia
Vath ML63 Brabus C63 SL63 CLK63BS C63BS
what is a sprint booster, ho much is it an what does it involve and what does it do to the car's warranty. I love my ML63's acceleration but always keen for more power! pls help
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Old Apr 26, 2008 | 07:54 AM
  #5  
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From: Midwest
'08 SL550 Sport, '11 BMW 550ix M sport
See this thread, it'll explain it.

https://mbworld.org/forums/showthrea...booster+sprint

Plus, if you do a search, there are lots of threads on the subject.

Good Luck!
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Old Apr 26, 2008 | 12:28 PM
  #6  
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From: Vancouver Canada
07 ML63 Silver Dead at 85k, 14 RS5, 05 SL600
I don't think it is the kind of thing that will hurt your warranty. My dealer's service manger is bringing them in and offered me one. Apparently it will work on the 600 as well.
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Old Apr 30, 2008 | 08:42 AM
  #7  
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ML 320 CDI 2008
YEP!,ML 320 CDI just purchased and has a accelerator lag from standstill,although where I live the temp never goues below 18 deg celsius.Its going in tomorow for a soft ware update
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Old May 2, 2008 | 12:53 PM
  #8  
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215
I have the same problem, after my tranny was replaced, the hesitation is like 5 seconds sometimes.

I will NEVER buy a Mercedes built in Alabama EVER again.

I should of just got the G55 and called it a day
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