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I just ordered he Intune DCX for my 2013 Charger RT. Heard you can turn off the MDS. Does anyone know if you can and if so, how? Thanks
 

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Go to apply a tune, it is under the adjustable parameters. It will be a button labeled "MDS".
 

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what is MDS and what is its purpose?
 

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MDS: Multiple Displacement System.
In the 5.7's and 6.4's w/Automatic transmission, it is a system that disables 4 of the 8 cylinders when they are absolutely not needed. Turns them back on within a split second when they are needed such as slamming the gas pedal down. So when you are cruising on an interstate at 65 with or without cruise control on, you are actually running on 4 cylinders. Slam the gas pedal to pass a trucker going 55 or a granny, and within that split second or less, all 8 cylinders are kicking.
It's purpose to improve fuel economy. Which in my opinion it successfully does so and I leave it on. Dodge/Chrysler state that the system saved overall millions of gallons of gas.
 

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thank you! i was sitting here wondering what people were talking about when they said MDS and couldnt understand before.

thank you for taking the time to help me and thank you for your service Hriv.
 

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thank you! i was sitting here wondering what people were talking about when they said MDS and couldnt understand before.

thank you for taking the time to help me and thank you for your service Hriv.
It's mostly a seamless system... until you install the diablo, then it gets aggravating and irritating. Plus, the early engines appear to have a problem with dropping valves that may be related to the uneven cylinder head cooling.
 

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It's also caused broken timing chains in the eagle engine.
 
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