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  #1  
Old 06-15-2016, 12:26 AM
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Why does MDS suck so bad?

After 20,000 miles, I absolutely love my '15 SRT but really hate the MDS system. Yea I get that you can disable it with the flick of the shifter and yea I get that gov't fuel efficiency requirements put it there.

But at speeds under 60 and with frequent acceleration/deceleration, this vehicle can really drive like crap in normal mode. In fact, I've had passengers and friends I've let drive it ask me if something was wrong with the vehicle.

Do other performance SUVs have this system and if so is it better executed so it's not so noticeable? There has to be a better solution to the engine rumbling and feeling of slack in the drive train as MDS engages/disengages.


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Old 06-15-2016, 09:16 AM
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Re: Why does MDS suck so bad?

MDS has always sucked going back to the introduction of the new 5.7 years ago.

I had a 07 Overland with the 5.7 with the MDS. It sounded like a helicopter. Same with the SRT now. I literally always put it in Sport mode. I wish it could engage as soon as I turn the Jeep on. lol

The MDS has never improved.
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Old 06-15-2016, 09:22 AM
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Re: Why does MDS suck so bad?

You're not driving fast enough
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Old 06-15-2016, 09:30 AM
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Why does MDS suck so bad?

Quote:
Originally Posted by Heep View Post
You're not driving fast enough

I live in north Jersey. Traffic and local roads don't always make over 60 possible. Trust me, I push the beast when I can but the reality is I have to drive alot of miles at slower speeds



Agree RP - I've been doing the same shifting into sport at startup.


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Old 06-15-2016, 09:57 AM
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Re: Why does MDS suck so bad?

It's retarded and I hate it ! It feels like the car is being held back whenever MDS is active...no other car manufacturer has such a system I believe and Jeep would do well to get rid of it. No one buying an SRT gives a crap about fuel consumption anyway


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Old 06-15-2016, 10:23 AM
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Re: Why does MDS suck so bad?

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Originally Posted by sost1sg View Post
I live in north Jersey. Traffic and local roads don't always make over 60 possible. Trust me, I push the beast when I can but the reality is I have to drive alot of miles at slower speeds



Agree RP - I've been doing the same shifting into sport at startup.


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I'm just teasing anyway bud. I hate it too but honestly I rarely feel it during my daily drives
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Old 06-15-2016, 11:27 AM
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Re: Why does MDS suck so bad?

I don't know what you're talking about, really. I drive the hell out of my 2015 and MDS doesn't bother me at all. I only notice it when I'm in cruise with ECO on.

How exactly does this affect your driving? There's a ZERO delay for me going from MDS to non-MDS mode when stepping on the gas.
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Old 06-15-2016, 08:56 PM
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Re: Why does MDS suck so bad?

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Originally Posted by GlowingGhoul View Post
I don't know what you're talking about, really. I drive the hell out of my 2015 and MDS doesn't bother me at all. I only notice it when I'm in cruise with ECO on.

How exactly does this affect your driving? There's a ZERO delay for me going from MDS to non-MDS mode when stepping on the gas.
I can say in my experience, without doubt, that there is a delay in throttle response with MDS activated and as the MDS switches back off, especially around town. That seems to translate to a feeling of hesitation. It's not a huge difference, but I notice it particularly on part throttle acceleration.

In saying that, I drive with S selected on the trans almost exclusively. So the few times I've forgotten to flick the lever off D on start-up, and with the softer, slower shifts it has, makes it seem worse than I'm sure it would be, if I normally drove in D only. But it's definitely there.
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Old 06-15-2016, 09:35 PM
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Quote:
Originally Posted by Grunter View Post
I can say in my experience, without doubt, that there is a delay in throttle response with MDS activated and as the MDS switches back off, especially around town. That seems to translate to a feeling of hesitation. It's not a huge difference, but I notice it particularly on part throttle acceleration.

In saying that, I drive with S selected on the trans almost exclusively. So the few times I've forgotten to flick the lever off D on start-up, and with the softer, slower shifts it has, makes it seem worse than I'm sure it would be, if I normally drove in D only. But it's definitely there.
Couple hundred bucks and you can get a tuner and be done with MDS for good in all modes.
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Old 06-15-2016, 10:57 PM
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Re: Why does MDS suck so bad?

Yep, first thing I did to my SRT.
MDS blows!

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Couple hundred bucks and you can get a tuner and be done with MDS for good in all modes.
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Old 06-16-2016, 12:22 AM
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Re: Why does MDS suck so bad?

First thing I did for my old MY13 was to purchase a tuner, turn off MDS and get a custom tune. But given the small gains unless you are modifying a number of items on the MY15, seemed a bit over the top to buy a new ECU (if that's still a thing), and then a tuner for the MY15, just to remove MDS. Flick of the wrist into S on start-up and problem solved.
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Old 06-16-2016, 12:24 AM
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Re: Why does MDS suck so bad?

Quote:
Originally Posted by AuSuperchargedSRT View Post
Yep, first thing I did to my SRT.
MDS blows!
The second being turning your SRT into a torque monster.
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