New '14 300 SRT, resistance when coasting? - Chrysler 300C Forum: 300C & SRT8 Forums
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Old 05-31-2015, 02:15 PM   #1 (permalink)
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New '14 300 SRT, resistance when coasting?

Hello, I'm a new member, have a 1 week old new 2014 300 SRT, black, laguna leather, nearly all options, awesome. I'm a previous owner of a 2008 Jeep SRT8 that I drove for 7 years and loved every moment. The 300 was driven 600 miles and delivered to me, driver did not report issues. I've noticed from day 2 that there seems to be a resistance holding the car back almost like the brakes are not fully releasing. Its especially apparent in traffic when foot is off accelerator and speed drops to 35-45 mph. If I don't accelerate after a few seconds, the deceleration increases and the car may even jerk a bit, like its in a low gear. When I accelerate, it seems to go away. I've double checked to make sure car is in automatic, drive mode, brake is off, cruise is off. I have an appointment with the dealer this week but was wondering if anyone else has had this issue and if there is a quick fix that I am missing.
Thanks.
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Old 05-31-2015, 04:09 PM   #2 (permalink)
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What your describing to me sounds like the normal retardation these cars have. After a couple of seconds with your foot off it starts dropping your speed
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Old 05-31-2015, 04:27 PM   #3 (permalink)
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Thanks for the reply. If you are correct, that would seem to be a drawback. Is there any advantage, why does it do this and is it specific to the SRT?
Thanks again.
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Old 05-31-2015, 05:26 PM   #4 (permalink)
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No idea, but I find it really handy. Just near home there is a roundabout at the bottom of a steep hill.
As I start going down the hill I drop it into second and for the first 3 seconds my speedo hardly moves and then its like I have the brakes on and watch the speed drop going down a steep hill.
Saves a lot on brake wear.
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Old 05-31-2015, 05:43 PM   #5 (permalink)
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Ok, understandable if driving in manuel and downshifting, interesting that it does it in automatic though. And on flat road. Seems the saving on brake wear might be offset by increased gas needs.
I'll let you know what the dealer says, but I suspect you are right.
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Old 05-31-2015, 06:44 PM   #6 (permalink)
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The transmission programming starts down shifting when the throttle is lifted. There is no "coasting" in these cars unless it's downhill in Neutral.
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Old 05-31-2015, 07:07 PM   #7 (permalink)
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Isn't that only supposed to happen when you oversteer a corner turn?
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Old 06-01-2015, 12:18 PM   #8 (permalink)
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Keep an eye on the rev counter and you should see an initial rpm increase as you begin to slow down. At least, that's what happens with the CRD and also with my Audi A4.
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Old 06-02-2015, 08:49 AM   #9 (permalink)
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Yup, this is normal in these cars.

The car will slow itself down and then start downshifting.
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Old 06-02-2015, 10:36 AM   #10 (permalink)
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Thank you all for your replies.
Are there speed parameters where it starts to do this and is it always consistent?
I've found on mine it tends to come and go. Sometimes I can coast without the resistance others not. Also more apparent at lower speeds.
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