Does your M235 idle smoothly (Dinan)

CO_Steve · 07-21-2017, 07:17 PM

I have a '15 M235 with the Dinan S1 package. Car runs fantastic but at idle it has a bit of a stumble. Not bad but not perfect either. I need to turn the tune off to see if that is the problem but does anyone else notice this?

BEM-S4 · 07-21-2017, 07:42 PM

Just on startup mine can be a bit sketchy for maybe 30 seconds.

LiuC · 07-21-2017, 11:05 PM

Mine stage 2 (same as s1 pack) right at start up is a tinny bit rough, not much but just enough to notice, and usually gone right away after couple second when idle drops abit.
Then again I'm not running dinan exhaust and intake tho.

amw896 · 07-22-2017, 09:09 AM

check spark plugs...what is your mileage?

CO_Steve · 07-22-2017, 09:35 AM

Just passed 20k miles. Forgot to mention it's more noticeable with the A/C running.

wjjkoevoets · 07-22-2017, 11:09 AM

Quote:

Originally Posted by BEM-S4

Just on startup mine can be a bit sketchy for maybe 30 seconds.

Same here. After it goes through the cold-start process all is good and well.

I recently had my spark plugs replaced at 40,000 miles and it has improved behavior up to the point where it felt I had just bought the car new again. No complaints here.

2msport · 07-22-2017, 11:34 AM

Replace with m3/m4 spark plugs. They run cooler and last longer because of the lower Temps. Helpful when having a tune.

Paisano · 07-23-2017, 04:07 AM

Dinana S3 and only time there is an idle difference is with AC running. Seems as if the Dinana does not jive with the AC being operational...when shifting gears I really notice a severe drop in RPM.
P.s. Had the Dinan software updated and still having the same issue.

mike@x-ph.com · 07-25-2017, 02:24 PM

Probably one of the spark plugs going bad

CO_Steve · 07-27-2017, 11:29 AM

There seem to be a lot of different spark plugs recommended. NGKs seem cheaper but which ones? One step colder? 97506, 95770?

07-21-2017, 07:17 PM	#1
CO_Steve Second Lieutenant 112 Rep 233 Posts Drives: '15 M235 Dinan S1 MT Slicktop Join Date: Apr 2017 Location: Colorado iTrader: (0)	Does your M235 idle smoothly (Dinan) I have a '15 M235 with the Dinan S1 package. Car runs fantastic but at idle it has a bit of a stumble. Not bad but not perfect either. I need to turn the tune off to see if that is the problem but does anyone else notice this?
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07-21-2017, 07:42 PM	#2
BEM-S4 Major General 4516 Rep 8,942 Posts Drives: Dinan M235, Dinan Sport Wagon Join Date: Oct 2012 Location: Philadelphia iTrader: (5)	Just on startup mine can be a bit sketchy for maybe 30 seconds. __________________ 2022 Macan S 2016 F31 328i xDrive Sport Wagon 2006 E46 330ci ZHP Convertible
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07-21-2017, 11:05 PM	#3
LiuC Private 28 Rep 68 Posts Drives: M235i Join Date: Jan 2017 Location: Vancouver BC iTrader: (0)	Mine stage 2 (same as s1 pack) right at start up is a tinny bit rough, not much but just enough to notice, and usually gone right away after couple second when idle drops abit. Then again I'm not running dinan exhaust and intake tho.
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07-22-2017, 09:09 AM	#4
amw896 Major 583 Rep 1,117 Posts Drives: 2015 BMW M235i Join Date: Feb 2016 Location: ontario iTrader: (0) Garage List 2015 BMW M235i [10.00]	check spark plugs...what is your mileage?
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07-22-2017, 09:35 AM	#5
CO_Steve Second Lieutenant 112 Rep 233 Posts Drives: '15 M235 Dinan S1 MT Slicktop Join Date: Apr 2017 Location: Colorado iTrader: (0)	Just passed 20k miles. Forgot to mention it's more noticeable with the A/C running.
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07-22-2017, 11:34 AM	#7
2msport Captain 204 Rep 757 Posts Drives: '14 228 MT Join Date: Apr 2014 Location: NY iTrader: (1)	Replace with m3/m4 spark plugs. They run cooler and last longer because of the lower Temps. Helpful when having a tune.
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07-23-2017, 04:07 AM	#8
Paisano Private 21 Rep 80 Posts Drives: M4 Comp Join Date: Feb 2017 Location: Canada iTrader: (0)	Dinana S3 and only time there is an idle difference is with AC running. Seems as if the Dinana does not jive with the AC being operational...when shifting gears I really notice a severe drop in RPM. P.s. Had the Dinan software updated and still having the same issue.
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07-25-2017, 02:24 PM	#9
mike@x-ph.com Joint Chiefs of Staff 24180 Rep 190,777 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Probably one of the spark plugs going bad __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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07-27-2017, 11:29 AM	#10
CO_Steve Second Lieutenant 112 Rep 233 Posts Drives: '15 M235 Dinan S1 MT Slicktop Join Date: Apr 2017 Location: Colorado iTrader: (0)	There seem to be a lot of different spark plugs recommended. NGKs seem cheaper but which ones? One step colder? 97506, 95770?
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