What RPM does your N52 idle at?

bimmerboyE92 · 07-16-2016, 10:37 PM

Just bought a 2010 128i with 60,000 miles.

With it warmed up, still in drive but stopped, and no AC or lights, it idles at 750 rpm according to the tack. Is this what you guys are seeing as well?

Suhb · 07-17-2016, 06:34 AM

Mine idles at 600. Although it can be a slightly rough idle at times. With the AC on, it idles buttery smooth at 700.

Also 2010. 88k miles.

RetroGrade · 07-21-2016, 10:11 AM

625. 31K miles.

OCDJ · 07-21-2016, 10:34 PM

700 when warm. Mine's got almost ~69k miles.

Fume · 07-22-2016, 02:34 PM

I get around 600RPM idle as well without AC and around 700RPM with AC.

bimmerboyE92 · 07-22-2016, 09:13 PM

Thanks for the responses... I'll have the dealer pull codes but no CEL is on.

What could cause a slightly higher than normal idle?

honestzergtea · 07-26-2016, 01:39 AM

2009 with about 68k here.

650rpm on idle and around 700~750 with A/C on. hope this helps!

07-16-2016, 10:37 PM	#1
bimmerboyE92 Captain 412 Rep 737 Posts Drives: BMW Join Date: Oct 2014 Location: Louisville, KY iTrader: (4) Garage List 2001 Miata NB K24Z3 [0.00] 1990 Miata NA 1.8 VVT [0.00] 1995 BMW M3 [0.00] 2016 BMW M3 [0.00]	What RPM does your N52 idle at? Just bought a 2010 128i with 60,000 miles. With it warmed up, still in drive but stopped, and no AC or lights, it idles at 750 rpm according to the tack. Is this what you guys are seeing as well?
	Appreciate 0 Tweet Quote

07-17-2016, 06:34 AM	#2
Suhb First Lieutenant 119 Rep 377 Posts Drives: 2010 128i Coupe 6-Speed Join Date: Dec 2012 Location: PA iTrader: (3)	Mine idles at 600. Although it can be a slightly rough idle at times. With the AC on, it idles buttery smooth at 700. Also 2010. 88k miles.
	Appreciate 0 Quote

07-21-2016, 10:11 AM	#3
RetroGrade Enlisted Member 6 Rep 34 Posts Drives: 128i M Sport LMB Join Date: Jan 2016 Location: Mt. Prospect, IL iTrader: (0)	625. 31K miles.
	Appreciate 0 Quote

07-21-2016, 10:34 PM	#4
OCDJ OCD Cinema 2 Rep 10 Posts Drives: '11 SGM 128i Coupe 6MT Join Date: Jun 2016 Location: Chicago iTrader: (0)	700 when warm. Mine's got almost ~69k miles. __________________ 2011 128i Coupe \| 6MT \| Space Grey Metallic UIUC Mechanical Engineering '18 Student
	Appreciate 0 Quote

07-22-2016, 02:34 PM	#5
Fume First Lieutenant 52 Rep 374 Posts Drives: '19 Porsche 718 Cayman GTS Join Date: Jul 2013 Location: Seattle iTrader: (1)	I get around 600RPM idle as well without AC and around 700RPM with AC. __________________ New Car: 2019 Porsche 718 Cayman GTS \| Stock for now Old Car: 2013 BMW 128i \| 6MT \| BMW Performance Grills \| CDV Delete \| SSK \| Performance Exhaust \| M3 RSFB \| TCKR DA
	Appreciate 0 Quote

07-22-2016, 09:13 PM	#6
bimmerboyE92 Captain 412 Rep 737 Posts Drives: BMW Join Date: Oct 2014 Location: Louisville, KY iTrader: (4) Garage List 2001 Miata NB K24Z3 [0.00] 1990 Miata NA 1.8 VVT [0.00] 1995 BMW M3 [0.00] 2016 BMW M3 [0.00]	Thanks for the responses... I'll have the dealer pull codes but no CEL is on. What could cause a slightly higher than normal idle?
	Appreciate 0 Quote

07-26-2016, 01:39 AM	#7
honestzergtea Enlisted Member 9 Rep 38 Posts Drives: 2010 335d Join Date: Sep 2015 Location: Dallas TX iTrader: (1)	2009 with about 68k here. 650rpm on idle and around 700~750 with A/C on. hope this helps!
	Appreciate 0 Quote