Rpm goes up while on park

Teetran · 09-25-2020, 06:22 PM

Hi
Wondering if anyone have the same issue as me. I just turned on my car and on park for 5-10mins then all of sudden the rpm went to nearly 1000x rpm and it stays there for a while then I shut the engine off. And it's back to normal. Let me know if anyone notice it

Admiral · 09-26-2020, 01:44 AM

Only when checking the Oil measurement, at no other time, sorry I can't think why otherwise that this happens, maybe whilst you experience the RPM increasing go and and check if this is happening in Idrive, sounds stupid but there may be a glitch

Alex C. · 09-26-2020, 02:31 AM

A/c maybe. I notice my rpms go up slightly when ac is on full

Ravenous666 · 09-26-2020, 01:37 PM

Why should you run in idle for 10 minutes while in park?

Teetran · 09-26-2020, 01:39 PM

Quote:

Originally Posted by Ravenous666

Why should you run in idle for 10 minutes while in park?

When the engine is on, the suv idles.....

Teetran · 09-26-2020, 01:40 PM

Quote:

Originally Posted by Admiral

Only when checking the Oil measurement, at no other time, sorry I can't think why otherwise that this happens, maybe whilst you experience the RPM increasing go and and check if this is happening in Idrive, sounds stupid but there may be a glitch

It just does it while on park, planning to take it to the dealership in a couple weeks

clivem2 · 09-27-2020, 05:34 AM

Are you not worrying unduly? 1,000 rpm is not particularly high. Everything is software controlled. After an extended period of idling (no moving air for cooling) it’s likely the electric fan will operate; maybe a few extra revs are required for the alternator to maintain battery charge.

HighlandPete · 09-27-2020, 07:23 AM

Raised rpm idle has been a function of BMW cars for at least 20-years.

AC and energy management, can use extra rpm to function correctly. Can depend on electrical load and battery SoC, as you idle. Alternator may simply not be keeping up with demand on prolonged idle, without increasing rpm.

A function of Idle Speed Control...

Quote:

The set engine speed when idling depends on different conditions, for example coolant temperature or power requirement of the auxiliary components.

mreg376 · 09-27-2020, 07:26 AM

Quote:

Originally Posted by Ravenous666

Why should you run in idle for 10 minutes while in park?

Good question. Maybe all of our vehicles do it, but who would sit around with the car idling for 10 minutes to find out?

clivem2 · 09-27-2020, 07:54 AM

Idling unnecessarily on a public highway is even illegal in at least one country...

383vett · 09-27-2020, 11:09 AM

You could simply turn the motor off. If it's warm, lower the windows.

Ravenous666 · 09-27-2020, 11:31 AM

Running in idle while parked is illegal in Germany and will be sued with a fine of at least €80,-

09-25-2020, 06:22 PM	#1
Teetran Private First Class 34 Rep 108 Posts Drives: 2020 M2C Join Date: Sep 2018 Location: Charlotte iTrader: (0)	Rpm goes up while on park Hi Wondering if anyone have the same issue as me. I just turned on my car and on park for 5-10mins then all of sudden the rpm went to nearly 1000x rpm and it stays there for a while then I shut the engine off. And it's back to normal. Let me know if anyone notice it
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09-26-2020, 01:44 AM	#2
Admiral Lieutenant 776 Rep 593 Posts Drives: 2019 BMW X3 2.0D X Line G01 Join Date: Nov 2019 Location: Cymru UK iTrader: (0)	Only when checking the Oil measurement, at no other time, sorry I can't think why otherwise that this happens, maybe whilst you experience the RPM increasing go and and check if this is happening in Idrive, sounds stupid but there may be a glitch
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09-26-2020, 02:31 AM	#3
Alex C. Private First Class 66 Rep 168 Posts Drives: 2019 Bmw X3 xdrive30i Join Date: Nov 2019 Location: United States, MD iTrader: (0) Garage List 2018 Bmw x3 xdrive30i [0.00]	A/c maybe. I notice my rpms go up slightly when ac is on full
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09-26-2020, 01:37 PM	#4
Ravenous666 Captain 537 Rep 745 Posts Drives: 2020 BMW X3 & 2024 BMW X3 Join Date: Jan 2020 Location: Hamburg iTrader: (0)	Why should you run in idle for 10 minutes while in park?
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09-27-2020, 05:34 AM	#7
clivem2 Colonel 541 Rep 2,073 Posts Drives: X3 M40i Join Date: Aug 2008 Location: UK iTrader: (0)	Are you not worrying unduly? 1,000 rpm is not particularly high. Everything is software controlled. After an extended period of idling (no moving air for cooling) it’s likely the electric fan will operate; maybe a few extra revs are required for the alternator to maintain battery charge. __________________ Current: G01 M40i Silver / Tartufo Previous: E30 318iS, E39 520i 523i 523i, E46 vert 330i 330i, E93 vert 335i, F25 30D 35D
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09-27-2020, 07:54 AM	#10
clivem2 Colonel 541 Rep 2,073 Posts Drives: X3 M40i Join Date: Aug 2008 Location: UK iTrader: (0)	Idling unnecessarily on a public highway is even illegal in at least one country...
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09-27-2020, 11:09 AM	#11
383vett Major 626 Rep 1,044 Posts Drives: 2018 X3 M40i, 2012 X3 Xdrive35 Join Date: Aug 2012 Location: Moraga, California iTrader: (0)	You could simply turn the motor off. If it's warm, lower the windows. __________________ 2016 Z06 Vette, 10.53@132 1984 Vette, 406, 10.23@131 2021 SQ5
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09-27-2020, 11:31 AM	#12
Ravenous666 Captain 537 Rep 745 Posts Drives: 2020 BMW X3 & 2024 BMW X3 Join Date: Jan 2020 Location: Hamburg iTrader: (0)	Running in idle while parked is illegal in Germany and will be sued with a fine of at least €80,-
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