Cold start rpms

sam2428 · 02-15-2010, 08:12 AM

I couldn't find this in the search...

I noticed a couple of times in the morning, when I cold start my engine...the rpms go up slightly to about 2k and then drops back down. It only lasts a few seconds but i was concerned...It has never done this before. I'm hoping it is only due to the cold weather...

Anyone else experience this?

cn555ic · 02-15-2010, 08:21 AM

Normal when its cold outside

sam2428 · 02-15-2010, 08:24 AM

Thanks!

seems like anything out of the norm and i start worrying about it leading to a HPFP failure lol

bmw6953 · 02-15-2010, 10:22 AM

Its not the HPFP its just the cold weather and if you have not used your car in a few days it dose the same thing.

645Nm · 02-15-2010, 01:11 PM

very normal. Wait for the revs to settle before driving off. Good start up procedure on cold days.

E92-Lighting · 02-15-2010, 01:27 PM

normal when cold

Oulixes · 02-15-2010, 06:38 PM

Quote:

Originally Posted by sam2428

I couldn't find this in the search...

I noticed a couple of times in the morning, when I cold start my engine...the rpms go up slightly to about 2k and then drops back down. It only lasts a few seconds but i was concerned...It has never done this before. I'm hoping it is only due to the cold weather...

Anyone else experience this?

The idling depends on temperature, and what you have noticed is normal. Do not worry about it as long as the cold start rpms stay reasonable.

02-15-2010, 08:12 AM	#1
sam2428 Second Lieutenant 22 Rep 247 Posts Drives: 2008 335i Coupe - Alpine White Join Date: Feb 2010 Location: Houston, TX iTrader: (0)	Cold start rpms I couldn't find this in the search... I noticed a couple of times in the morning, when I cold start my engine...the rpms go up slightly to about 2k and then drops back down. It only lasts a few seconds but i was concerned...It has never done this before. I'm hoping it is only due to the cold weather... Anyone else experience this?
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02-15-2010, 08:21 AM	#2
cn555ic 441 Rep 18,331 Posts Drives: 335i Join Date: Jun 2007 Location: US iTrader: (6)	Normal when its cold outside
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02-15-2010, 08:24 AM	#3
sam2428 Second Lieutenant 22 Rep 247 Posts Drives: 2008 335i Coupe - Alpine White Join Date: Feb 2010 Location: Houston, TX iTrader: (0)	Thanks! seems like anything out of the norm and i start worrying about it leading to a HPFP failure lol
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02-15-2010, 10:22 AM	#4
bmw6953 Second Lieutenant 23 Rep 257 Posts Drives: 2006 325i Join Date: Oct 2008 Location: california iTrader: (0)	Its not the HPFP its just the cold weather and if you have not used your car in a few days it dose the same thing.
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02-15-2010, 01:11 PM	#5
645Nm only in it for the torque - awuleth'umshini wami 50 Rep 425 Posts Drives: sapphire black 335i Join Date: Apr 2009 Location: nomad iTrader: (0) Garage List 2009 335i sedan [0.00] 2005 120D [0.00] 2007 335i sedan [0.00]	very normal. Wait for the revs to settle before driving off. Good start up procedure on cold days. __________________
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02-15-2010, 01:27 PM	#6
E92-Lighting 860 Rep 35,253 Posts Drives: Next Generation LED Lighting Join Date: May 2008 Location: Walnut iTrader: (324)	normal when cold
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