Any experiencing super low idle in 550i?

BMWisFRIEND · 12-19-2016, 01:59 AM

Hey guys,

Recently replaced my spark plugs, all the spark plug hinge-coupling things, and the fuel rails.

First thing I noticed is how low the thing idles when in drive at normal operating temp. Is ~525RPM normal? There's no rattle, shake, or anything. It just seems so low though. When I let off of the brakes, the thing barely has enough power to move forward on it's own, for whatever reason. Performance is otherwise unhindered.

Let me know your thoughts, here's a quick vid for reference (yes I know I couldn't have chosen a worse website to post my video to, I'm sorry for that).

https://sendvid.com/qc8m0s7v

Simple5 · 12-19-2016, 09:57 AM

Kind of low... I usually hover in-between 700 and 1000 rpm.. confirmed with the Torque app and Bluetooth obd2 connector.. I am on JB Stage 1 though so I don't know if that matters any...

bcw550ix · 12-19-2016, 10:47 AM

Quote:

Originally Posted by Simple3

Kind of low... I usually hover in-between 700 and 1000 rpm.. confirmed with the Torque app and Bluetooth obd2 connector.. I am on JB Stage 1 though so I don't know if that matters any...

525 rpm at idle seems low to me as well.

Mbbrewer · 12-19-2016, 12:56 PM

Mine idles really low when the hvac is off

krautmeister · 12-19-2016, 09:49 PM

Quote:

Originally Posted by Mbbrewer

Mine idles really low when the hvac is off

+1

With AC button on, car idles 650 ish. Fully warm, without AC on, it idles 500 ish. Really has a lump sound to the exhaust.

RED99HT · 12-19-2016, 10:50 PM

That's normal, HVAC on it idles around 700

EL Jeffe 5 · 12-25-2016, 07:12 PM

thats normal

12-19-2016, 01:59 AM	#1
BMWisFRIEND Private First Class 29 Rep 105 Posts Drives: '21 BMW M550i Join Date: Mar 2016 Location: San Diego iTrader: (0)	Any experiencing super low idle in 550i? Hey guys, Recently replaced my spark plugs, all the spark plug hinge-coupling things, and the fuel rails. First thing I noticed is how low the thing idles when in drive at normal operating temp. Is ~525RPM normal? There's no rattle, shake, or anything. It just seems so low though. When I let off of the brakes, the thing barely has enough power to move forward on it's own, for whatever reason. Performance is otherwise unhindered. Let me know your thoughts, here's a quick vid for reference (yes I know I couldn't have chosen a worse website to post my video to, I'm sorry for that). https://sendvid.com/qc8m0s7v
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12-19-2016, 09:57 AM	#2
Simple5 Major 347 Rep 1,399 Posts Drives: 2013 M5 Join Date: Jul 2011 Location: USA iTrader: (8)	Kind of low... I usually hover in-between 700 and 1000 rpm.. confirmed with the Torque app and Bluetooth obd2 connector.. I am on JB Stage 1 though so I don't know if that matters any...
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12-19-2016, 12:56 PM	#4
Mbbrewer Captain 150 Rep 672 Posts Drives: 550i Join Date: Apr 2012 Location: Houston iTrader: (1)	Mine idles really low when the hvac is off
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12-19-2016, 10:50 PM	#6
RED99HT Private First Class 69 Rep 103 Posts Drives: 21 M850i Join Date: Jan 2014 Location: Charlotte iTrader: (0)	That's normal, HVAC on it idles around 700
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12-25-2016, 07:12 PM	#7
EL Jeffe 5 Major 612 Rep 1,254 Posts Drives: CBR1000RR Join Date: Aug 2015 Location: Iowa iTrader: (0)	thats normal __________________
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