N55 turbo engine need to wait before stop engine? - BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)

hajimers · 10-30-2011, 04:08 PM

Hi, I am wondering if the N55 turbo inline 6 engine has a pump to circulate oil even after we stop engine? In other words, do I have to have the car stand by for 1 -2 mins before I stop my engine after my ride? Thanks!

ParkNuts · 10-30-2011, 04:16 PM

I've been told once you lock the doors, an oil pump will circulate oil so there is no need to idle the motor. Just don't go WOT too soon before shutting it off.

Dackelone · 10-30-2011, 04:24 PM

It is always a good idea to let the turbo cool down after a long drive or just ragging on it.

hajimers · 10-30-2011, 04:30 PM

Good response, thanks! The problem is, I don't think I ever heard the pump circulating after either long or short drive. So I am wondering if idling is required, and paying for > $40k for the car,I couldn't believe BMW doesn't have such technology present.

Tony135 · 10-30-2011, 04:48 PM

I've heard that they do have the pump. I've recently been just driving it with confidence in the pump. However, if I'm driving HARD in a canyon or something, I'll let it idle for a minute or so anyway just in case. For day to day driving, you should be ok though.

1speedbike · 10-30-2011, 04:57 PM

If you drive it hard, let it settle down for a minute before you shut it off. If you've been driving normally, then there is no need to wait. You should hear a weird electronic noise (kind of like a buzzing), and sometimes a drippy-type sound, that lets you know the oil is still circulating.

10-30-2011, 04:08 PM	#1
hajimers Registered Drives: 2011 135i Convertible Join Date: Oct 2011 Location: United States Posts: 2 iTrader: (0)	N55 turbo engine need to wait before stop engine? Hi, I am wondering if the N55 turbo inline 6 engine has a pump to circulate oil even after we stop engine? In other words, do I have to have the car stand by for 1 -2 mins before I stop my engine after my ride? Thanks!
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10-30-2011, 04:57 PM	#6
1speedbike Colonel Drives: 2008 BMW 135i Join Date: Jun 2008 Location: NJ, NYC, Baltimore Posts: 2,924 iTrader: (14)	If you drive it hard, let it settle down for a minute before you shut it off. If you've been driving normally, then there is no need to wait. You should hear a weird electronic noise (kind of like a buzzing), and sometimes a drippy-type sound, that lets you know the oil is still circulating. __________________ Year 1 of the 1

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10-30-2011, 04:16 PM	#2
ParkNuts Second Lieutenant Drives: 2011 135i DCT Join Date: Apr 2011 Location: Dallas Posts: 287 iTrader: (0)	I've been told once you lock the doors, an oil pump will circulate oil so there is no need to idle the motor. Just don't go WOT too soon before shutting it off.

10-30-2011, 04:24 PM	#3
Dackelone Moderator Drives: 135i Silber mit/Rot 6MT N54 Join Date: Feb 2010 Location: Bayern, Germany Posts: 13,327 iTrader: (0)	It is always a good idea to let the turbo cool down after a long drive or just ragging on it.

10-30-2011, 04:30 PM	#4
hajimers Registered Drives: 2011 135i Convertible Join Date: Oct 2011 Location: United States Posts: 2 iTrader: (0)	Good response, thanks! The problem is, I don't think I ever heard the pump circulating after either long or short drive. So I am wondering if idling is required, and paying for > $40k for the car,I couldn't believe BMW doesn't have such technology present.

10-30-2011, 04:48 PM	#5
Tony135 Major Drives: 2012 BMW 135i Join Date: May 2011 Location: SoCal Posts: 1,034 iTrader: (0)	I've heard that they do have the pump. I've recently been just driving it with confidence in the pump. However, if I'm driving HARD in a canyon or something, I'll let it idle for a minute or so anyway just in case. For day to day driving, you should be ok though.