Lesson #124

noro · 04-27-2007, 09:48 AM

Hi all,

wanted to share a little trick.

at 1800 miles I decided to change the oil used to break-in the car. I went with the Mobil 1 - 0w40.

Lifted the car, unscrewed the oil plug, and the oil SPRAYED out of the car like it was an aerosol can. Thankfully my brain cells gathered up quickly and I realized that the key was inserted. Now this car is not advertised as a dry sump vehicle but there must be a some kind of a pump (oil pump) that attempts to lubricate the motor as soon as you insert the key. As soon as I removed the key the oil flow turned into a normal stream just as expected to come out of an oil pan.

LEDZEP · 04-27-2007, 09:55 AM

That's a great tip! Hope the mess wasn't too bad.

Sea2Ski · 04-27-2007, 10:18 AM

Noted!!! Thanks for the great tip!!!!

..learning from the mistakes/experiences of others....

Revlis · 04-27-2007, 10:34 AM

Actually that is a great tip, will help speed up my oil changes!!!!

e30klassic · 04-27-2007, 10:39 AM

Yes, i believed theres' a "E" pump fro the 335i since its twin turbo, 325, 328 7 330i do not have a electric one like that.

Enkur · 04-27-2007, 10:44 AM

what about cars with comfort access?

stressdoc · 04-27-2007, 10:45 AM

If you are more concerned with getting every last drop of old oil out you can drain most of the oil, and then stick the key in, and even turn the engine over. The problem with this is when you start the engine with the new oil, it will take a little while for the oil pump to fill. It's usually OK if you do all this fairly quickly and there is still some residual oil lubricating during the first few revolutions.

bmw0perat0r · 04-27-2007, 10:52 AM

Quote:

Originally Posted by Enkur

what about cars with comfort access?

You only have to touch the car. You don't need to insert the key to get sprayed with oil.

Sparky66 · 04-27-2007, 11:03 AM

Quote:

Originally Posted by stressdoc

If you are more concerned with getting every last drop of old oil out you can drain most of the oil, and then stick the key in, and even turn the engine over. The problem with this is when you start the engine with the new oil, it will take a little while for the oil pump to fill. It's usually OK if you do all this fairly quickly and there is still some residual oil lubricating during the first few revolutions.

If I had a death wish yeah!!. I think you're playing with Fire

Mr.F1 Fan · 04-27-2007, 11:11 AM

Quote:

Originally Posted by Sparky66

If I had a death wish yeah!!. I think you're playing with Fire

+1 for sure!

Brunotheboxer · 04-27-2007, 12:24 PM

THIS THREAD IS WORTHLESS WITHOUT VIDEO.

sorry.

and that is a great tip.

ward · 04-27-2007, 12:31 PM

maybe that's what the weird noise we all hear when we unlock our cars is.... oil pump pressurizing

SROC3 · 04-27-2007, 01:14 PM

Quote:

Originally Posted by ward

maybe that's what the weird noise we all hear when we unlock our cars is.... oil pump pressurizing

nope. small gremlin taking a piddle.

noro · 04-27-2007, 01:35 PM

Also an addition to my lesson - No dipstick sucks a$$ big time. Having to start the engine each time to check the level is retardecious!

leftcoastman · 04-27-2007, 02:00 PM

Quote:

Originally Posted by stressdoc

If you are more concerned with getting every last drop of old oil out you can drain most of the oil, and then stick the key in, and even turn the engine over. The problem with this is when you start the engine with the new oil, it will take a little while for the oil pump to fill. It's usually OK if you do all this fairly quickly and there is still some residual oil lubricating during the first few revolutions.

I'd imagine that having a little old oil in the engine is far less damaging than what could happen from starting an engine without ANY oil.

Gives me shivers thinking about turbos spinning without oil..

FrankoQ · 04-27-2007, 02:26 PM

good tip.
I usually have the key in to listen to some music while working on the car.

noro · 04-27-2007, 02:31 PM

Quote:

Originally Posted by stressdoc

If you are more concerned with getting every last drop of old oil out you can drain most of the oil, and then stick the key in, and even turn the engine over. The problem with this is when you start the engine with the new oil, it will take a little while for the oil pump to fill. It's usually OK if you do all this fairly quickly and there is still some residual oil lubricating during the first few revolutions.

Never ever do this. Oil is no longer just a lubricating agent to the engine, it's part of the engine. there are a lot of hydralic components that rely on the oil being present to function properly.

E90Fleet · 04-27-2007, 03:25 PM

Quote:

Originally Posted by e30klassic

Yes, i believed theres' a "E" pump fro the 335i since its twin turbo, 325, 328 7 330i do not have a electric one like that.

The oil pump is mechanical not electric, only the water pump is electric

E90Fleet · 04-27-2007, 03:26 PM

Quote:

Originally Posted by ward

maybe that's what the weird noise we all hear when we unlock our cars is.... oil pump pressurizing

Fuel lines being pressurized

E90Fleet · 04-27-2007, 03:28 PM

Only thing I can think of is the crankcase ventalation

The 335i uses a special 2 stage crank case ventalation because of the turbo's.

All I can think is becuase you ran it, but didnt remove the key, some of the valves were still closed and a positive pressure was present in the system, pushing out the oil.

Removing the key probably makes the system open all the valves, releaving any pressure

John 070 · 04-27-2007, 03:45 PM

This was an interesting thread, never would have thought of it. Maybe with CA keep the key out of range? Also, I wondered how the oil in the cooler would come out, it doesn't seem like it would go out the drain plug as the hoses go up to the filter...

DanMardik · 04-27-2007, 03:49 PM

I can just imagine the oil spraying all over your face as you lay there stumped.

haha

04-27-2007, 09:48 AM	#1
noro Colonel 90 Rep 2,707 Posts Drives: '91 M3, '04 E46 ZHP, '72 2002 Join Date: Aug 2006 Location: Boston iTrader: (0)	Lesson #124 - Remove key before oil changes Hi all, wanted to share a little trick. at 1800 miles I decided to change the oil used to break-in the car. I went with the Mobil 1 - 0w40. Lifted the car, unscrewed the oil plug, and the oil SPRAYED out of the car like it was an aerosol can. Thankfully my brain cells gathered up quickly and I realized that the key was inserted. Now this car is not advertised as a dry sump vehicle but there must be a some kind of a pump (oil pump) that attempts to lubricate the motor as soon as you insert the key. As soon as I removed the key the oil flow turned into a normal stream just as expected to come out of an oil pan.
	Appreciate 0 Tweet Quote

04-27-2007, 09:55 AM	#2
LEDZEP Lieutenant General 417 Rep 12,276 Posts Drives: 2009 E70 & 2011 F25 Join Date: Jun 2005 Location: Area 51 iTrader: (0) Garage List 2011 X3 35i M Sport [7.62] 2009 X5 M Sport [0.00] 2007 328xi E90 [0.00] 2006 325xiT E91 [0.00]	That's a great tip! Hope the mess wasn't too bad. __________________ I think it is bad luck to be superstitious
	Appreciate 0 Quote

04-27-2007, 10:18 AM	#3
Sea2Ski Lieutenant 31 Rep 574 Posts Drives: 335 i SG, 6MT, CWP, BT, NAVI Join Date: Jan 2007 Location: Downingtown, PA iTrader: (1)	Noted!!! Thanks for the great tip!!!! ..learning from the mistakes/experiences of others....
	Appreciate 0 Quote

04-27-2007, 10:34 AM	#4
Revlis Now With 33% MORE Sarcasm Free! 157 Rep 3,462 Posts Drives: M4 i3 X3 Join Date: Feb 2007 Location: Phoenix AZ iTrader: (0)	Actually that is a great tip, will help speed up my oil changes!!!! __________________ A BMW is Just a Car, it doesn't make you smart, handsome, clever, better, cool, or wealthy.
	Appreciate 0 Quote

04-27-2007, 10:39 AM	#5
e30klassic Banned 25 Rep 375 Posts Drives: Sport T-Silver E90 Join Date: Oct 2005 Location: SF, Ca. iTrader: (2) Garage List 2006 328i [0.00]	Yes, i believed theres' a "E" pump fro the 335i since its twin turbo, 325, 328 7 330i do not have a electric one like that.
	Appreciate 0 Quote

04-27-2007, 10:44 AM	#6
Enkur Lieutenant 285 Rep 538 Posts Drives: 2022 M3 Comp xDrive Join Date: Jan 2007 Location: Cedar Park, TX iTrader: (0) Garage List 2011 BMW 328i [0.00]	what about cars with comfort access? __________________ 2022 Tanzanite Blue ///M3Cx \|\|\| 2015 550i \|\|\| 2011 328i sedan \|\|\| 2009 Z4 \|\|\| 2007 328i Coupe
	Appreciate 0 Quote

04-27-2007, 10:45 AM	#7
stressdoc Moderator 618 Rep 10,855 Posts Drives: BMW i8; Toy 4runner TRD pro Join Date: Jun 2005 Location: Waco TX iTrader: (0)	If you are more concerned with getting every last drop of old oil out you can drain most of the oil, and then stick the key in, and even turn the engine over. The problem with this is when you start the engine with the new oil, it will take a little while for the oil pump to fill. It's usually OK if you do all this fairly quickly and there is still some residual oil lubricating during the first few revolutions. __________________ My recent ED photos: http://f80.bimmerpost.com/forums/sho....php?t=1026808 my not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829 Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
	Appreciate 0 Quote

04-27-2007, 12:24 PM	#11
Brunotheboxer Colonel 371 Rep 2,984 Posts Drives: 2014 Shelby GT500. Join Date: Jan 2006 Location: Boston/Cape Cod iTrader: (0)	THIS THREAD IS WORTHLESS WITHOUT VIDEO. sorry. and that is a great tip. __________________ "...I maybe drunk, but you're ugly, and I can sober up..."
	Appreciate 0 Quote

04-27-2007, 12:31 PM	#12
ward Major General 155 Rep 6,158 Posts Drives: F Join Date: May 2005 Location: T iTrader: (0)	maybe that's what the weird noise we all hear when we unlock our cars is.... oil pump pressurizing
	Appreciate 0 Quote

04-27-2007, 01:35 PM	#14
noro Colonel 90 Rep 2,707 Posts Drives: '91 M3, '04 E46 ZHP, '72 2002 Join Date: Aug 2006 Location: Boston iTrader: (0)	Also an addition to my lesson - No dipstick sucks a$$ big time. Having to start the engine each time to check the level is retardecious!
	Appreciate 0 Quote

04-27-2007, 02:26 PM	#16
FrankoQ Deny everything 217 Rep 11,378 Posts Drives: 2006 330i; 2015 X6, S1000RR Join Date: Apr 2006 Location: Beautiful MD iTrader: (5) Garage List 2015 BMW X6 [0.00] 2006 330i [0.00]	good tip. I usually have the key in to listen to some music while working on the car. __________________ I need a drink
	Appreciate 0 Quote

04-27-2007, 03:28 PM	#20
E90Fleet Lieutenant General 1312 Rep 10,185 Posts Drives: BMW Join Date: Apr 2005 Location: South Africa iTrader: (0)	Only thing I can think of is the crankcase ventalation The 335i uses a special 2 stage crank case ventalation because of the turbo's. All I can think is becuase you ran it, but didnt remove the key, some of the valves were still closed and a positive pressure was present in the system, pushing out the oil. Removing the key probably makes the system open all the valves, releaving any pressure __________________ BMW if you are reading, I need a job, Please.
	Appreciate 0 Quote

04-27-2007, 03:45 PM	#21
John 070 Lieutenant General 1705 Rep 14,829 Posts Drives: 335i cpe Join Date: Oct 2006 Location: ZSP/ZPP/ZCW iTrader: (0)	This was an interesting thread, never would have thought of it. Maybe with CA keep the key out of range? Also, I wondered how the oil in the cooler would come out, it doesn't seem like it would go out the drain plug as the hoses go up to the filter...
	Appreciate 0 Quote

04-27-2007, 03:49 PM	#22
DanMardik Captain 17 Rep 729 Posts Drives: 08 INFINITI G37S Join Date: Dec 2006 Location: Irvine, CA iTrader: (0)	I can just imagine the oil spraying all over your face as you lay there stumped. haha __________________ *RIP 2007 335i Sedan*
	Appreciate 0 Quote