06-21-2018, 05:23 AM | #1 |
Lieutenant Colonel
1975
Rep 1,826
Posts |
Wait before shutting off the engine
Do you guys wait a little bit before shutting off the engine after a ride ?
I heard people saying that for the turbos , it was better to wait 30 secondes , other says 2 minutes , and also some say that you don't need to wait at all. Curious to know how you guys a treating your engines I personally wait close to 2 minutes. |
06-21-2018, 12:14 PM | #8 |
Major
1416
Rep 1,356
Posts |
I saw a YouTube video where the fans were running long after the engine was shut off. Would that suffice? Why is it necessary to wait? This may not always be practical IRL.
|
Appreciate
0
|
06-21-2018, 12:21 PM | #9 |
BMW Client Advisor
3449
Rep 2,504
Posts
Drives: 2020 M340i
Join Date: May 2017
Location: Tulley BMW Nashua, NH
|
In my F80 the car will cool itself down, I always heard the fans running after a spirited drive.
__________________
Contact me for all your BMW needs in the New England area.
jpichardo@tulley.com Top M Client Advisor in New England. |
Appreciate
0
|
06-21-2018, 12:47 PM | #11 |
BMW Client Advisor
3449
Rep 2,504
Posts
Drives: 2020 M340i
Join Date: May 2017
Location: Tulley BMW Nashua, NH
|
Now you have an old Eclipse GSX then sure LOL
__________________
Contact me for all your BMW needs in the New England area.
jpichardo@tulley.com Top M Client Advisor in New England. |
Appreciate
0
|
06-21-2018, 01:31 PM | #13 | |
BMW Fan Boy
446
Rep 1,385
Posts |
Quote:
The days of having to run your turbocharged car at idle before shutdown after spirited driving are over. Those fans and pumps you hear after turning the engine off prevent oil from coking in the turbos. |
|
Appreciate
0
|
06-21-2018, 01:37 PM | #14 |
Rocky
411
Rep 3,085
Posts |
I’m still running all of my cars for a few minutes after WOT runs. I try to go easy a few miles away from home but sometimes demo runs are necesssry.
|
Appreciate
0
|
06-21-2018, 04:48 PM | #16 |
Brigadier General
2267
Rep 3,281
Posts |
The fans stay on for quite a while after shutting the car off and and I am sure it also has an electric pump that keeps the coolant circulating after you shut the car off.
Modern turbo's are cooled by water and oil circulation through them and last a long time. I replaced the turbos on my 2003 RS6 at 140,000 miles only because the engine was out and a few of the blades showed wear on the exhaust side of the turbine. I don't think it is necessary to sit in the car idling the engine to cool down every time you stop. Perhaps after a spirited drive you could do a cool down lap before parking the car? I did not see anything in the manual about cooling the car down. Mike
__________________
2018 M5 and 2019 Porsche Boxster GTS Prior. '94 325is, '97 M3 Lux, '16 M2 |
Appreciate
0
|
06-21-2018, 05:49 PM | #17 |
Colonel
1861
Rep 2,536
Posts |
I remember in high school auto shop installing turbo timers in a couple of modded imports we used to wrench on... things have (thankfully) changed and you actually don't need to worry about this anymore. So if you like doing it by all means go for it but its really not going to have any effect on your motor.
|
Appreciate
0
|
06-21-2018, 07:41 PM | #18 |
First Lieutenant
286
Rep 369
Posts |
Probably would be helpful to do a cool down lap after a track session/very spirited drive mainly to give the brakes time to cool down so the rotors don't get warped. Not necessary for most street or even mountain driving though.
|
Appreciate
0
|
06-21-2018, 08:54 PM | #19 |
First Lieutenant
233
Rep 354
Posts
Drives: 335XI MPerformance edition
Join Date: Jun 2015
Location: Québec Province
|
for me, the fan can run from 30 sec and sometime as long as 5 / 8 minutes after ride. depend on the driving condition
|
Appreciate
0
|
06-22-2018, 09:17 AM | #20 | |
Plenipotentiary
2614
Rep 3,046
Posts |
Quote:
|
|
Appreciate
4
|
06-22-2018, 11:55 AM | #22 |
Soporificist
160
Rep 327
Posts |
I've always heard- but never verified with an authoritative source- that idling for a minute or two before shutting off allows circulating oil to return to the pan and prevent gumming up the valves and other oil lubricated parts.
__________________
2019 M5 Rhodonite Silver// 2016 M4- retired// 2011 750i- retired// 2004 740i- retired//
2001 740i- retired// 1998 M3- retired |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|