[Namelss]

Originally Posted by HeWhoWalksBehind

I've been wondering about that behavior as well. Glad I'm not the only one!

I've had mine almost 3 months now. My wife got home right after me one night and was like "is your car still running?" lol

[Maxlude]

Originally Posted by CFoote

The engine runs hot. It's just cooling down...Hence why we have multiple batteries in the car.

Chris

Where are these other batteries?
I'm only aware of the main li-ion one in-between the rear axel???

[Maxlude]

Originally Posted by dawidk1978

10 m idle running = shortage of life v8 engine. V8 engines doesn't like idle running

Why does a V8 engine not like idling different to any other config of ICE???

[Maxlude]

Originally Posted by Resjudicata

Definitely. Comfort or eco will be cooler than sport or sport plus. But it's built in. Also the grille active open and close.
I wish I had a video after my track day showing how it opened, cooled and then closed, while I was out of the car.

Are you saying that the F90 has active front grilles???
I've never seen them on an F90 M5

[bimmerbeast9]

Originally Posted by Maxlude

Are you saying that the F90 has active front grilles???
I've never seen them on an F90 M5

Lol.. dude aint got an f90

[Drciop]

Originally Posted by dappercivility

It is normal. Mine does the same. Even short drives with the engine not fully warmed up yet, after stopping, the fans run for abit before shutting down totally.

The same for me

[Drciop]

So I don't have to worryfor the turbos cooling down?
Sure?

[boost3dx]

Originally Posted by Drciop

So I don't have to worryfor the turbos cooling down?
Sure?

No, that's why the fans run.

[smbsocal]

Normal and you will probably run into people who remind you to turn off the car, even though it is off, when you are at a gas station pumping gas.

[Danny D]

Originally Posted by bimmerbeast9

A short drive will have it hotter than driving on the highway

also those turbos get extremely hot in 10 seconds

The goal however is to come home let it idle outside the garage for two minutes cut it off and if the fans dont turn on that means you have adequately cooled down your car

And you're supposed to let a motor idle before you turn it off ..the worst thing you can do is turn a motor off when its hot.. if your oil is at 210°when you cut it off, it will be at 230° in five minutes

Ummm, no to all the above-
A short drive vs highway drive drive - ok I went 3 blocks to the store my oil did not even warm up came home - no fan

Turbos get hot in 10 secs - I won't even go here - if you start the car there is no boost in them.

The last two are even better - wait in your car. LOL. This car has pumps and fans specifically designed so you do not need to do this - it is not 1995 when you needed to purchase a turbo timer from greddy, AEM whatever to keep you car idling.

Finally I drove a 335 fully tuned to approx 450hp/450torque(have dyno sheets), 12 years I drove that car and I shut it off as soon as I got home after betting the crap out of it. PS - that has only a small pump to cool the turbos when parked.

[zb2603]

Originally Posted by Drciop

So I don't have to worryfor the turbos cooling down?
Sure?

I took delivery of mine yesterday with 18 miles, drove it up a canyon in comfort for 10 minutes, 3 miles. Parked and got out of the car, thought I already broke the car from the amount of noise it was making. And had driven it in a really civil manner given that I just got it.. Glad to see this thread to say the least

[ResIpsaLoquitur]

Originally Posted by zb2603

I took delivery of mine yesterday with 18 miles, drove it up a canyon in comfort for 10 minutes, 3 miles. Parked and got out of the car, thought I already broke the car from the amount of noise it was making. And had driven it in a really civil manner given that I just got it.. Glad to see this thread to say the least

Sorry, OP, don't mean to thread jack…

BUT BRO, finally!!!! Congratulations! We were in the trenches together for a good bit. So happy you finally got it. Pictures please!

[JOHNBMWM5]

Originally Posted by Maxlude

Where are these other batteries?
I'm only aware of the main li-ion one in-between the rear axel???

There is ONLY one battery in the M5, the 5 series has an extra one under the bonnet !!!.

[zb2603]

Originally Posted by ResIpsaLoquitur

Sorry, OP, don't mean to thread jack…

BUT BRO, finally!!!! Congratulations! We were in the trenches together for a good bit. So happy you finally got it. Pictures please!

Dude I was meaning to PM you lol. Almost messaged you yesterday after it started making noises so I don't look like a dumbass lmao. Thank you! They brought it down yesterday. Will post proper pics when I take. Really helped me get through the process can't thank enough.🙌🏻

[ResIpsaLoquitur]

Originally Posted by zb2603

Dude I was meaning to PM you lol. Almost messaged you yesterday after it started making noises so I don't look like a dumbass lmao. Thank you! They brought it down yesterday. Will post proper pics when I take. Really helped me get through the process can't thank enough.🙌🏻

CONGRATULATIONS ! She's beautiful! You should start a new delivery thread! Cool down noises I'm assuming that your mentioning. All normal! Sounds like a jet engine powering down.

So glad you got enclosed transport to bring it to you nicely. The color is absolutely stunning! I know these photos don't even do it justice. Can't wait to see more. I couldn't be happier for you! You helped me get through my wait as well. Awesome to see everything come to fruition and to see the fruits of your labor and patience. I know it's been a long road!!!

[rkombalov]

I had my car in for service to replace the coolant overflow tank due to defective seal. Ever since the replacement, i have not observed the engine cool off fan to turn on even once. Prior to the replacement, the cool off fan would always run after turning car off for a few minutes (never had low coolant light on). Was a setting switched off by dealer or is this fan purely always automatic only? Want to ensure there isn't a setting they turned off by chance.

[micvite]

Originally Posted by rkombalov

I had my car in for service to replace the coolant overflow tank due to defective seal. Ever since the replacement, i have not observed the engine cool off fan to turn on even once. Prior to the replacement, the cool off fan would always run after turning car off for a few minutes (never had low coolant light on). Was a setting switched off by dealer or is this fan purely always automatic only? Want to ensure there isn't a setting they turned off by chance.

It's automatic, test by driving the car properly then see if fans turn on.

[fcordano]

I have owned many M products and they all seem to have some heat issues requiring lengthy cool downs but the M5 has been the worse and longest of them requiring a loooong cool down. Ive often wondered how long the battery would last. I do have to say however that mine is an 18 and has only required one recharge after a lengthy sleep with a ( apparently) defective trickle charger. I do not drive in the winters.

[Em5Comp]

Originally Posted by fcordano

I have owned many M products and they all seem to have some heat issues requiring lengthy cool downs but the M5 has been the worse and longest of them requiring a loooong cool down. Ive often wondered how long the battery would last.

Yeah this car cools down after shutting off the engine for a weirdly long time. My E63s never needed to cool down as long and loudly as the M5 does

[Holset]

Originally Posted by Em5Comp

Yeah this car cools down after shutting off the engine for a weirdly long time. My E63s never needed to cool down as long and loudly as the M5 does

Its a good thing the car does this helps save rhe engine/turbos and everything under the hood.

[pbonsalb]

Lots of heat retained with the manifolds, turbos and cats in the V of the V8.

[pmsteinm]

In theory the Li-ion battery supports more cycles than AGM so the extra use by the fans and pumps should not shorten battery life. FWIW the coolant pumps in my wife's E90 N54 ran for a while after. The B58 in the X5 does it too.