BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW M5 F90 (2018+) General Forums Mechanical Maintenance: Break-in | Oil & Fluids | Servicing | TSB | Recalls    Coolant Message

Post Reply
 
Thread Tools Search this Thread
      10-14-2018, 10:46 PM   #1
kdeleon
Second Lieutenant
94
Rep
249
Posts

Drives: M5
Join Date: Jun 2018
Location: Chicagoland

iTrader: (0)

Coolant Message

I got a low coolant warning this morning. My car is about 5 months old. Just want to ask around here if this is common for this car as my previous car never needed coolant outside of service. Otherwise, I will take it into service to check if there are any leaks.

I had to fill about 25 oz to get it back up to spec.
Appreciate 0
      10-15-2018, 02:05 AM   #2
dk79
First Lieutenant
United_States
84
Rep
346
Posts

Drives: 2018 F90 M5 Marina bay blue
Join Date: Feb 2013
Location: Gilbert, AZ

iTrader: (0)

Mine did that too, I had bmw coolant bottle in garage, needed to dilute it with water 50%. Added coolant good for now. Did not find any leak on my inspection.
Appreciate 0
      10-15-2018, 02:41 AM   #3
visualguy
Captain
183
Rep
795
Posts

Drives: M5
Join Date: Jun 2012
Location: CA

iTrader: (0)

Are there multiple coolant reservoirs in this car? Do you need to fill it in more than one location?
Appreciate 0
      10-15-2018, 03:41 AM   #4
AGS
Major
AGS's Avatar
496
Rep
1,397
Posts

Drives: 2022 M5 Competition
Join Date: May 2012
Location: NJ

iTrader: (0)

Quote:
Originally Posted by kdeleon View Post
I got a low coolant warning this morning. My car is about 5 months old. Just want to ask around here if this is common for this car as my previous car never needed coolant outside of service. Otherwise, I will take it into service to check if there are any leaks.

I had to fill about 25 oz to get it back up to spec.
One of my F10 M5s had the same issue. Turned out there was a cracked coolant line that needed to be replaced.
__________________
Current: 2022 Donnington Grey M5 Competition, 2014 Anvil WW Jeep Wrangler
Previous: 2019 Donnington Grey M5 Competition, 2016 Silverstone M5 CP, 2013 Monte Carlo Blue M5 CP (ED on 9/1/12), 2009 Carbon Black M5, 2006 Silverstone M5, 2003 Sterling Grey M5, 2000 Anthracite 540i6, 1998 Jeep Grand Cherokee 5.9Ltd, 1990 Eagle Talon TSi AWD, 1978 Mazda RX-7
Appreciate 0
      10-15-2018, 03:42 AM   #5
AGS
Major
AGS's Avatar
496
Rep
1,397
Posts

Drives: 2022 M5 Competition
Join Date: May 2012
Location: NJ

iTrader: (0)

Quote:
Originally Posted by visualguy View Post
Are there multiple coolant reservoirs in this car? Do you need to fill it in more than one location?
Yes, there are two separate cooling systems. One for the engine and one for the turbos.
__________________
Current: 2022 Donnington Grey M5 Competition, 2014 Anvil WW Jeep Wrangler
Previous: 2019 Donnington Grey M5 Competition, 2016 Silverstone M5 CP, 2013 Monte Carlo Blue M5 CP (ED on 9/1/12), 2009 Carbon Black M5, 2006 Silverstone M5, 2003 Sterling Grey M5, 2000 Anthracite 540i6, 1998 Jeep Grand Cherokee 5.9Ltd, 1990 Eagle Talon TSi AWD, 1978 Mazda RX-7
Appreciate 0
      10-15-2018, 04:18 AM   #6
dk79
First Lieutenant
United_States
84
Rep
346
Posts

Drives: 2018 F90 M5 Marina bay blue
Join Date: Feb 2013
Location: Gilbert, AZ

iTrader: (0)

I just filled out the main coolant reservoir as it was low.
Appreciate 0
      10-15-2018, 06:55 AM   #7
kdeleon
Second Lieutenant
94
Rep
249
Posts

Drives: M5
Join Date: Jun 2018
Location: Chicagoland

iTrader: (0)

Mine was also only the main. The other tank was fine.
Appreciate 1
      10-15-2018, 10:05 AM   #8
adeuel
Lieutenant
316
Rep
516
Posts

Drives: 2021 Oxford Green M5C
Join Date: Mar 2016
Location: Rochester NY

iTrader: (0)

Coolant expands and contracts just like your tire pressure. Cooler weather may cause a low coolant warning. Just topped mine off last week as well.
Appreciate 1
Bönz183.50
      10-15-2018, 10:35 AM   #9
GUNGASLOW
Banned
192
Rep
390
Posts

Drives: 2019 M5
Join Date: Jun 2018
Location: Salem MA

iTrader: (0)

What type of coolant can you use from the auto parts store?
Appreciate 0
      10-15-2018, 11:02 AM   #10
Bönz
Captain
Bönz's Avatar
United_States
184
Rep
764
Posts

Drives: 2018 M5
Join Date: Jan 2012
Location: Michigan

iTrader: (0)

Mine just did it this past weekend when it was cold. Adeuel is correct. The coolant contracts when cold. A little top off is all that's needed.
Appreciate 0
      10-15-2018, 02:57 PM   #11
dk79
First Lieutenant
United_States
84
Rep
346
Posts

Drives: 2018 F90 M5 Marina bay blue
Join Date: Feb 2013
Location: Gilbert, AZ

iTrader: (0)

Mine needed 750cc lol not just top off. Buy a bottle of bmw concentrated coolant bottle for 10 bucks from dealership. Dilute 50:50 with water. Had a bottle sitting in garage from previous f10 m5.
Appreciate 0
      10-15-2018, 03:43 PM   #12
kdeleon
Second Lieutenant
94
Rep
249
Posts

Drives: M5
Join Date: Jun 2018
Location: Chicagoland

iTrader: (0)

Quote:
Originally Posted by dk79 View Post
Mine needed 750cc lol not just top off. Buy a bottle of bmw concentrated coolant bottle for 10 bucks from dealership. Dilute 50:50 with water. Had a bottle sitting in garage from previous f10 m5.
Actually, when you convert to fl oz, that is just about the same amount that I needed. I assume because that is where the sensor kicks in.

And I agree, I had a bottle of BMW coolant that I used on my E46 M3. But I only needed it after it was over 10 years old, closer to 12.
Appreciate 0
      10-15-2018, 04:27 PM   #13
WasIgoingSideways?
New Member
11
Rep
24
Posts

Drives: 2018 M5
Join Date: Mar 2018
Location: Milwaukee, WI

iTrader: (0)

I had mine come on when cold at night after picking it up at the airport. Car is 6 mo's old. Drove home and parked in garage. Light did not come on the next morning. Had an oil change scheduled for the next day and they checked it out. Nothing out of the normal and it never came on again.
Appreciate 0
      11-12-2018, 08:25 PM   #14
ACF90M5
Private
ACF90M5's Avatar
21
Rep
53
Posts

Drives: 2018 F90 M5
Join Date: Aug 2018
Location: CT

iTrader: (0)

Just had mine do the same thing today. It got below freezing this weekend and I haven't driven her since Friday afternoon. Hopefully this trend doesn't continue in in the winter. I am due for service in 2300 miles. The service advisor said this is common in newer BMWs.

It is a little odd though because the rest of the day I had some weird startup errors with the driver assist systems showing "permanently off" for about 10 seconds and the digital dash not displaying for the same amount of time. Also my bluetooth would restart my music selection regardless of what the last song was.
__________________
2018 BMW M5 Black Sapphire Metallic
GONE - 2013 Audi S6 Phantom Black Pearl
Appreciate 0
      07-15-2019, 06:54 PM   #15
seamasters
seamasters
Australia
29
Rep
401
Posts

Drives: M5 F90 COMP , M4 Mineral White
Join Date: May 2011
Location: Australia

iTrader: (0)

Quote:
Originally Posted by dk79 View Post
I just filled out the main coolant reservoir as it was low.
What coolant did you use? And can I use same coolant for both? Or do they have different ones. Like blue and red. I have some genuine bmw blue coolant not sure if i can use it? Both my coolants are less than minimum. 2019 F90 M5 competition.
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 02:32 PM.




m5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST