MBWorld.org Forums

M-Class (W166) Produced 2012-2015

Low coolant light 2.1 Bluetec

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 04-13-2018, 02:38 PM
  #1  
Senior Member
Thread Starter
 
gkgeiger's Avatar
 
Join Date: Mar 2015
Location: Ohio/Florida
Posts: 442
Received 29 Likes on 27 Posts
'10 C300, '15 ML250BT, '22 M850i Vert
Low coolant light 2.1 Bluetec
This is the second time I've got this warning. No leaks on the garage floor. Anyone else have this problem?
gkgeiger is offline  
Reply Like
Old 04-13-2018, 09:52 PM
  #2  
MBWorld Fanatic!
 
DanD.'s Avatar
 
Join Date: Apr 2016
Location: NW
Posts: 1,011
Received 170 Likes on 139 Posts
2018 GLC 4MATIC
Originally Posted by gkgeiger
This is the second time I've got this warning. No leaks on the garage floor. Anyone else have this problem?
Had this once. During winter. Went to a dealer bought a coolant. Added it to cover the plastic level and newer had this message again.
DanD. is offline  
Reply Like
Old 04-14-2018, 07:22 AM
  #3  
Senior Member
Thread Starter
 
gkgeiger's Avatar
 
Join Date: Mar 2015
Location: Ohio/Florida
Posts: 442
Received 29 Likes on 27 Posts
'10 C300, '15 ML250BT, '22 M850i Vert
I didn't say it but obviously I added coolant the first time and again now.
gkgeiger is offline  
Reply Like
Old 04-14-2018, 08:18 AM
  #4  
MBWorld Fanatic!
 
peter2772000's Avatar
 
Join Date: May 2017
Location: Montreal/Cape Coral FL
Posts: 1,233
Received 142 Likes on 128 Posts
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
Does your engine seem to run any hotter than usual? Or worse, do you seem to have more white smoke out the tailpipe than usual?
peter2772000 is offline  
Reply Like
Old 04-14-2018, 08:32 AM
  #5  
Senior Member
Thread Starter
 
gkgeiger's Avatar
 
Join Date: Mar 2015
Location: Ohio/Florida
Posts: 442
Received 29 Likes on 27 Posts
'10 C300, '15 ML250BT, '22 M850i Vert
Runs perfect, never any smoke from tailpipe.
gkgeiger is offline  
Reply Like
Old 04-14-2018, 10:21 AM
  #6  
MBWorld Fanatic!
 
DanD.'s Avatar
 
Join Date: Apr 2016
Location: NW
Posts: 1,011
Received 170 Likes on 139 Posts
2018 GLC 4MATIC
Originally Posted by gkgeiger
I didn't say it but obviously I added coolant the first time and again now.
Is it really low or just a sensor error? If its really low check the oil level. It should be somewhere.
How log ago did you add it and how much gone?
DanD. is offline  
Reply Like
Old 04-14-2018, 11:34 AM
  #7  
Senior Member
Thread Starter
 
gkgeiger's Avatar
 
Join Date: Mar 2015
Location: Ohio/Florida
Posts: 442
Received 29 Likes on 27 Posts
'10 C300, '15 ML250BT, '22 M850i Vert
Originally Posted by DanD.
Is it really low or just a sensor error? If its really low check the oil level. It should be somewhere.
How log ago did you add it and how much gone?
I added about a pint each time. I've never had to add coolant to any of my many new cars.
gkgeiger is offline  
Reply Like

Trending Topics

Old 04-14-2018, 12:37 PM
  #8  
MBWorld Fanatic!
 
DanD.'s Avatar
 
Join Date: Apr 2016
Location: NW
Posts: 1,011
Received 170 Likes on 139 Posts
2018 GLC 4MATIC
Originally Posted by gkgeiger
I added about a pint each time. I've never had to add coolant to any of my many new cars.
Did you check oil level?
DanD. is offline  
Reply Like
Old 04-14-2018, 01:55 PM
  #9  
Senior Member
Thread Starter
 
gkgeiger's Avatar
 
Join Date: Mar 2015
Location: Ohio/Florida
Posts: 442
Received 29 Likes on 27 Posts
'10 C300, '15 ML250BT, '22 M850i Vert
Originally Posted by DanD.
Did you check oil level?
Oil is fine, no sign of water.
gkgeiger is offline  
Reply Like
Old 04-14-2018, 06:14 PM
  #10  
MBWorld Fanatic!
 
DanD.'s Avatar
 
Join Date: Apr 2016
Location: NW
Posts: 1,011
Received 170 Likes on 139 Posts
2018 GLC 4MATIC
Originally Posted by gkgeiger
Oil is fine, no sign of water.
As far as I know coolant can go in or out. If no leaks outside I would send oil for a test. Very strange.
DanD. is offline  
Reply Like
Back to Subforum
M-Class (W166)
View Next Unread
Mystery check eng light - 32 days in shop

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search
Quick Reply: Low coolant light 2.1 Bluetec


Reply Closed Thread Share

All times are GMT -4. The time now is 08:39 AM.