Low Coolant Light On?

BayMoWe335 · 01-02-2011, 02:59 PM

I have a 2010 335i with 7k miles and I fired it up after a cold night. Immediately, the low coolant light comes on.

I pull back in the garage and check the coolant level. I am not a rocket scientist, but the little bobber seemed to be all the way up in the "full" position. I could push it down and it just bounced right back up.

Could this be a false alarm I should just monitor? I notice 0 coolant leaking on the garage floor.

Seems the BMW lights are a bit fussy. I had my windshield washer fluid and a light telling me a builb was out come on and they just went away on their own.

Any input? Should I get it checked immediately? Car never runs hotter than 235 degrees F.

2kaccordocoupe · 01-02-2011, 03:27 PM

I'm sure you are fine, keep an eye on it. If it does it again, take it in.

BayMoWe335 · 01-02-2011, 04:05 PM

Why do we always get false warning lights on these cars? This is my third one...haha.

scottp999 · 01-02-2011, 04:25 PM

Normal.When the car is cold, check the coolant level. If it's low, order the bmw coolant from Tischer BMW (getbmwparts.com) and top it off.

BayMoWe335 · 01-02-2011, 04:28 PM

Did I check the coolant level properly by looking at that "bobber" thing? lol...

It was fully in the "up" position and came right back up when I pressed it down.

bsamoul · 01-02-2011, 04:33 PM

Quote:

Originally Posted by BayMoWe335

Did I check the coolant level properly by looking at that "bobber" thing? lol...

It was fully in the "up" position and came right back up when I pressed it down.

Unless you checked the wiper fluid, yes. haha

BayMoWe335 · 01-17-2011, 07:26 PM

Looks like I'll have to go to the dealer. It was off for a few days and now came back on. I don't understand why it has to go on and off...

If it's low, why doesn't it just stay on all the time?

scottp999 · 01-17-2011, 07:42 PM

Quote:

Originally Posted by BayMoWe335

Looks like I'll have to go to the dealer. It was off for a few days and now came back on. I don't understand why it has to go on and off...

If it's low, why doesn't it just stay on all the time?

Mine was right near the sensor line. The light would only come on when I was not on a level parking area.

IFX · 01-17-2011, 07:58 PM

Could just be a bad sensor.

Did you check the fluid level correctly?

I got a coolant light once on my M3, topped it off.. Couple months later same thing again.
Got suspicious, so got the car up, took front plastic pan off, and my lower radiator hose was leaking slowly.. (Worst case scenario of course)

Bottom line, car shouldn't need to be topped off with coolant. If so, there is a problem. Or so i hear.

Ricer X · 01-17-2011, 09:48 PM

I had the same thing....just brought it in to the dealer and they topped it off for me for nothing....no issues since.

My SA said it was a normal occurrance in the colder months but if after topping off, it happened again to bring it in.

bmertek · 01-18-2011, 06:08 AM

See that all the time at dealer when temps drop. Coolant lights and tpm lights all day

BayMoWe335 · 01-19-2011, 06:03 PM

Took my car in today.

Everyone there said perfectly normal and it was only a bit low, but low. They topped it off along with wiper and I was gone in 10 minutes.

They said if I notice it again, come back and they'll run a full test to see if there is a leak.

01-02-2011, 02:59 PM	#1
BayMoWe335 Colonel 1176 Rep 2,132 Posts Drives: 2010 E92 335i 6MT Join Date: Aug 2009 Location: US iTrader: (0)	Low Coolant Light On? I have a 2010 335i with 7k miles and I fired it up after a cold night. Immediately, the low coolant light comes on. I pull back in the garage and check the coolant level. I am not a rocket scientist, but the little bobber seemed to be all the way up in the "full" position. I could push it down and it just bounced right back up. Could this be a false alarm I should just monitor? I notice 0 coolant leaking on the garage floor. Seems the BMW lights are a bit fussy. I had my windshield washer fluid and a light telling me a builb was out come on and they just went away on their own. Any input? Should I get it checked immediately? Car never runs hotter than 235 degrees F.
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01-02-2011, 03:27 PM	#2
2kaccordocoupe Brigadier General 1274 Rep 4,703 Posts Drives: Former ///M Driver Join Date: Nov 2008 Location: The 6ix iTrader: (2)	I'm sure you are fine, keep an eye on it. If it does it again, take it in.
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01-02-2011, 04:05 PM	#3
BayMoWe335 Colonel 1176 Rep 2,132 Posts Drives: 2010 E92 335i 6MT Join Date: Aug 2009 Location: US iTrader: (0)	Why do we always get false warning lights on these cars? This is my third one...haha.
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01-02-2011, 04:25 PM	#4
scottp999 Brigadier General 133 Rep 4,764 Posts Drives: 4runner SR5 Join Date: Mar 2007 Location: MD iTrader: (2) Garage List 2007 BMW 335 [9.00]	Normal.When the car is cold, check the coolant level. If it's low, order the bmw coolant from Tischer BMW (getbmwparts.com) and top it off.
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01-02-2011, 04:28 PM	#5
BayMoWe335 Colonel 1176 Rep 2,132 Posts Drives: 2010 E92 335i 6MT Join Date: Aug 2009 Location: US iTrader: (0)	Did I check the coolant level properly by looking at that "bobber" thing? lol... It was fully in the "up" position and came right back up when I pressed it down.
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01-17-2011, 07:26 PM	#7
BayMoWe335 Colonel 1176 Rep 2,132 Posts Drives: 2010 E92 335i 6MT Join Date: Aug 2009 Location: US iTrader: (0)	Looks like I'll have to go to the dealer. It was off for a few days and now came back on. I don't understand why it has to go on and off... If it's low, why doesn't it just stay on all the time?
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01-17-2011, 07:58 PM	#9
IFX Banned 67 Rep 2,536 Posts Drives: AW e46M/N54 Join Date: Jan 2009 Location: South Fla. iTrader: (1)	Could just be a bad sensor. Did you check the fluid level correctly? I got a coolant light once on my M3, topped it off.. Couple months later same thing again. Got suspicious, so got the car up, took front plastic pan off, and my lower radiator hose was leaking slowly.. (Worst case scenario of course) Bottom line, car shouldn't need to be topped off with coolant. If so, there is a problem. Or so i hear.
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01-17-2011, 09:48 PM	#10
Ricer X noted crusty old man 99 Rep 7,859 Posts Drives: like a man late for work Join Date: Aug 2009 Location: of what? iTrader: (1) Garage List 2007 335i [6.76]	I had the same thing....just brought it in to the dealer and they topped it off for me for nothing....no issues since. My SA said it was a normal occurrance in the colder months but if after topping off, it happened again to bring it in. __________________ Photoshoot: http://www.e90post.com/forums/showthread.php?t=448667 Ihsanshaik - X/Vasillalov - X/Nood1es - X/Countless more I can't recall - X Nobama 2012
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01-18-2011, 06:08 AM	#11
bmertek Enlisted Member 8 Rep 48 Posts Drives: 2011 328 Join Date: Jan 2011 Location: Houston, TX iTrader: (0) Garage List 2011 E90 328i [0.00]	See that all the time at dealer when temps drop. Coolant lights and tpm lights all day
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01-19-2011, 06:03 PM	#12
BayMoWe335 Colonel 1176 Rep 2,132 Posts Drives: 2010 E92 335i 6MT Join Date: Aug 2009 Location: US iTrader: (0)	Took my car in today. Everyone there said perfectly normal and it was only a bit low, but low. They topped it off along with wiper and I was gone in 10 minutes. They said if I notice it again, come back and they'll run a full test to see if there is a leak.
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