Where is my coolant going??

INFY · 08-27-2018, 03:45 PM

I keep losing coolant. I filled it up about 3 weeks ago and I just got another warning for low engine coolant.

No puddles under the car. Anywhere. I always park in the same spaces.

No smoke out the back.

Nothing on the oil cap and oil looks clean.

Really confusing. Anyone have any thoughts?

Craze · 08-28-2018, 04:54 AM

There is 2 coolant reservoirs check the other one

DL7 · 08-28-2018, 05:48 AM

I had the same thing happen-had a leak in the turbo coolant line fittings. Coolant was slowly leaking onto engine and burning up so no drips or leaks onto floor. Only symptom was an intermittent slight smell of burning coolant. I believe it is a common problem.

Spinny02 · 08-28-2018, 06:49 AM

Get your oil tested by blackstone.

AWF10M5 · 08-28-2018, 09:43 AM

mine was doing the same thing no leaks on floor and the other tank looked full

but it was leaking from the lines this is a common issue and i believe even the fix is not proper because it will happen again

Sabs1815 · 08-30-2018, 10:47 AM

What year is your car?

I had the same exact issue when I had my 2013, I took it in for service and the SA notified me that there was a known problem with the turbo coolant lines as others said above. The fix does look like BS but after I had it done I never got the light again.

AWF10M5 Did the coolant light come on again when the car was in your ownership?

08-27-2018, 03:45 PM	#1
INFY Registered 2 Rep 3 Posts Drives: F10 M5 Join Date: Jun 2017 Location: WA iTrader: (0)	Where is my coolant going?? I keep losing coolant. I filled it up about 3 weeks ago and I just got another warning for low engine coolant. No puddles under the car. Anywhere. I always park in the same spaces. No smoke out the back. Nothing on the oil cap and oil looks clean. Really confusing. Anyone have any thoughts? Attached Images
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08-28-2018, 04:54 AM	#2
Craze Captain 161 Rep 687 Posts Drives: M5 E60, M5 F10, X5 50i Join Date: Oct 2017 Location: Australia iTrader: (0)	There is 2 coolant reservoirs check the other one
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08-28-2018, 05:48 AM	#3
DL7 Private 12 Rep 57 Posts Drives: F10 M5 Join Date: Sep 2017 Location: SE iTrader: (0)	I had the same thing happen-had a leak in the turbo coolant line fittings. Coolant was slowly leaking onto engine and burning up so no drips or leaks onto floor. Only symptom was an intermittent slight smell of burning coolant. I believe it is a common problem.
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08-28-2018, 06:49 AM	#4
Spinny02 Lieutenant Colonel 124 Rep 1,840 Posts Drives: '14 M5 CP Dinan Stage 2 Join Date: Jun 2013 Location: Houston, Tx iTrader: (2) Garage List 2018 Escalade ESV P ... [0.00] 2014 M5 Dinan S1 [0.00]	Get your oil tested by blackstone. __________________
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08-28-2018, 09:43 AM	#5
AWF10M5 Banned 223 Rep 553 Posts Drives: f10 m5 Join Date: Dec 2016 Location: Bikini bottom iTrader: (7)	mine was doing the same thing no leaks on floor and the other tank looked full but it was leaking from the lines this is a common issue and i believe even the fix is not proper because it will happen again
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08-30-2018, 10:47 AM	#6
Sabs1815 First Lieutenant 121 Rep 324 Posts Drives: 2013 F10 M5 Join Date: Mar 2016 Location: Brooklyn, NY iTrader: (0)	What year is your car? I had the same exact issue when I had my 2013, I took it in for service and the SA notified me that there was a known problem with the turbo coolant lines as others said above. The fix does look like BS but after I had it done I never got the light again. AWF10M5 Did the coolant light come on again when the car was in your ownership? __________________ 2006 E46 M3 Vert-Sold 2013 F10 M5- Sold 2013 E70 X5M-Sold 2013 F10 M5- Rest in peace 2015 F15 X5 50I
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