2011 X5 35i Leak under driver side

sleepyal · 12-02-2016, 08:22 AM

Hi Everyone,
This morning I noticed a trail of fluid coming from my X5 underneath the driver's side. Looks like it's a clear fluid, most likely water. I didn't try to start the car yet so not sure if it will throw any messages but does anyone know what this could be? The car has 52000 miles on it.

-c- · 12-02-2016, 11:11 AM

Quote:

Originally Posted by sleepyal

Hi Everyone,
This morning I noticed a trail of fluid coming from my X5 underneath the driver's side. Looks like it's a clear fluid, most likely water. I didn't try to start the car yet so not sure if it will throw any messages but does anyone know what this could be? The car has 52000 miles on it.

Possable AC runoff

mirob · 12-02-2016, 11:37 AM

AC runoff as stated above or...

Is it wet outside (i.e., rain, sprinklers, etc.)? This has caught me off guard once or twice. Driving through even a pothole a few hundred feet away and then parking in the garage...then having a puddle of water underneath vehicle when I come out again.

LeoBurr · 12-18-2016, 09:59 AM

Possible coolant expansion tank crack. Make sure it's not colored/sweet-smelling fluid. My expansion tank leaked at one of the plastic seams before finally letting go completely at the shop. It wasn't easy to see from the top of the tank, since it was a horizontal seam.

If it's front driver's side, that's a likely culprit.

mitch808 · 12-18-2016, 04:14 PM

Quote:

Originally Posted by GeoffS

Possible coolant expansion tank crack. Make sure it's not colored/sweet-smelling fluid. My expansion tank leaked at one of the plastic seams before finally letting go completely at the shop. It wasn't easy to see from the top of the tank, since it was a horizontal seam.

If it's front driver's side, that's a likely culprit.

This happened to mine, replaced under warranty.

12-02-2016, 08:22 AM	#1
sleepyal New Member 6 Rep 17 Posts Drives: 2011 BMW X5 35i sport Join Date: Jan 2011 Location: Manalapan, NJ iTrader: (0)	2011 X5 35i Leak under driver side Hi Everyone, This morning I noticed a trail of fluid coming from my X5 underneath the driver's side. Looks like it's a clear fluid, most likely water. I didn't try to start the car yet so not sure if it will throw any messages but does anyone know what this could be? The car has 52000 miles on it. Last edited by sleepyal; 12-02-2016 at 08:22 AM.. Reason: updated with more information
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12-02-2016, 11:37 AM	#3
mirob Lieutenant Colonel 3010 Rep 1,686 Posts Drives: M3CX Join Date: Feb 2016 Location: Bomb City, TX iTrader: (0)	AC runoff as stated above or... Is it wet outside (i.e., rain, sprinklers, etc.)? This has caught me off guard once or twice. Driving through even a pothole a few hundred feet away and then parking in the garage...then having a puddle of water underneath vehicle when I come out again.
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12-18-2016, 09:59 AM	#4
LeoBurr 6MT Fanatic 65 Rep 173 Posts Drives: 20 M2C Join Date: Dec 2011 Location: Austin, TX iTrader: (4)	Possible coolant expansion tank crack. Make sure it's not colored/sweet-smelling fluid. My expansion tank leaked at one of the plastic seams before finally letting go completely at the shop. It wasn't easy to see from the top of the tank, since it was a horizontal seam. If it's front driver's side, that's a likely culprit. __________________ 2020 M2 Competition \| 6MT \| Ohlins R&T 70/140 Swift Springs \| CDV Delete \| AudioTec Fischer MatchUP8 DSP /w Morel BMW Speakers/Subs \| Thinkware U3000 Dash Cam F/R \| More to Come!
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