Oil leak. Any ideas?

rlh23 · 10-17-2021, 08:59 PM

I’ve had my car for 30 days (< 1k miles driven). So far I’ve had a coolant hose leak repaired and have chosen to ignore the washer fluid reservoir leak. My daughter noticed some black drops on the garage floor this afternoon so I took a look under the car. I took this picture looking front to back on the passenger side of the car. For some reason it posted upside down. Any ideas what’s going on here?

Car is a 2016 750i xDrive with 72k miles. The frustrating thing is I had a PPI done because I bought the car out of state and of course it got a clean bill of health.

LuckyW · 10-18-2021, 08:34 AM

Looks like a real big leak check it out ,...

Scrh1 · 10-28-2021, 09:54 PM

Probably several items that go at once and leak. Turbo coolant lines and a few others that go bad…..

https://www.bimmerfest.com/threads/t...lines.1397575/

This thread might help. Fwiw I had them done on my 2017 g12. Noticed a few drops of oil one morning on drivers side front and had BMW come get it. Wound up replacing all turbo coolant lines, inter coolers and a few other items while they were in there. The link above gives you some options.

Scrh1 · 10-28-2021, 09:58 PM

This post gives you the diy….diff car but same motor family and fix

https://f10.5post.com/forums/showthread.php?p=25097713

rlh23 · 10-28-2021, 10:08 PM

Interestingly enough I took it into my Indy and they said they couldn’t find a leak. I honestly don’t know what to think.

Scrh1 · 10-28-2021, 10:19 PM

They would have had to take the top of the motor and turbos off to find it is my thought. All the shielding under the car etc catches a lot of oil and it does burn off from heat. No telling though. Any coolant loss noticed? Have you been monitoring oil consumption ( if any)?

Opie55 · 10-31-2021, 09:12 AM

That does not appear to be engine oil unless it was dripped before it went into the engine. It's too clear and it looks too light weight. Could be brake fluid. Look above the areas where you took the pic with a flashlight and see if you can see the source. If not, hose it off and see if it returns.

10-17-2021, 08:59 PM	#1
rlh23 Private First Class 13 Rep 124 Posts Drives: 2016 BMW 750i xDrive Join Date: Mar 2013 Location: Madison, MS iTrader: (0)	Oil leak. Any ideas? I’ve had my car for 30 days (< 1k miles driven). So far I’ve had a coolant hose leak repaired and have chosen to ignore the washer fluid reservoir leak. My daughter noticed some black drops on the garage floor this afternoon so I took a look under the car. I took this picture looking front to back on the passenger side of the car. For some reason it posted upside down. Any ideas what’s going on here? Car is a 2016 750i xDrive with 72k miles. The frustrating thing is I had a PPI done because I bought the car out of state and of course it got a clean bill of health. Attached Images
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10-18-2021, 08:34 AM	#2
LuckyW Second Lieutenant 86 Rep 204 Posts Drives: BMW 520d M Sport Join Date: Aug 2020 Location: N/A iTrader: (0)	Looks like a real big leak check it out ,...
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10-28-2021, 09:54 PM	#3
Scrh1 New Member 9 Rep 25 Posts Drives: 17’ BMW 750i Join Date: May 2019 Location: East coast iTrader: (1)	Probably several items that go at once and leak. Turbo coolant lines and a few others that go bad….. https://www.bimmerfest.com/threads/t...lines.1397575/ This thread might help. Fwiw I had them done on my 2017 g12. Noticed a few drops of oil one morning on drivers side front and had BMW come get it. Wound up replacing all turbo coolant lines, inter coolers and a few other items while they were in there. The link above gives you some options.
	Appreciate 0 Quote

10-28-2021, 09:58 PM	#4
Scrh1 New Member 9 Rep 25 Posts Drives: 17’ BMW 750i Join Date: May 2019 Location: East coast iTrader: (1)	This post gives you the diy….diff car but same motor family and fix https://f10.5post.com/forums/showthread.php?p=25097713
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10-28-2021, 10:08 PM	#5
rlh23 Private First Class 13 Rep 124 Posts Drives: 2016 BMW 750i xDrive Join Date: Mar 2013 Location: Madison, MS iTrader: (0)	Interestingly enough I took it into my Indy and they said they couldn’t find a leak. I honestly don’t know what to think.
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10-28-2021, 10:19 PM	#6
Scrh1 New Member 9 Rep 25 Posts Drives: 17’ BMW 750i Join Date: May 2019 Location: East coast iTrader: (1)	They would have had to take the top of the motor and turbos off to find it is my thought. All the shielding under the car etc catches a lot of oil and it does burn off from heat. No telling though. Any coolant loss noticed? Have you been monitoring oil consumption ( if any)?
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10-31-2021, 09:12 AM	#7
Opie55 Colonel 1195 Rep 2,906 Posts Drives: '15 650i Convertible Join Date: Apr 2018 Location: US iTrader: (0)	That does not appear to be engine oil unless it was dripped before it went into the engine. It's too clear and it looks too light weight. Could be brake fluid. Look above the areas where you took the pic with a flashlight and see if you can see the source. If not, hose it off and see if it returns.
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