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  #1  
Old 07-16-2017, 11:54 AM
wgomez28 wgomez28 is offline
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Oil in air coolant

I took my car in for an oil change just to find out that they found some oil in the air coolant,
How serious is this & how much will this cost me?

Thanks in advance!


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  #2  
Old 07-16-2017, 12:22 PM
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What the heck is air coolant???

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Old 07-16-2017, 12:34 PM
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intercooler I guess so there is an oil leak near the turbo
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Old 07-16-2017, 12:37 PM
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Can't be the inter-cooler because they are Air to Air on the 335, not air to water like the 340. Description makes no sense as stated.

If they are garbling up the air to air FMIC which has no coolant in it showing some oil inside its not all that unusual so it depends on how much oil & how old the car is.

Oil can come from blow by with a not to great PCV valve. One solution for that is a new valve & or an Oil catch can. All inexpensive. Turbo going bad is the other but should be a high millage car. Expensive fix.

Are you adding much/any oil between oil changes? If not forget about it. Why did they open the inter-cooler connections in the first place?
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Old 07-16-2017, 12:46 PM
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Originally Posted by bear-avhistory View Post
Can't be the inter-cooler because they are Air to Air on the 335, not air to water like the 340. Description makes no sense as stated.

If they are garbling up the air to air FMIC which has no coolant in it showing some oil inside its not all that unusual so it depends on how much oil & how old the car is.
air coolant => air cooler => intercooler

op just didn't know the name of it
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Old 07-16-2017, 12:58 PM
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Quote:
Originally Posted by acoste View Post
air coolant => air cooler => intercooler

op just didn't know the name of it
Took that into account when I posted. That said, if that is exactly what he was told I would be a little concerned about the mechanic who said it.
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Old 07-16-2017, 01:46 PM
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Originally Posted by bear-avhistory View Post
Took that into account when I posted. That said, if that is exactly what he was told I would be a little concerned about the mechanic who said it.

If turbo's leaking oil....maybe.
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Old 07-16-2017, 02:39 PM
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Quote:
Originally Posted by CALWATERBOY DUE View Post
If turbo's leaking oil....maybe.
I swapped FMIC on the old car pretty early in its life & there was trace oil in the cooler. If you remember the valves were cokeing up due to oil in the air stream at that time requiring a Walnut blast. A pretty good chunk of the 335's that were pushed had the problem. Solution was the catch can.

With the OP's car age, mileage & oil usage should tell how serious it is.

I am just not a happy camper with mechanics that can't clearly tell people what is wrong, why & what the alternatives are. Would hate to see a guy get new turbos when a new PVC valve was good enough.
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  #9  
Old 07-18-2017, 10:27 PM
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Quote:
Originally Posted by wgomez28 View Post
I took my car in for an oil change just to find out that they found some oil in the air coolant,
How serious is this & how much will this cost me?

Thanks in advance!


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Please tell us exactly what the service rep said.

What you wrote makes no sense. There is coolant in the radiator. There is refrigerant in the air conditioning system. And the refrigerant has oil suspended in it.

No air coolant though.
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Old 07-19-2017, 06:52 AM
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Quote:
Originally Posted by wgomez28 View Post
I took my car in for an oil change just to find out that they found some oil in the air coolant,
How serious is this & how much will this cost me?

Thanks in advance!


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? need a better description of the issue
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  #11  
Old 07-19-2017, 07:12 AM
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You'll get oil in the inter cooler and tubes also if car has been over filled at an oil change.
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Old 07-20-2017, 06:49 AM
wgomez28 wgomez28 is offline
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This is what the bmw service department sent me, maybe this will make a little more sense.


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  #13  
Old 07-20-2017, 07:05 AM
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Yes it does. Those are the oil filter housing gaskets.
Gaskets failed and the oil leaked into the coolant.

http://www.realoem.com/bmw/enUS/show...65#11428637821
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Old 07-20-2017, 09:01 AM
CALWATERBOY DUE CALWATERBOY DUE is offline
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Quote:
Originally Posted by acoste View Post
Yes it does. Those are the oil filter housing gaskets.
Gaskets failed and the oil leaked into the coolant.

Yep, there it is.

OP, you was way off.....waaaaaaaaaaay off! Why? A-cause your Service Advisor didn't explain it to ya.

Now, that's just wrong - you should complain, and detail your pain and suffering right here at Bimmerfest, having titled your thread misleadingnessly. Possible: You can sue!

BMW Service Advisor when asked to show his qualifications:



Last edited by CALWATERBOY DUE; 07-20-2017 at 09:07 AM.
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Old 07-20-2017, 09:02 AM
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`118513 is the timing chain cover gasket.

Wondering where the leak was & what it leaked into. Is there a connection to the oil filter housing & the cooling system?
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Old 07-20-2017, 09:06 AM
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Originally Posted by bear-avhistory View Post
`118513 is the timing chain cover gasket.

Wondering where the leak was & what it leaked into. Is there a connection to the oil filter housing & the cooling system?
that's the intake manifold gasket. I guess it needed to be removed to access the ofh.

http://parts.bmwofalexandria.com/pro...52d242%29.html
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Old 07-20-2017, 06:16 PM
wgomez28 wgomez28 is offline
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Great, I'm glad it makes sense now & I appreciate all of your feedback.
Now can someone tell me how serious this is & if it is an urgent thing to fix, thank you!


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Old 07-20-2017, 07:19 PM
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Originally Posted by bear-avhistory View Post
A pretty good chunk of the 335's that were pushed had the problem. Solution was the catch can.

Would hate to see a guy get new turbos when a new PVC valve was good enough
Please tell me more!
I have a 2014 with the 6-cyl N55 engine and I've been thinking about a pre-emptive catch can install. The dealer mechanic told me that the PCV is integrated into the valve cover (mother-f*****), so the only sensible thing to do with the PCV is clean it. But a catch can is downstream of the PCV... can you please share what you know?
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Old 07-21-2017, 09:17 AM
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Originally Posted by Rebound View Post
Please tell me more!
I have a 2014 with the 6-cyl N55 engine and I've been thinking about a pre-emptive catch can install. The dealer mechanic told me that the PCV is integrated into the valve cover (mother-f*****), so the only sensible thing to do with the PCV is clean it. But a catch can is downstream of the PCV... can you please share what you know?

http://www.burgertuning.com/instruct...tall_guide.pdf
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