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      04-13-2013, 10:35 AM   #1
DarkEnigma
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Question Leak - what is this?

Hello guys

Over the last few weeks we have noticed a strong burning smell coming from the engine and since I planned to do a service and oil change I thought nothing of it.

Today I came to do an oil change after having the engine running for a few minutes to get things warm, turned off, opened bonnet and could see light smoke coming from the engine and a horrible smell.

After looking, I see there a small leak towards the back as pictured. Does anyone know what this is and what needs to be done?

The car is an E90 320i Pre-LCI. Oil change went smooth!

Please help!!

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      04-13-2013, 11:54 AM   #2
makkan00
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Quote:
Originally Posted by DarkEnigma
Hello guys

Over the last few weeks we have noticed a strong burning smell coming from the engine and since I planned to do a service and oil change I thought nothing of it.

Today I came to do an oil change after having the engine running for a few minutes to get things warm, turned off, opened bonnet and could see light smoke coming from the engine and a horrible smell.

After looking, I see there a small leak towards the back as pictured. Does anyone know what this is and what needs to be done?

The car is an E90 320i Pre-LCI. Oil change went smooth!

Please help!!

Its Vacuum pump / its seal leaking. Is it N46 engine?
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      04-15-2013, 01:39 PM   #3
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Originally Posted by makkan00 View Post
Its Vacuum pump / its seal leaking. Is it N46 engine?
Yeah its N46 - is that what it is?

What do I need to do to fix?
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      04-15-2013, 02:01 PM   #4
makkan00
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Quote:
Originally Posted by DarkEnigma
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Originally Posted by makkan00 View Post
Its Vacuum pump / its seal leaking. Is it N46 engine?
Yeah its N46 - is that what it is?

What do I need to do to fix?
When the car is hold, put your hand behind that area and see if your hands get dirty with the oil.
If yes, its vaccun pump / its seal leaking.
If no, then possibly your rocker cover gasket.
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