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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 12-27-2012, 01:44 PM
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ryder23 ryder23 is offline
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Mein Auto: 1998 328i Manual
What is this above T-Stat Case?

Hi all,

WHat is the part below circled in large red that is above the thermostat housing, next to the oil filter case? In the smaller circle, there is a 19mm bolt that I would like to remove to insert the new vacuum hose to the metal hose for the secondary air system.

Question2: Can I remove this bolt that holds the hose there or is there something I need to consider before doing so?

Thanks all.

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  #2  
Old 12-27-2012, 01:53 PM
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dc_wright dc_wright is offline
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Mein Auto: '96 328iC, '04 325Ci
If you were thinking this was a vacuum line that you could tap into that's not correct.

The area in the larger red circle is the Vanos valve. The part on the opposite side is the vanos solenoid. The banjo bolt in the smaller circle is an oil line that routes the oil to the vanos. If you undo the banjo bolt you want to get two of the metal seals (one on each side of the banjo) so that when you put it back together it won't leak or seep oil.

The vanos changes the timing of the intake cam with RPMs to increase power at higher RPMs.
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Old 12-27-2012, 01:57 PM
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ryder23 ryder23 is offline
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Thanks for the info. I just want to remove it to gain access to re-install the hose for the secondary air system,, which is just underneath the bigger oil line hose.

When I remove the banjo bolt will there be much oil coming out of the VANOS oil line or Vanos valve housing side?

Last edited by ryder23; 12-27-2012 at 02:02 PM.
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Old 12-27-2012, 02:11 PM
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dc_wright dc_wright is offline
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Got it. There won't be much oil to come out when you pull the banjo bolt. Maybe an ounce at the max, but more likely just a few drops.
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Old 12-27-2012, 02:15 PM
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ryder23 ryder23 is offline
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Ok thanks again.. will go ahead and open her up

<>

Job done. Just only a few drops of oil like you said.

Last edited by ryder23; 12-27-2012 at 03:01 PM.
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Old 12-28-2012, 12:36 AM
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If you notice a leak coming from the hose, you will need to replace the 2 copper crush washers. Most of the time you can get away with reusing the old ones though.
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