[fravel]

Hey all,

Currently in the process of overhauling my PCV system and I've hit a snag. On the underside of the intake manifold there is an angle connector (Item #7 in below picture) which contains a heating element. That heating element is powered through an electric connector (item #26)... while attempting to remove item #26 from item #7 I managed to pull the wires clean out of the back of the connector. Fortunately there are only 2 wires in question, but I have no idea which wire goes to pin #1 vs. pin #2.



I've already ordered a new connector to attempt to repair this, but I'm hoping someone can give me some guidance on how to actually wire it. Unfortunately both wires that go to that connector are jacketed in white so I have no way to distinguish between the two short of tracing them all the way back. Some forum research has lead me to understand that there have been some incidences of these heating elements shorting out and causing fires, so I'd really like to not screw this up.

EDIT: Got the info from a member on another forum - the wires *should* be different colors, but mine were both jacketed in white; one wire is hot (pin #1) and the other is ground (pin #2). Since my wires couldn't be distinguished by color I used a multimeter to ID which wire had continuity with chassis ground, then ran that wire to pin #2. By deduction the other wire has to be hot, so I sent it to pin #1.

[Three_thirty_I]

Would be curious to know about this too. But I suspect that it is simply a heating element which means that the polarity doesn't matter?? Not sure of course. But chances are that it will work either way. A short circuit would be if something goes wrong with the element itself, at least that's how I would imagine that would cause a fire! Terrifying thought that!

Hope someone has better insight about this though...

[matteblue3er]

http://www.bmw-planet.com/diagrams/release/en/

Java Workaround:
https://www.java.com/en/download/help/java_blocked.xml

[fravel]

Thanks for the links, but I wasn't able to get that to work for me.

Fortunately I was able to get in contact with someone who has the wiring diagrams, and he informed me that there is a hot vs. neutral with these wires. They are supposed to be jacketed in different colors but mine are not - so I used a multimeter to figure out which wire goes to ground. Pin #1 on the plug is hot, pin #2 is ground.

I'm planning to get everything put back together tonight, I'll report back to let y'all know how it goes.

[Three_thirty_I]

Originally Posted by fravel

Thanks for the links, but I wasn't able to get that to work for me.

Fortunately I was able to get in contact with someone who has the wiring diagrams, and he informed me that there is a hot vs. neutral with these wires. They are supposed to be jacketed in different colors but mine are not - so I used a multimeter to figure out which wire goes to ground. Pin #1 on the plug is hot, pin #2 is ground.

I'm planning to get everything put back together tonight, I'll report back to let y'all know how it goes.

Okay, that's good to know!! Glad you were able to get that information!

[fravel]

Car is all put back together and seems to be running well. No fires so far so I'm going to assume the information I got about wiring was correct.

Thanks guys!

[Three_thirty_I]

Originally Posted by fravel

Car is all put back together and seems to be running well. No fires so far so I'm going to assume the information I got about wiring was correct.

Thanks guys!

That's a relief and good to hear! Yep, with this potential fire risk from a relatively silly possible short circuit in these heated vent hoses, it's not a bad plan to have at least one fire extinguisher in the car! Something like the Fire Striker or so.

[3SeriesJayden]

I’m going to be doing a PCV breather kit along with valve cover gasket on my 328i 2011 n52, I see the angle connector that connects to the intake manifold , how would I access this and must I remove the intake manifold to install? Thank you! Can’t seem to find anything about the angle connector.

[TGTIW]

To access the angle connector you can remove either the intake manifold, or the alternator.
-remove the serpentine belt, unplug the Alternator and remove the 4 mounting bolts, move it down and out of the way and you can reach under the intake manifold and remove the angle connector.