Cold Start Gremlin!

[ac427]

^^ Indeed. Sorry ac247, I don't know if you saw, but I edited my response on the last page a couple of minutes after posting it -- the one that was in the other picture (the longer one) was the manual one, and this is the SMG one.

No worries, It's all good information. I just happened to have a spare pipe and the engine bay photo on my phone. So i thought i would post them.

Do you have a part number for the pipe in the pic below. I cannot find anythiny like it in RealOEM.

[ATB88]

SMG on the left, manual on the right, pictured how they are installed in the car, if the car has been converted you can definitely just install the manual piece and get rid of the SMG 3 part design.

On the other hand, the SMG part is ~$45 and the 6MT part is ~$150, so I'd stick with the SMG part unless I was being really picky about the conversion being "perfect"

[Slideways]

SMG on the left, manual on the right, pictured how they are installed in the car, if the car has been converted you can definitely just install the manual piece and get rid of the SMG 3 part design.

True, but those SMG to manual owners will have to pay three times more to get the manual version over keeping the SMG version. That little check valve must not be cheap lol

[bmwfnatic]

That is the SMG version and won't work on the manual; however, if your car was converted to manual and the installer kept SMG version, then you will need the SMG version.

SMG on the left, manual on the right, pictured how they are installed in the car, if the car has been converted you can definitely just install the manual piece and get rid of the SMG 3 part design.

[ATB88]

^^ Indeed. Sorry ac247, I don't know if you saw, but I edited my response on the last page a couple of minutes after posting it -- the one that was in the other picture (the longer one) was the manual one, and this is the SMG one.

[Slideways]

Thank you. It is a manual.

Here is a pic of the pipe for scale:



Is the 4 prong connector on the end a different type of NORMA connector?

That is the SMG version and won't work on the manual; however, if your car was converted to manual and the installer kept SMG version, then you will need the SMG version.

[ac427]

Yeah, judging from this you have a manual. The SMG uses another design with a hard pipe and multiple hoses to go around the SMG pump.

Thank you. It is a manual.

Here is a pic of the pipe for scale:



Is the 4 prong connector on the end a different type of NORMA connector?

[bmwfnatic]

Apologies. I was looking at the pic the wrong way. Is that the same short pipe in my photo below?

Yeah, judging from this you have a manual. The SMG uses another design with a hard pipe and multiple hoses to go around the SMG pump.

[ac427]

Well, I think the point of it is that it is supposed to be “under water” aka under the oil level, hence the dipstick tube is used for this on the M54. So that whatever is draining through it is not fighting against possible positive crankcase pressure.

Apologies. I was looking at the pic the wrong way. Is that the same short pipe in my photo below?

[bmwfnatic]

Thanks for the info. Where does the other end of that pipe go to?

Well, I think the point of it is that it is supposed to be “under water” aka under the oil level, hence the dipstick tube is used for this on the M54. So that whatever is draining through it is not fighting against possible positive crankcase pressure.

[ac427]

There is the bung, it has a few inches of small pipe attached to the bottom of it, you can screw it out and clean it out to make sure it's not blocked.
There's a 16x12x1.5mm aluminium crush washer below it (not sold separately but just use a generic one) and they seem to be torqued to around 18nm from factory.

EDIT: Here is a picture of the actual part removed.

Thanks for the info. Where does the other end of that pipe go to?

[bmwfnatic]

Do you have any picture of the male bung in the oil pan? I will be replacing all those hoses in X'mas time

There is the bung, it has a few inches of small pipe attached to the bottom of it, you can screw it out and clean it out to make sure it's not blocked.
There's a 16x12x1.5mm aluminium crush washer below it (not sold separately but just use a generic one) and they seem to be torqued to around 18nm from factory.

EDIT: Here is a picture of the actual part removed.

[ethan]

Yes it does. The check valve allows the oil return to oil pan, but doesn't allow the air being sucked during vacuum.

Did you check this on the new factory tube you just bought? I've asserted this for a while, but want someone else who has known-good OE hardware to confirm it since I made my own hose.

[y2k_o__o]

Thanks Mate. Is there a check valve in the line?

Yes it does. The check valve allows the oil return to oil pan, but doesn't allow the air being sucked during vacuum.

[y2k_o__o]

There’s no connection to the dipstick, there’s a male bung threaded into the oil pan.

My bad, I have never taken this apart in the past when I clean the throttle body, so I assumed that REALOEM has provided a correct diagram.

Do you have any picture of the male bung in the oil pan? I will be replacing all those hoses in X'mas time