4HP22 fill and drain plugs washers

[GasketGoneWild]

Looking to service my 4HP22, I’ve got a service kit (filter, o rings and gasket) but noticed there isn’t any washer for the fill/drain plugs.

i haven’t removed the plugs yet as I want to check that they either they have a washer and don’t need one or hopefully can find out the size and get a washer from a local shop as I would like to change the transmission filter today or this week (parts typically take 5-7 days).

anyone know what size washer fit these plugs or do I have to get specific ones? Cheers

[TonyC]

I can't help with your question, but you have posted in the D2 section, doesn’t an D2 have a 4HP24?

Is the 4HP22 a typo, are the service parts interchangeable , do you have the right/wrong parts?

Tony

[Tins]

I can't help with your question, but you have posted in the D2 section, doesn’t an D2 have a 4HP24?

Is the 4HP22 a typo, are the service parts interchangeable , do you have the right/wrong parts?

Tony

Can be either*. Both are physically almost identical, the 24 has stronger internals I believe. The drain plugs will be the same.


* Mine's a 22.

[TonyC]

Can be either*. Both are physically almost identical, the 24 has stronger internals I believe. The drain plugs will be the same.


* Mine's a 22.

Well, there you go.

Is a 4HP22 in a D2 an electronic box?

I thought a 22 was a full hydraulic box, as used in a D1, and a 24 was a electronic box as well as stronger.

Disclaimer!
They're both boxes of black magic not to be trusted 🤪

Tony

[shack]

All D2s with auto's came with the EH version.

Most are 4hp22, the US version with the 4.6 had the 4hp24.

I think some late UK 4.6 ones had the 24 as well although I'm not 100% sure.

Same box as in the Motronic 4.6 p38.

The 4hp24 is a stronger box but certainly not a straight swap.

[Tins]

Confusing in that the D1 also had the 22, only not electrickery.

[Tins]

The 4hp24 is a stronger box but certainly not a straight swap.

No, but doable.

[GasketGoneWild]

Looking to service my 4HP22, I’ve got a service kit (filter, o rings and gasket) but noticed there isn’t any washer for the fill/drain plugs.

i haven’t removed the plugs yet as I want to check that they either they have a washer and don’t need one or hopefully can find out the size and get a washer from a local shop as I would like to change the transmission filter today or this week (parts typically take 5-7 days).

anyone know what size washer fit these plugs or do I have to get specific ones? Cheers

so now we’ve sorted out all that, does anyone have a answer?

[admiralranga]

stc4099 is 14.74mm OD, 10.30mm ID 1.52mm thick as per my very cheap set of caliper's. I'd expect it to be reasonable sourceable given the number of bmw's that ended up with it.

[shack]

so now we’ve sorted out all that, does anyone have a answer?Apologies...

[Tins]

so now we’ve sorted out all that, does anyone have an answer?
Get used to it. Threads rarely stay on topic here. But they usually get there in the end.

[GasketGoneWild]

Get used to it. Threads rarely stay on topic here. But they usually get there in the end.

yeah my apologies if that seemed a bit rude haha i honestly didn’t mean it!

another quick question, did the filter and fluid change. Not running I managed to get about 2.5L in before it trickled out. I then started it and put say another 1L in before it trickled out. I then went through from Park to 1st and back slowly and put another 0.5L maybe a touch more and let it trickled until it turned into a drip and replace the plug.

now I thought I’d of got closer to 6-7L at least but only put about 4L in it. Does that seem right?

[shack]

yeah my apologies if that seemed a bit rude haha i honestly didn’t mean it!

another quick question, did the filter and fluid change. Not running I managed to get about 2.5L in before it trickled out. I then started it and put say another 1L in before it trickled out. I then went through from Park to 1st and back slowly and put another 0.5L maybe a touch more and let it trickled until it turned into a drip and replace the plug.

now I thought I’d of got closer to 6-7L at least but only put about 4L in it. Does that seem right?Engine running but trans not too hot?

[GasketGoneWild]

Engine running but trans not too hot?

well it definitely felt warm to touch but I wouldn’t say hot.

[shack]

well it definitely felt warm to touch but I wouldn’t say hot.If you had the engine running then it should be ok.

[Tins]

yeah my apologies if that seemed a bit rude haha i honestly didn’t mean it!

another quick question, did the filter and fluid change. Not running I managed to get about 2.5L in before it trickled out. I then started it and put say another 1L in before it trickled out. I then went through from Park to 1st and back slowly and put another 0.5L maybe a touch more and let it trickled until it turned into a drip and replace the plug.

now I thought I’d of got closer to 6-7L at least but only put about 4L in it. Does that seem right?

That's pretty much the procedure. You really only drain about half the full capacity through the drain plug. So much remains in the converter, cooler and lines etc. You will never get it all changed, short of removing the whole lot from the car. If you're new to the car and are concerned, and have the $$$, you can do another one or two changes after a few drives. That would change a fair bit more of the old oil. I wouldn't really bother unless the oil you removed is particularly nasty.

BTW, I didn't think you were being rude. Your comment was fair enough. But AULRO is a loose group of mates and conversations can ramble... Bringing them back to the point is often necessary. [bigsmile1]

[GasketGoneWild]

That's pretty much the procedure. You really only drain about half the full capacity through the drain plug. So much remains in the converter, cooler and lines etc. You will never get it all changed, short of removing the whole lot from the car. If you're new to the car and are concerned, and have the $$$, you can do another one or two changes after a few drives. That would change a fair bit more of the old oil. I wouldn't really bother unless the oil you removed is particularly nasty.

BTW, I didn't think you were being rude. Your comment was fair enough. But AULRO is a loose group of mates and conversations can ramble... Bringing them back to the point is often necessary. [bigsmile1]

cheers mate, that makes sense. I was only confused as old mate I watched on YouTube put what looked like 5-6 1L bottles in. Not sure how old the original oil was but I’d didn’t look horrible when compared to the new stuff I put in.