BMW ZF 8-speed automatic transmission oil change

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Apr 15, 2010
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I noticed that some kits include this:

OEN 24 14 7 588 896 — BMW
OEN 7 588 896 — BMW

do you think it should be changed or not?
I changed the ATF in my 435i at 55k miles and I also changed the sleeve because they were known to leak on the ZF6HP. It's not an expensive part.
 
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Jan 20, 2013
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Ontario, Canada
Hi everyone, I've watched a lot of videos on Youtube and actually, the oil change is done as you explained to me, quite simply.

The only exception is this video:
even if he speaks in Italian what he does you understand it anyway



What do you think?

Il lavaggio non e' necessario, dipende solo a che tipo di cambio preferisci, uno completo oppure meno. Questo signore qui, ha spiegato bene il lavaggio anche se e' una Toyota:

Sostituisci anche la parte plastica rotonda che puo' causare una eventuale perdita di olio alla vostra vettura.
 
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bismillah

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Il lavaggio non e' necessario, dipende solo a che tipo di cambio preferisci, uno completo oppure meno. Questo signore qui, ha spiegato bene il lavaggio anche se e' una Toyota:

Sostituisci anche la parte plastica rotonda che puo' causare una eventuale perdita di olio alla vostra vettura.

Thank you.

I have read other topic on this forum about the maintenance of ZF 8HP gearbox and practically always talk about a simple oil and sump change; very few speak of complete washing / oil change with special tools.

PS: I knew that boy, (it seems) he sadly committed suicide less than a year ago, they talked in the newspaper
 
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Ancora un'altra buona spiegazione da Emanuele, dove c'e' la perdita alla spina elettrica, e hai bisogno di quella boccola su la tua BMW:
 
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pros don’t use a scan tool or a temp gun they just wait two minutes and fill.

the transmission will never reach 40c at idle unless you knock yourself on the oil pan and pass out
Depends on the "professionals" you talk to...

But yes, the ZF8's take a long time to reach 40C. You'll probably have to drive it around the block a few times.
 
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Toronto-ish, Canada
On these, yes.

On the ZF 5 speed fitted to the E39 540i, it was a frantic race to complete the procedure as the fluid temp shot skyward. ATF/coolant heat exchanger is to blame, I believe.

When I did my F10 535 a couple of years ago I prepared for the same and was greeted with a lazy yawn-fest lying under the car waiting for the temp to creep up into the desired range. IIRC cooling is ATF/air on my F10. F10s with V8s have ATF/coolant, so owners of those vehicles might have to move faster.
 
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pros don’t use a scan tool or a temp gun they just wait two minutes and fill.

the transmission will never reach 40c at idle unless you knock yourself on the oil pan and pass out
It really depends on what ambient temperature is when you work on it, in a hot 30+'C day it takes less than 10 minutes to reach 40'C, trust me I have done it with a scan tool.
 

bismillah

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Mar 24, 2013
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I have already ordered the oil pan twice but continue to receive it like this. It's right? it seems to me that a magnet is missing.

In your opinion is it correct or is it defective?
 

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Joined
Mar 20, 2008
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USA
I have already ordered the oil pan twice but continue to receive it like this. It's right? it seems to me that a magnet is missing.

In your opinion is it correct or is it defective?

look in the box to see if it fell in there. If so, you can just take it out of the box and slide it into that slot :)

or you could reuse a magnet from the old pan :sneaky:
 
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