Quote:
Originally Posted by Metallizer
So I've read over this DIY a few times and I'm trying to understand the significance of installing the Sonnax kit, is it an upgrade over stock? I have a 08 335i that is doing all kinds of wacky things that resulted in me having to trailer it home because it kept giving me and error code then jumping out of gear.
To me it makes sense for the solenoids to be bad along with the seal sleeves and seal adapter. From my understand the trans has never been serviced and has 160k on it.
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Here are the highlights from what kit the will help with. IMHO the installation is worth the trouble.