Thread: M135i zf8hp
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      03-03-2016, 01:47 PM   #3
ttimbo
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Drives: F48 X1 25i AW; F20 M135i AW
Join Date: Jan 2013
Location: Australia

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There is a torque limit for the ZF 8AT fitted to the M135i, which is just above the (unmodified).engine's output. In the early days, there was quite a bit of chat about this, but I've not heard of any broken gearboxes. As with all modding, you are taking risks.
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