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      08-26-2019, 08:40 PM   #170
SeanWRT
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Drives: E90 M3 & F87 M2
Join Date: Sep 2015
Location: Shanghai

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Had same issue. It closes on its own very frequently in heavy traffic, but keeps open fine when being away from downtown city.

First thought it's the blue tooth interference or the fuse in the trunk, it was not. Turned out to be the faulty BT module. Bought a new module from local dealer (no warranty coverage because I bought MPE from oversea) and problem fixed.
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