My first 335i was lemoned (BMW bought it back) because they couldn't fix the limp mode. Ordered another (6/13 production) and it too had limp mode early on.
I took it to the dealer and they had some software flash that took a few days. It has not done it since March 2014. I don't' think it's mechanical, as in relay etc.
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F30 Sapphire Black M-Sport 335i 6MT
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