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      08-20-2012, 03:37 PM   #533
Fsarc
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Drives: 2011.5 E92 M3 LMB
Join Date: Nov 2007
Location: BC-Northern NJ

iTrader: (3)

Not sure if I missed it somewhere, but can anyone explain the differences in the amount of time it takes to upgrade to 231e? For example, most times I've read are 2-3 hours of programming at the dealer and as quick as 5 minutes (after a 35 minute read time) for a 231e update from a "tuner" company. Are some tuners only using 231e update on the DME and hence the quick times? If so, shouldn't all the modules be updated together to the latest software version rather than picking and choosing?