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      06-08-2020, 11:22 AM   #7
belcom
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Drives: '18 540i, '06 Z4si, '07 Z4MC
Join Date: Nov 2014
Location: Toronto

iTrader: (1)

Cleaned the MAF, but no change still. Used CRC MAF cleaner.

I just found the invoice from the last oil change and it seems they used 5w30 synthetic. Looking at the fact that they used an off brand china filter makes me question if the oil is of the proper origin or viscosity to begin with or whether its even synthetic.

VANOS depends on proper oil flow to work correctly is my understanding
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