If your BMW is showing these symptoms of intermittent stalling, with no trouble codes present, it might be the intake camshaft position sensor. If you’re lucky, you’ll eventually see the P0340 generic trouble code appear on your BMW scan tool. That will confirm the intake camshaft position...
BMW X5 bad mass air flow sensor (MAF) symptoms and causes The mass air flow sensor or MAF sensor is part of the intake system in BMW X5 responsible for measuring … Troubleshooting~ December 17, 2021 BMW X5 slow acceleration causes and how to fix it ...
Second way. You need to shave the cylinder head to increase the compression ratio to ~11. After that you need to do head porting, buy a cold air intake, Schrick camshaft 284/280 deg. (or something similar) with springs, reinforced rocker arms, headers, performance exhaust system 3” (or...