30E9 bedeutet leider NOxkat wechseln, oder, viel billiger, Noxem verbauen.

BMW N43 N53 engine NOx emulator 30E9 30EA NOx catalytic converter
NOXEM series NOx emulator will restore the initial power, economy and smooth run of your car’s engine! an alternative for OEM NOx sensors: 11787587129…
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