XSeries-forum

Hello I have an 2015 X5 35d F15 with a drive train malfunction warning. I have the following codes: P0401 EGR flow insufficient, P0101 Mass or volume air flow sensor, P0299 Turbo under boost, P2279 intake air sys leak bank 1, 290900 Air mass sys air mass too high, 290A00 Air mass too high charging pressure control deviation, 244000 Charging pressure control, charging pressure too low, 27F000 Air mass sys charge air hose leak detected, 24CE00 Air mass measurement too high, 241200 Monitoring fuel injection rate, 240500 Exhaust gas re circulation Air too high, 440102 transfer box oil wear VTG.

I smelled an electrical smell a few minutes after the drive train malfunction and a check engine light. Any help or directions would be appreciated, thank you in advance for your time.

I'd look for a boost hose has a hole in it or has come off , you should be able to hear it with the bonnet open when the revs rise and the car starts to boost. Could also be the egr valve is stuck open but the burning smell may well help you find the issue as its possibly exhaust fumes/boost pressure etc escaping in the engine bay due to a hose leak