P1518 - Intake Manifold Runner Control (Stuck Open) - Mercedes-Benz C-280 2007

Question

The car still running great, but the check engine light is on.
I checked it with my OBDII it say P1518 - Intake Manifold Runner Control (Stuck Open)
What should I do to fix that? Please help

Answer 1

What you have is a intake manifold tumble flap that stays open, If the  manifold switch solenoid gets stuck in the open position The variable tumble flap will stay open,Because it in the stuck open position replace the manifold switch valve