Have Mercedes Questions? Ask a Mechanic for Answers ASAP
Hello, my name is Bobby. If it has a crack in the manifold then that will cause the air flow sensor to read incorrectly so there is no reason to change that sensor until the intake is replaced and then the codes are cleared to see if it returns. As for the pneumatic system, most of the time this system will continue to have a warning light if it has a leak. The air springs are the most common cause of a slow leak on this vehicle. Please let me know if you need more help.