My ML430 1999 some times will turn off by itself when idleing. Never when moving. If I press the accelerator on time then the car recuperates and it does not go off. It is happening about four times a week. Read a code P0100 (Mass or Volume Air Flow Circuit Malfunction). Do I replace the MAF unit? Any thing I should try before doing this? If I do end up replacing the MAF unit; could anyone suggest were I can find instructions?
Thank you
Luis

99% of the time that code means a bad mass air flow sensor.

Replacement is simple, just a couple of clamps & an electrical plug.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator