Mercedes W168 A Class A140 engine 168.031 60KW 82Hp


ECU: MSM 1.3 (A1661500179 (3) HW03.99)


It has a constant error P0410! (Secondary air injection system malfunction).


Note: This example does NOT have a factory installed secondary air pump or relay and fuse on the fuse box!


The problem is reflected in engine operation and cold start. Mass air flow sensor is corect.


Can anyone help me what is the cause of this error!