Hello everyone, I need some help where I should start looking. Hard to believe that one vehicle is currently half-decomposed waiting for spare parts and I should drive the R from Monday on (work trip and children to school) comes a mistake! Vehicle: R350 4 Matic Gasoline, EZ 05.2007 The yellow MKL came on the short way to football training, read out at home with the following entry: Secondary air system bank 1, signal not in the target area Secondary air system bank 2, signal n Is the pump running at cold start, runs for (today) 30 seconds. Is the pump the problem? Or something else? Please help, does not want to exchange indiscriminately ??. Thanks in advance