I have the basic reader and got a code 110 7 times before taking the car in for O2 sensor replacement. The description of the code said "02 sensor, bank 2 sensor 1" I took the sensor to a Lube and Tune garage and asked them to install the sensor in "bank 2 - sensor 1" position. A note from this site previously said that this sensor would be on the driver's side, pre cat. I believe that is where it was installed, but will double check that today.

I am still getting the same 110 code (3 of them now) and the car is stalling at stops unless I increase the idle slightly !!??

Assuming the sensor was properly installed (??) which I will check -- should it really have been on the driver's side pre-cat ??

Also, what else would cause the Ml320 to stall when stopped in Drive? If I put it in neutral or Park -- which have a higher idle speed, it does not stall.

Please let me have your comments re (1) the proper location of the sensor; and (2) what might be still causing the stalling at a full stop in drive ????

Thanks, Ben Carter

__________________
Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)