Grape, Only pointing out that there are 4 part numbers for this item that are currently available from Mercedes.

I have no idea what number is the best design, I have seen them all and can not tell the difference between them. I simply wanted to caution some that are assuming the 3rd set of numbers in a Mercedes part number has anything to do with if the part has or has not been redesigned. The 00-00 is failing because they are the ones on the cars, they have the miles on them, I don’t think anyone should assume the 08 09 13 will last any longer.

This part is clearly a problem, and I think the fact that Mercedes has not actively worked to replace these as a preventative service is a shame. The 112 and 113 air sensors and the fuel tank senders in these cars are also a major problem that Mercedes has not acknowledged. The Mercedes I knew would correct these problems at the first service or sign of failure and often the customer would not have even known the dealership corrected them. It’s clear these type of service levels I remember are no longer in place.