I have two 99 E320s. one with 110,000 and another with 30,000 miles.
The one with 110,000 has had the air mass sensor replaced 3 times.
I just replaced it again and it went out after about 2 weeks. The trouble
code is P0136 and P0141. Any idea what's eating these things? Or is
it maybe not the air mass sensor and something else giving this code?