Are the air mass sensors wear and tear parts?

In connection with the excessive oil in my TDI (see below), I discussed with the mechanic what all parts could potentially break or be damaged.

My opinion: LMM, LLK, Wastegate are clogged, oil residue forms on the valve seat, Cat.
The Opinion of the Audi Master: Only Cat.

I then explained my theory to him about the LMM, in the sliding operation, very little air moves through the intake tract, the crankshaft rotates at a high speed and creates an oil mist due to the excess oil, which enters the intake tract through the crankshaft housing ventilation, here it is deflected due to the little air movement towards the LMM and so it gets dirty, this measures incorrectly due to the oil film and generates an error message in the control unit.
He then rubbed his chin and thought aloud, 'Maybe we could exchange our LMMs almost every day.'

Every day, one LMM per Audi workshop, I can only say that this will result in a substantial revenue.

Hi

Quote:

Then I explained my theory to him about the LMM. In the manual mode, very little air moves through the intake tract, the crankshaft rotates at high speed and creates an oil mist due to the excess oil, which enters the intake tract through the crankshaft housing ventilation. Here, due to the little air movement, it is deflected towards the LMM and so contaminates the LMM. This measures incorrectly due to the oil film and generates an error message in the control unit.

This might still be true for a conventional gasoline engine, but for a TDI, running on methanol is definitely not a problem (as long as the oil consumption remains below the diesel consumption *gg*).
Because, lacking a throttle valve, he also gets the full cylinder filling in the back.

Even at idle speed, the air flow rate for the 1.9L engine is approximately
15 liters per second, which, given an intake pipe diameter behind the LuFi of approximately 10 cm = approximately 80 cm², results in an average flow velocity of almost 2 m/sec or 7 km/h.
It will likely be difficult for the oil mist from the KGE to make its way to the LMM against this current

However, the situation is different after stopping: then nothing flows anymore, and the oil vapor that may still be present in the KGE can potentially spread to the LMM.