Factory Air Filter
The Factory Filter is made by: Mann
Part Number is: C 3698
This filter is the exact same as the factory, except with out the Mercedes name.
I buy for about $40 the mercedes one just in case they complained, but I think you're right, it looks identical even has the same number on it.
Did you notice anything from the change?
I changed mine at like 18 months, 21,000 miles, and I thought right after I noticed it was a bit more on the go. Mine was quite dirty.
Have own experience on cars and ships.(former trawler/merchant vessel chief engineer)
Use it with confidence.
It won't improve performance unless your filter is already clogged with dirt.







