Maf sensor on petrol engine

[TedMartin]

Hi,
I've the Electronic Parts Catalogue from MB and nowhere can I find the MAF for the reference number.
My car is a 320cdi W211 2003. Are MAF sensors used in diesel engines or only on petrol ones?
Thanks
Ted

 

[SKIPPERDOG]

they are used on both .get your egr valve cleaned they can give airmas meter faults