I want to bench test this air flow meter and I need the pin diagram first.It's the hot film type. This has the 5 pin round plug with 4 pins used..It's not the rectangular plug. I looked at the hfm2,hfm5 pdfs found on here and they use the rectangular plug. I've been looking all over and can't find a diagram for this one.
part# is mercedes 000-094-05-48, bosch 280-217-500.

The HFM sensor is B2/5 in the attached diagram.

Attached Files

24072002.pdf (42.3 KB, 294 views)

__________________
2002 E320 T-sedan (210.282) 219K
1994 E320 (124.032) 252K (dearly departed in hit & run)
1988 260E (124.026) 301K (sold)

That's it, I've been searching the web for an hour for that..Thanks!!