After the message below from Alan McR., I gave the Pierburg MAF a try on my E300D. Have had it on there now for six years with no issues.

> As some of you may recall, our E300DT had a Mass Air Flow Sensor (MAF or

> MAS) failure some time back. After some research it appeared that there

> is a newer MAF used in the CDI motors. The VW TDI community seems
firmly
> convinced that this part is much more reliable than the original Bosch
> part. The Bosch part is also nearly twice the price.
>
> Throwing caution to the wind, I blew $73+shipping on MB part#
A6110940048.
> It installs perfectly in place of the original sensor, though a security

> torx bit is needed.

__________________
Len
'59 220S Cabriolet-SOLD and living happily in Malta
'83 240D 351,500 miles original owner-SOLD
'88 560SL 41,000 miles - totaled and parted out
https://sites.google.com/site/mercedesstuff/home
'99 E300 turbo 227,500 miles
'03 SLK320 40,000 miles - gave to my daughter
'14 Smart electric coupe 28,500 miles
'14 Smart electric cabriolet 28,500 miles
'15 Smart electric coupe 28,000 miles