Which MAF for 98 E320

[majooo]

Hello,
I just bought for my wife 1998 E320 wagon this weekend. (141 000 miles)
On the way home the CEL come on with
P0170
P0173
The car runs smooth.

I've look at numbers on the MAF:
Bosh
0 280 217 810
113 094 00 48

I've searched for this part, but it appears, this MAF is for larger V8 engines.

All searches for this year/car came back with a different part number:
0 280 21 75 15
112 094 00 48

The car came with a decent documentation of receipts. The MAF was replaced at dealership (at 80 000 miles).

1. Is there a different MAF for wagon vs. coupe?
2. Did they made a mistake?
3. Are these two MAF interchangeable?
4. What are the differences between the MAF?
5. Which one to order?

Thank you for your time.
M#.