It might be becuase there were many different versions:

MXV4
Green X MXV4
MXV4+
Energy MXV4
Radial XSE MXV4
MXV4 ZP

All of them however are all-season. The M+S rating is there if you look on the tire, It might not be as bold as on other MXV4 variations though.

If its an MXV4 or just an MX4, XW4, XH4, XGT 4, XGT V4, XGT H4, Pilot XGT H4, Pilot XGT V4, Pilot XGT Z4.

Basicaly the 4 describes all-season, so no need to worry.

The only Michelin Tire that aren't M+S rated are:
Pilot Sports
Pilot MXX3 & MXX3 SX
Pilot SX GT
XGT Z/V



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Chirag (Charlie) Patel

- 99 Mercedes-Benx ML 430 V8 w/custom TV, Video, UHF, speaker system
- 93 190E 2.6 (4-sale) w/ an amp, equalizer, and CD-changer, integrated w. stock stereo for integrated cellular phone speaker system
- had a 93 190E m103 3.2, 5-speed trans,
- had a 88 300E 2.6
- had a 84 300TD w/275k+ miles
- 2001 C-Class - Maybe (if 190E sells)