Passenger side rear view mirror
 

I brought this mirror a long time ago when I had a 1990 300SL but it didn't fit they told it was for a newer W129 97 to 02 I just want to confirm if anyone owns a W129 from 97 to 02 be so kind a confirm see the pictures

Based on my research, it is for a 99 / 02 if it was sold to you as fitting a R129. That makes for 3 different mirrors 90 to 95 ish ( deep body line , rectangular mirror ) , 96 to 98 ( shallow body line , rectangular mirror ) and 99 to 02 ( smooth body , oval mirror ).

Have a look on car-part.com for some pics.

In the area of the yellow marker, look at the squares to determine when the housing was made and a part number that starts off with 129.

Tank you I'll look at housing for the part number

Is not a R129 mirror the part number stars off with a 170 so its a SLK mirror so there are only 2 different mirrors for the R129 tanks 97SL320

Thanks for the update. There are 3 R129 mirrors ( just not the one that you have ) , car-part shows an oval type from 99 / 02 .