well since you havent changed your screen name, you arent getting any help here...
hehe just kidding.
Is there a pin on the left wiper in the place the right side has it missing?
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.