Just received replacement panels Parts # A163 690 05 87 to replace the ones the dealer installed under warranty some time ago, one disappeared while on the road and the adhesive block is still on the vehicle, the other one happened to come off while the car was still parked on the driveway and I re-glued it with JB Weld adhesive. Both had lost the shiny finish from factory and were due for replacement anyway. I live in south central New Mexico and for some repairs I take my 2002 ML500 to the dealer across the border in Cd Juárez, Cihuahua and I have already talked to them about replacing these parts. They are Mercedes Benz trained specialist at he Mercedes Benz dealer there, but their cost for labor makes the trip worthwhile. Regular service usually I have it done at the El Paso TX, dealer.