left mirror turn signal on 2005 Mercedes-Benz C240 4MATIC

how do I check and change a left mirror turn signal

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
this is not a bulb; it is a panel of LED's that mounts in the mirror cover. MB dealer only for the part, then remove the mirror cover carefully, unplug and replace the light strip.