Problem & Solution
Common among these chassis:
R107
W108 W109
W110 W111 W112 Sedan
W111 W112 Coupe
W113
W114
W115
W116
W123
W124
W126
R129
W140
W201
In Kent's YouTube video he will show you a great example of what can happen to an older glass faced headlight when neglected. In this case it could have easily been prevented. And the fix only takes a few minutes and costs pennies. Most lens covers today are plastic and the problem does not often occur. But, if you have an older car with glass headlights keep a close eye on them.