* ESI out of Florida (888.818.2244) sells replacement lenses for the W210, and at a small fraction of the cost of the head light assemblies.
* You will need to take out the HL assemblies,though, to replace the lenses. The first time took me 90min a side, and I took my time. By far the biggest problem is releasing/latching the plastic tabs, on the HL assembly, which secure the lense in place. The tabs are easy to crack off on the older cars. A new seal comes glued to the new lense.

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ASE Master Tech
Quality Enterprises
Mercedes Svc. & Restoration
Sheridan, IN
317.769.3536