Can anyone tell me how to remove the lens on a 2001 E320 xenon headlight? I have removed the four silver retaining clips. I don't know how to proceed past this step. I am afraid that "muscling" the lens from the housing will break something. Is there something else attaching the lens to the housing? Please help. Thank you.

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Ed
-1984 Mercedes 190D 2.2 5-speed gray market(bought@30,000 miles) (Sold back to original owner@170,000 miles)
-1999 Mercedes E300DT (245,000 miles)
-1999 Mercedes S500 Grand Edition (80,000 miles)