Yup, that's the one that came apart on mine. The strips coming apart leads to poor connection, which leads to overheating and - eventually - melting of the plastic surround. From there on, it's impossible to get things right permanently unless you just replace the whole lamp assembly.

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08 W251 R350
97 W210 E320
91 W124 300E
86 W126 560SEL
85 W126 380SE Silver
85 W126 380SE Cranberry
79 W123 250
78 W123 280E
75 W114 280