On my 98 E300D, there's the lid to the washer reservoir that you open to put in fluid. But that lid in turn is connected to a larger plastic piece, a larger lid, through which the heating tubes go. That larger piece won't connect securely to the reservoir....it keeps wanting to lift up. Any ideas as to how I can get it to stay in place? I could use some sort of epoxy, of course, but that seems unnecessarily permanent.

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14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 154k miles
06 E320 CDI "Rutherford", Black on Tan, 172k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 142k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 61k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife