Was putting in the tranny in my 190 16v and the vent cap popped off. Thought I could snap it back in but the prongs that hold it in place broke off in the vent hole. Pulled them out with a needle nose but need to source a new cap. Would have liked to finish today. Put the tranny in and linkage and everything i could while leaving access to the vent location. Not much room to work with as the 5 speed is big (and Heavy). any suggestions would be appreciated or I will wait and order a new one. Will look at Napa and other generic car parts as any vent might work.
Thanks in advance

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63 190d (sold)
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2013 GLK 250 Bluetek 4MATIC