I hope you didn't expect Bosch quality at the knock-off price. I did the same, got a look-alike that had dimensional problems where the lamp socket was held. For $15/pair, that was no surprise. Its only a matter of time until they go into the trash and get replaced with real OEM clears. Either way, you are still going to have to put the 3 wire connecter into whatever unit you end up with. Euro were turn signal only on both my 86 and 87. Minor rewiring was required to keep everyting working. Same for my SL of that era.

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Hanno
'79 6.9 Sold (after 27 years)
'83 280SL, 5 spd.
'94 E320 Sdn. 5 spd conversion
'02 E320 Sdn.(on loan to mom!)
'87 300E (5 spd. conversion) Sold
'05 E500 Wagon