I built a LED type blinker code thingy... Which pins, and how are they numbered??
By under the front cover, you mean under the black plastic cover on the front of the engine??

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All it takes for evil to prevail is for good men to stand by and do nothing.

Too many people tip toe through life, never attempting or doing anything great, hoping to make it safely to death... Bob Proctor

'95 S320 LWB
'87 300SDL
'04 E500 wagon 4matic