And FYI - bulbs don't control flash speed - the relay mentioned above does. The energizing contact is probably not making it all the way back to the "home" position before it's energized again - or the timing part of circuit (in the relay) could be going south.

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A.S.E Tech A1,A6,A7,A8 & MVAC 609 + EPA 608

Unless stated otherwise, any question I ask is about my greymarket 1985 380SEL.