"1. Will all the other lights (if they were LED's) cause a problem with the BFS?
I don't see why it would."

I really think there'd be no problem. BFWR tests load of one side of car vs. the other side. Per each circuit, not per everything that's lit, as you're probably aware. So if you have two equal-draw devices, one on each side of the circuit, the BFWR should be happy.


"2. Will the LED's trigger the Flasher so the directionals work?
I don't remember ever seeing the typical Bi Metal directional in the Volvo so I thought if it was controlled some other way, the LED's would be a Drop in."

I don't know. I never opened up a 240 flasher relay - but I suppose if you do, you'll either find a recognizable bimetallic strip or some circuitry based on capacitors.

Also: Flasher relay apparently is sensitive to load. As in, if you remove the front turn signal bulb, it flashes very fast with only the rear bulb working. So I do suspect that if you insert low-load LED bulbs, the flasher won't work normally. Only a theory; you'd have to test to know for certain.
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Sven: '89 245 NA, 951 ECU, open-front airbox, E-fan, 205/65-15's, IPD sways, E-Codes, amber front corner reflectors. Wifemobile '89 245 NA stock. 90 244 NA spare, runs.