At first it seemed like a cold start issue. First cold day of the year and the 1986 535i (Gretchen) would not start. But after replacing all that could prevent starting on a cold day…still no vroom. New fuel pump and filter did not get it done either. Yes, I have fire, but fuel issue persists.
Meanwhile, timing chain breaks on 1987 535is (Elka). She sits waiting her turn for repairs while I labor to diagnose Gretchen. Fortunately, we have two other vehicles to keep us on the road, but there is no comparison between the ride of a Jeep and that of a bimmer. Looking forward to getting both BMWs back on the road soon!!
Gretchen on left 535i 1986
UPDATE 4/1/14: Reference sensors were the starting issue. Yet, in the diagnostic phase, I replaced fuel filter, pump, plugs, distributor cap and rotor. She is running great!
revse28 