Couple of issues - ideas, suggestions
I recently purchased a 1999 323i, 5 speed. Sometimes when starting, the starter does not turn over but gives a, for lack of a better description, whooshing sound. Turning the key off and trying again usually starts it. I also notice from time to time when I start the car, I get a burning electrical smell through the heater vents as the heater unit automatically turns on when the car is started. I've also noticed that there seems to be a hiccup in the idle when the car is first started, more noticeable when the car is in neutral and the clutch pedal not depressed. Once warmed up, it appears to be fine.
I'm leaning towards a starter on its' way out, maybe burning a bit on start up, hence the smell.
Any ideas, suggestions or have you experienced this before.