Will your diesel go to red line?
 

Regardless of which mode I am in - auto, sport, or manual - the transmission upshifts at ~4,500 RPM under full throttle, well short of the 5,000 RPM red line. Although it is above the power peak, with so few revs to start with, it would be nice to be able to use them all.

Anybody else experience this?

I have tried 2 times, and No...mine will not go to the red line. Auto, sport or "manual". BMW engineers obviously do not want this to happen. Total different story in our M6...it seems there is no redline in that car :) Wow!!

That's a diesel, for you. If you want revs, buy a petrol engine or mod your diesel, not that I am recommending either.

Is it possible that there is a lag between the analog tachometer on the dash and the actual engine RPM? Perhaps the engine is getting to redline 5000rpm and shifting before the tach shows redline.

Mine won't do it either. I've tried several times.

Ugh, seriously man? Let it go...

And what's you point?

Should be able to tell...
Obviously, people aren't looking for revs when they get a diesel. Still no problem in seeing why whatever car you have won't go to the indicated redline.

I'd suggest that it's because the power drops off very quickly after 4400rpm and there's no point in running all the way to 5000rpm.

See the attached power and torque graph (note this is for an Australian spec model and I understand that the US-spec is even more softly tuned).

I think my dad's will go to near the redline under kickdown (up to about 4800rpm) which is annoying because it's probably slower when it does so. There's little point going past 4k in a diesel even when in a hurry.