IDLE PROBLEMS 328I E46 99

[328I99E46]

328i 99 e46 been to dealer they said everything is fine i did check codes(none) !! idle is about 700 rpm when i change gears from p to n or d idle will jump up and down also when its in idle and i try to close window ( when windows are up ) idle will go up and down too not too much but sometimes i think its close to stall its reallly gettting me pissseeddd !! i have no idea what to do next also i can see when i put my ac on radio high beam it will do the same thing i checked my battery and its 12.5 v and with engine running about 14.6 v with no load and with load is 13.5v i was thinking of maybe voltage regulator what you guys think ?? i dont think its icv and i had vanos unit replaced with newone already is there anything else i can check ?? [Doh]

[epj3]

It sure does sound like the voltage regulator or the alternator itself might be bad. If you can work on the car yourself and it's out of warranty - the voltage regulator should be a fairly simple repair... shouldn't cost more than $70 total. Do your headlights dim a decent amount when putting the windows down?

I think the ignition design of the car - having individual coil's - can also lead to problems.

If you have someone else to do it, if they are truthful it shouldnt take more than 1 labor hour to have the regulator replaced.

[328I99E46]

headlights dim a little bit when i press the switch for windows i think ill go with voltage regulator and change that myself do you know where can i find reulator on the web to my car ??

[wood_e]

I'm pretty sure the regulator is inside of the alt. You'll probably have to buy a whole new alt.

[328I99E46]

HMMMMMMMM NOT A WHOLE ALT JUST VOLTAGE REGULATOR I THINK YOU CAN TAKE IT OUT AND GET JUST THAT PART NEW

[epj3]

I'm pretty sure the regulator is inside of the alt. You'll probably have to buy a whole new alt.
Nope it's replaceable and very easy to replace too.

Not sure where you can get one, check autohausaz.com...they are the best ever.

[wood_e]

Nope it's replaceable and very easy to replace too.

Not sure where you can get one, check autohausaz.com...they are the best ever.

Thanks for correcting me... maybe I should just get a BMW so I'll actually know stuff

[epj3]

and so you get away from fwd.

[wood_e]

yeah, that too...

[328I99E46]

OK HAVE DONE IT TODAY REPLACED VOLTAGE REGULATOR ITS BETTER NOW BUT STILL DROOPS A LITTLE BIT WHEN TURNING ON OR OFF AC WINDOWS ITP I GUESS THATS HOW IT WORKS SOMEHOW I DIDINT SEE IT BEFORE

[epj3]

OK HAVE DONE IT TODAY REPLACED VOLTAGE REGULATOR ITS BETTER NOW BUT STILL DROOPS A LITTLE BIT WHEN TURNING ON OR OFF AC WINDOWS ITP I GUESS THATS HOW IT WORKS SOMEHOW I DIDINT SEE IT BEFORE
It'll drop when turning the a/c on becuase the air compressor turns on and has a mechanical power draw on the motor.

[328I99E46]

ITS BETTER THEN BEFORE ID SAY BUT IF ITS IN PARKING ( P ) AND U STEP ON GAS AND LET IT GO A FEW TIMES ILL DROOP TO 500 RPMS U CAN HEAR WRRRRRR LOL THIS CAR IS KILLING ME SOMETIMES LOL