20 Most Recent 2001 BMW 330 Questions & Answers

First suggestion, ensure the AC is properly charged... the AC system is very picky... so check belts pulleys and AC charge first... if the AC is healthy and this issue is still present... you have two possible solutions...1. heater control box in dash behind the radio...Expensive part $450+ and lots of labor to pull dash apart... or 2. the heater control valve in the engine bay... $130 part you can do IF you take your time

wether it's worth the cost of repair is something only you can decide, what is the mileage and condition of vehicle ? have you had the OBD codes read to see if there is a code to help with diagnosing the problem ?

Thermal issue is shutting down amps till temps moderate. You must be driving your system too hard. And check out your tone control settings especially the bass. Every 3 db boost forces amp to double power at that frequency so if you are already blasting at 100 watts, a 3 db boost will compel amp to put out 200 watts, etc. Very easy to overdrive and overheat amp. You might want to try blowing air over output stages to improve cooling at high volume levels. You are lucky that you have good protection circuits - otherwise by now you would have blown the output stages.

Sound like you have no boost. Turbo or actuator faulty

You can replace the old radio and cassette player with a new modern aftermarket dvd player gps navigation unit like this. Car DVD BMW E46 Navigation System E46 DVD GPS Navi It's with more features except navigation system, USB, iPod, AUX, SD, DVD player, rear view camera video input, and it's touch screen, easy operation.

you must ensure fuel pressure and spark first

there should be 2 lines on the dipstick one near the bottom and one about an inch above it. the bottom line is the minimum level and the upper is the max level.

This is a sealed unit and non servicable. chheck with auto trans. dealer for the cheapest option.

Try being more sensitive.

I'm having the same problem have you fixed yours?