Top 20 2004 BMW 330xi Questions & Answers

How many miles has the vehicle covered since new?

Sounds like you may have some ignition/O2 sensor or even cat issues , as these codes range from missfire to lean bank problems how many miles are on it? Whenwas the last tune up performed?

You can find the oil life monitor reset procedure here Oil Change Light Reset BMW 330xi 2001 2002 2003 2004 2005 Reset Your Oil...

The transponder is not effective any longer sometimes the battery of the remote is very low which needs to be replaced

probably on google.

Could you post the actual codes please?

Question edited for clarity and spelling. https://www.google.com/search?q=bmw+e36+convertible+roof+not+working ..

If you have a multimeter remove and test the fuses for continuity (OHMS) as fuses can look OK but they have blown. If your replacing fuses ONLY replace the with one of the Same colour and Amp rating.

Yes, Bimmerfest Forums are a great resource. https://www.google.com/search?q=BMW+325ci+vacuum+hose+diagram ..

Question edited for clarity. changed your Poly Vinyl Chloride (PVC) into Positive Crankcase Ventilation (PCV), and added some punctuation to make real sentences. Your car is run by computers, the computers have diagnostics and will tell you what's wrong. You can't guess faults like you have. A Professional Grade Scan Tool computer can diagnose all the computers, modules, sensors and systems in about 40 minutes. It can even record what happens and what goes wrong as you are driving! https://www.google.com/search?q=mobile+auto+electrician+near+me ..

https://fuse-box.info/bmw/bmw-3-series-e90-e91-e92-e93-2005-2013-fuses-and-relay

https://cararac.com/blog/bmw-no-crank-no-start-problems-and-solutions.html This will give you a few ideas of what to look for. Make sure you are getting battery voltage to the fuse box.

To turn off HDC on a BMW, all you have to do is press the HDC button located on the center console. The button will have an image of a vehicle going downhill with a speedometer above it, and you'll know it's off if there are no lights illuminated above it. If you ever want to turn the system on again, just press the button again.

6 years different and a different series? If only life was that easy! Some BMW have a mechanical pump driven by the serpentine belt, and some have an totally electric powered pump. Just buy one for the model you have. https://www.google.com/search?q=2012+BMW+535i+water+pump or https://www.google.com/search?q=2006+BMW+330i+water+pump Rock Auto are a good suppliers, have images and different makers and 'qualities'. https://www.rockauto.com/en/catalog/bmw,2006,330i,3.0l+l6,1431850,cooling+system,water+pump,2208 ..

Check the basics first. Is battery fully charged? This is the most common reason for a no crank, no start. What exactly does it do when you turn the key? Nothing at all, no lights, no 'click' as you turn the key. A slow lazy crank?

try this link https://fuse-box.info/bmw/bmw-3-series-e90-e91-e92-e93-2005-2013-fuses-and-relay

torx screws? buy the set. with e-sockets https://www.homedepot.com/s/torx%20bit%20set%20with%20e-socket?NCNI-5

linkage bad or PRNDL switch failure. the service manual covers this, get i?

no year car told at all. using voltmeter what is battery voltage at idle.? not told' 13. to 15vdc is par, if below the alternator is dead or its fuses blown. if ALT is dead, driving the car , far (30min) will make engine stall and be dead,until battery is jump started or charged. that lamp comes of a reason, it means fully load test the battery and test the alternator correctly check all fuses scan the OBd2 port with a scan tool for charge system errors. If the battery is bad,the alternator can in fact refuse to charge it. intermittent battery cell shorts or opens can do that. batteries over 7 years are , love to fail. "it turned on after oil leaked flashy/, " i am not sure what flashy means. DId the PS pump fail and leak and squirt PS fluid to some electronics under the hood, that can be vary bad, if did. be more clear on PS leaks, leaked to where. ? matters