2006 bmw 330i

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

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Hello again Sondra
Simon Atkinson and I both answered your query and we both mention parasitic battery drain. None of us mentioned a 'battery reset' and as far as I am concerned, I have never heard of anything like that. A battery is an inert box of lead and acid that holds a charge that you put into it. The engine control module monitors it and BMW being who they are DO in fact have a BATTERY RESET procedure!!

https://www.google.com/search?q=2006+bmw+330i+battery+reset


Also, if you disconnect the battery for even a short length of time, you will need to reset the security system and immobilizer.

https://www.google.com/search?q=2006+bmw+330i+reset+security+system

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Fuse Box Diagram BMW

https://fuse-box.info > Home > BMW
Fuse box diagram (location and assignment of electrical fuses and relays) for BMW 3-Series E46 (316i, 318i, 318d, 320i, 320d, 323i, 325i, 328i, 330i, ...

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  Fuse Box Diagram BMW 3-Series (F30/F31/F34; 2012-2018)

  https://fuse-box.info > bmw > bmw-3-series-f30-f31-f3...
  Fuse box diagram (location and assignment of electrical fuses and relays) for BMW 3-Series (F30/F31/F34) (316i, 318i, 320i, 328i, 330i, 335i, 340i, 316d, ...

In fuse box

http://kipipo.com/2006-bmw-330i-fuse-box-diagram.html

You may be having problems with the crankcase pressure regulating valve (PCV). If this is clogged or malfunctioning, pressure can build up inside the engine and blow oil out the filler tube.

On this website you find fuse box diagram and description

https://www.autogenius.info/bmw-3-series-e46-1998-2006-fuse-box-diagram

P1554 in bmw 330i means Engine Position System 'A' Performance (Bank 1)

There are various diagrams for your car. The link below will take you to a page that has all the diagrams. Best of luck.
Greg

BMW 330i Belts

2004 BMW 330i Car Radio Wire Diagram
Car Radio Battery Constant 12v+ Wire: Red/White
Car Radio Accessory Switched 12v+ Wire: Violet/White
Car Radio Ground Wire: Brown
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: White
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Yellow/Red
Left Front Speaker Negative Wire (-): Brown/Orange
Right Front Speaker Positive Wire (+): Black/Red
Right Front Speaker Negative Wire (-): Brown/Orange
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Yellow/Black
Left Rear Speaker Negative Wire (-): Black/Orange
Right Rear Speaker Positive Wire (+): Blue/Black
Right Rear Speaker Negative Wire (-): Black/Orange

pls rate