2001 BMW 325 - Answered Questions & Fixed issues

Sounds like a fuel problem , have you changed the fuel filter in a while ? could be the knock sensor or the knock sensor module needs to be replaced.

On this website you find fuse box diagram and description for BMW 3 series (1998 - 2006) https://www.autogenius.info/bmw-3-series-e46-1998-2006-fuse-box-diagram

Probably not the filter, the Fuel Pump is located under the Back Seat.

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Could be a few things the vanos timing chain or the guides or your water pump

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The computer needs 12V in order to start.

bad door switch maybe?

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have you checked the fuse and also the relay.

I think you have a defective wheel bearing.

It's very unlikely that changing the spark plugs would cause the fault you describe. In fact I can't see how it could. Your car may not be using more fuel - it may be that the fuel gauge is giving a false reading of what is in the tank. I would suspect the fuel sender unit - it's in the fuel tank. The unit is electrically operated via a rheostat - as the float level moves up and down according to the level of fuel in the tank it alters the current - which gives a reading as your fuel gauge. You should be able to see the electrical connectors of the sender unit on the top of the tank (you may have to remove the rear seat or a panel inside the car - above the tank). Check the wires for cleanliness and security. If the problem persists ask a workshop for a second opinion. It's not a difficult job changing a sender unit, though I don't know how much one would cost for your vehicle.

Fixya does not sell parts. Contact a dealership or a parts store near you for a price

there are 2 fuses. Numbers 28 & 50 are assigned to the blower..

One is the oxygen sensor, the other is the catalytic converter performance monitor. They are referred to as the upstream and downstream sensors.

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No it will not tilt.

there should be 2 metal rods , one pulls one push's , open and close , i would try spraying some lubricatant , wd40 , into the lock mechanism to see if that will free off the connections for these rods and just try to gently push and pull until get some movement , have you tried to open door with the key in the door lock and turned to open at the same time as pulling on handle ,hope this is of some help

Could be the wiper switch ?

You must replace the window regulator assembly inside the door.