20 Most Recent 2004 BMW 3 Series Questions & Answers


You can sometimes get lucky and do a brake fluid flush / replace and the codes can be cleared. Otherwise you will need to replace the two pressure sensors on the master brake cylinder... if you pull the error codes it can tell exactly which one has failed. ( i would do both since you are already in there)...REMEMBER buy BMW OEM parts... this is a difficult repair... so put the right parts in to avoid doing it again in 6 months

2004 BMW 3... | Answered on Jan 02, 2018


You’ll have to check amp draw on the starter, it may be bad ornaolenoid has quit. All auto parts stores have a little hand held machine to check this but I’m not sure if they’ll let you borrow it to take it home, if the car can’t make it rob the store.

2004 BMW 3... | Answered on Nov 23, 2017


If u hear the engine cranking in the AM, the batt & alt sound good. If you don't get any engine cranking in the am you may have an electrical short draining the battery. Before u convict the starter u must make sure the battery has full power in the AM. (12V) & 12 V to the starter

2004 BMW 3... | Answered on Apr 10, 2017


It could be a faulty sensor or it could be warning you of a problem the sensor is finding.

2004 BMW 3... | Answered on Mar 28, 2017


push in on the volume knob .

2004 BMW 3... | Answered on Oct 02, 2016


is battery dead
or any thing else

2004 BMW 3... | Answered on Sep 18, 2016


take it to a gaage

2004 BMW 3... | Answered on Sep 18, 2016


dont to it ur self
its lengthey and complecated

2004 BMW 3... | Answered on Sep 18, 2016


take it for a run on high way
high speed, low gear to clear the emmision

2004 BMW 3... | Answered on Sep 18, 2016


engine bay
on cam shaft pulley

2004 BMW 3... | Answered on Sep 18, 2016


service gear box

2004 BMW 3... | Answered on Sep 18, 2016


check battery and tap the starter motor

2004 BMW 3... | Answered on Sep 18, 2016


there is a adjuster on the light headunit

2004 BMW 3... | Answered on Sep 18, 2016


if not working then check fuse

2004 BMW 3... | Answered on Sep 18, 2016


behind cigrette ligher be easiest

2004 BMW 3... | Answered on Sep 18, 2016


The seat pressure sensor. if it's the seat sensor you can find a BMW Airbag Bypass, Seat Occupancy Sensor Mat Emulator on ebay, they are cheap and it works well.

2004 BMW 3... | Answered on Jun 13, 2016


Should be 17 gallons.

2004 BMW 3... | Answered on Mar 06, 2016

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