Top 20 1994 BMW 3 Series Questions & Answers

check that the cabin filter is not blocked https://www.youtube.com/watch?v=UjSnUgC4cWI

Visit the on-line store, known as reliable-store, they have the repair manuals. I'm sure you will get the solution of your problem. 1994 BMW 3 Series

BMW CAR STEREO CODES https://www.carstereocode.com/unlock.php?mk=6

Reboot it

Your vehicle did not come with a manual [driver controlled] deactivation switch. The passenger side airbag on this car is controlled by a switch built into the bottom seat cushion of the passenger seat. If you place an object heavy enough on the passenger seat to activate that switch, the airbag will be activated. If it is activated when the seat is empty, then the switch inside the seat bottom is either defective or someone has disconnected it. Look under the passenger side seat for an electrical connector which may be unplugged.

By "dipped" headlamps, do you mean the "low" beam headlamps? If so, the dimmer switch [located on the turn signal stalk] may be bad. Have you checked for power to the low beam wires at the headlamp electrical sockets? BMWs, unlike most cars, do have fuses for the headlamps, so yes, it is possible that those fuses have blown.

This could be most anything without more information. I would suggest having the codes ran by a qualified BMW repair shop. It could be a simple as a vacuum leak or torn intake boot, a bad sensor, or bad coil. Or it could be a clogged catalytic converter, slipping transmission, ECU issue, or a burnt valve. You did not say if there were any check engine lights on or even if it was a 318 or a 325. Information is key when working on a BMW or any other later model car. Get it scanned. EuroPartsPlus.com

check antenna.

sounds like a car alarm is fitted

You must use a special tool which bolts onto the cylinder head. It is designed to hold the camshafts in the proper position. It goes over the flats on the camshafts to hold the camshafts in the correct position. This tool can be rented. Look on EBay or check with your local Snap On Tools, Mac Tools, or Matco Tools dealers to rent one. See the link below for photos of properly aligned timing marks for your engine. 1994 BMW M42 timing chain alignment marks Google Search

The M42 and M46 engines have the twin vanos pulleys and require locking tools to lock the crank and cam shafts inot the correct position. There are no timing marks on these as they are floating pulleys- ie they have no key locating the pulley in a specific position on the cam. Unless you make accurate marks during stripping there is very little chance you will be able to get the cam timing right on this engine without the cam locking tool kit.

Making SURE you turn it in the direction it turns when the engine is running, rotate the cam until the timing marks align. (Use a wrench on one of the bolts that hold the gear on for leverage. The belt or chain must be off when you do this.)

You don't say if its front or rear? The rear is through the back corner of the boot/trunk, you may have to remove some trim. The bulb holder is a twist and remove type and be careful to line up the tags on replacement. Front is similar and requires access to the inner wing, this may mean removing some other items to gain access.

I have just a couple ideas/links for you to follow through on. http://content.yudu.com/Library/A1pyv7/BMWE395seriesService/resources/476.htm In general the problem will most likely be found in F31 in the diagram from the link just above if that applies to your vehicle or as the video shows it may be a heat related break down from a faulty relay. I don't recall on yours but often many vehicle relays are interchangeable. Try swapping with an identically marked relay to see if the problem goes away. If not and if both involved fuses are good then it is a toughy.

1. the car drain's the battery even when it is not started or the key isn't in ignicion, the car has a electrical problem, you left a light, the starter could drain it, the alternator as well, or a bad radio is draining the battery even with no key in the ignicion, 2 it's a bad battery (discharges it self by beeing counicated inside). solucion 1. to see if the car is drainin the battery would be by disconecting a battery termina and see if discharges again, if not, then the car drain's the battery. solucion 2. if the battery discharges even when if it's disconected from the car, then change the battery. warning, the first cause coul'd induce to a self discharging battery. even if you changed the battery, do a litle monitoring to be sure it's not the car that is turning the battery bad. how? if you install a new battery, leave the car for a few days (i mean do not start the car) and see if the battery discharges, if so, then you have to search what is draining the battery (that could be a very costly work, time and money and complicated). or put a ''battery disconector'' so the car cannot discharge the battery.

bad connection or bad ground for fan or fan going bad or blocked air flow for fan causing high rev on fan

Check brake switch at brake paddle

check fab belt

moisture in the fuel will make it run rough. the starter solenoid is stuck. whack it with the handle of a screwdriver. if that didn't do the trick, replace the starter.

change handle with a 2nd hand one from any scrappes