Top 20 2000 BMW 3 Series - Page 2 Questions & Answers

You can change the key battery. BMW 3- Series Battery KEY Replacement & Re-Program KEY - YouTube

Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. Check for air leaks on or around any intake pipework using a good spraying of carb cleaner, if the engine surges then that's the leak. Check wiring to Maf and if the inside is dirty, again use carb cleaner liberally...NOTE: do not use Wd40... If the code comes back, it may be necessary to replaced the mass air flow sensor.

check all connector pluged in

erm, maybe best to keep it off the wheels but it could be the master servo not pushing the fluid to all 4 corners or a blockage in the brake lines

is i petrol or diesel

The sensor is probably bad. Shorted out,m replace it and the light should go off. Sometimes the lights just start coming on for no reason in older cars. I have a 2002 impala that the engine light stays on but, there's nothing wrong with the engine.

https://www.youtube.com/watch?v=B3PQrr-YcLI BMW 3 Series Key Fob Battery Replacement How To e46 e39

Can be possible but I would check fuse and relay and make sure that you have power supply.

yes

The airbag is removed by 4 torx screws from the back side. Disconnect the battery before removing the airbag or the airbag light will stay on and you will have to pay the dealer a bunch of money to reset it. Don't reconnect the battery until the airbag is replaces and the electrical connection is in place. Once the airbag is off, there is a 22 mm nut that holds the wheel on. After you take the nut off mark the shaft and wheel with a grease pencil so you know exactly how to put it back on or you will be driving crooked later. Then the wheel just slips of with a tug.

It will need to be scanned by a shop. Most common problem is the passenger occupancy seat mat.

sensor from one of the doors latch or the door latch itself.

threr is a traction control button. switch it off

get the compression test done to see the condition of your head gasket

P1119 - OXYGEN SENSOR HEATING 2 AHEAD OF CATALYTIC CONVERTER absolute heat temperature in exhaust- high inlet signal. the perpetrators could be a lot of things, but the exaust is too hot for some reason.

open it and clean it as its build up to a point where is blocked with carbon use brake cleaner.

seriously?

check for split hose or faulty fitting . check for connection cracked at cooler inlet/outlet

Usually indicates a bad catalytic converter. Make sure you're sitting down when you get a quote for a new one.

fuel is burning