20 Most Recent 2001 BMW 3 Series Questions & Answers

This could come from a variety of places... in no particular order... the "new" CPS is bad (get another one)... The battery is weak or has low voltage (replace battery)... The DME may need an update / DIS CD 30.0 or higher... dealer or good Independent shop can do this) last one to look at is the fuel filter (replace)

What you describe is called "passing mode". The way it works is a switch under the gas pedal. when you press the pedal most all the way to the floor, the shift point changes to right at redline. It leads to very impressive performance when you punch it. Since this shift point is always on, I would suspect the passing mode switch is stuck in the on position.

The starter solenoid is defective, the contact inside the solenoid that energize the starter are burned, remove them and look bet they are heavily pitted, replace the starter.

check lubricnt level and quality

check for problem drive line "U" joints or cv joints

depend where you are. im in london uk its around 50-60 pounds

bit of dirt in abs ring jet wash all wheels to clear the dirt

it comes on automatically when boot is open. check bulb

Table of ContentsSec. 1. P0171Sec. 2. P0174Sec. 3. P0500Sec. 4. P1083 (a BMW-specific DTC Code)SEC. 1--------------------------------------------P0171 OBD-II Trouble CodeTechnical DescriptionSystem Too Lean (Bank 1)Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.SymptomsYou will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.CausesA code P0171 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters may cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak downstream of the MAF sensor.Possible SolutionsPossible solutions include: In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling Inspect all vacuum and PCV hoses, replace if necessary Check for a dirty fuel filter and proper fuel pressure-------------------------------------------Sec. 2-------------------------------------------P0174 OBD-II Trouble CodeTechnical DescriptionSystem Too Lean (Bank 2)Basically this means that an oxygen sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 2 is generally the side of the engine that doesn't have cylinder #1.Note: This DTC is very similar to P0171, and in fact your vehicle may show both codes at the same time.SymptomsYou will more than likely not notice any drivability problems, although there may be symptoms such as a lack of power, detonation (spark knock), and/or a hesitation/surge on acceleration.CausesA code P0174 may mean that one or more of the following has happened: The MAF (Mass Air Flow) Sensor is dirty or faulty. Note: The use of "oiled" air filters can cause the MAF to become dirty if the filter is over-oiled. There is also an issue with some vehicles where the MAF sensors leak the silicone potting material used to protect the circuitry. There could be a vacuum leak downstream of the MAF sensor.Possible SolutionsPossible solutions include: In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling Inspect all vacuum and PCV hoses, replace if necessary Check for a dirty fuel filter and proper fuel pressure-------------------------------------------Sec. 3-------------------------------------------P0500 OBD-II Trouble CodeTechnical DescriptionVehicle Speed Sensor MalfunctionBasically this means that the vehicle's speed as read by the Vehicle Speed Sensor (VSS) is not working properly.SymptomsSymptoms of a P0500 DTC may include: loss of anti-lock brakes the "anti-lock" or "brake" warning lamps on the dash may be lit the speedometer or odometer may not work properly (or at all) your vehicle's RPM limiter may be decreased the shifting of an automatic transmission may become erratic other symptoms may also be presentCausesA code P0500 may mean that one or more of the following has happened: The Vehicle Speed Sensor (VSS) is not reading (functioning) properly There is a broken/frayed wire leading to the vehicle speed sensor The vehicle's PCM is not correctly configured for the actual tire size on the vehiclePossible SolutionsThe simplest thing to do is to reset the code and see if it comes back.Next, check all wiring and connectors that lead to the speed sensor. The location of the sensor depends on your vehicle. The sensor could be on the rear axle, transmission, or perhaps the wheel hub (brake) assembly.If the wiring and connectors are OK, then check the voltage at the speed sensor. Again, the exact procedure wil depend on your make and model of vehicle.If everything looks OK, replace the sensor.--------------------------------------------------Sec. 4 - the BMW-specific code---------------------------------------------------P1083 Fuel Control Mixture Lean (Bank 1 Sensor 1)

Not typically. If t he tire came apart and hit wiring or something related to the engine management system it is possible. Not likely but possible.

hello dschlig, most common for these seats are the motors. I would recommend raising the seat as high as possible. While trying to activate the seat in the forward/back positions, see if you hear or feel a clicking in the motor under the seat. The motor can be recognized closest to the carpet, and has 2 rods going to each seat track. If the motor clicks, inspect the connector and make sure nothing dislodged it. If it is ok, you can use a small hammer and an extension and lightly tap the motor to see if it will maybe release. If you know how to use a volt-meter, you can also check for power to the motor connector when sliding the switch in either direction. The motor can be replaced seperately.

Firstly test with another battery, sometimes an old battery cannot supply enough current even when the voltage level looks okay. then, Check for full voltage at the starter. Check starter solenoid for freedom of travel.

have you taken the house off to see if there is any blockage?

i see answers to other questions here except the question asked about no heat in a 325 xi 2001 blower works great fluid is full no leaks,fuses are fine,get a lil heat while at a stand still but as soon as you drive cold air only temp on max 91, engine temp right in the middle takes about 8 mins for temp gauge to reach the middle can anyone help with this..PLEASE !!!!!!

To turn off the traction control, you need to press and hold the traction control button. Normally this is located on the centre console above the gearstick and you should have one of the following;

ASC or ASC +T
DSC
finally a button with an exclamation inside a triangle with an arrow on the outside in a clockwise direction. You'll have one of these 4 buttons.

Simply pressing it once will partially turn it off - (depending if its dsc, if not dsc but asc then the system will be turned off)

If you press and hold however, the system will be fully turned off and a warning light will appear on the dash. Again this all depends on the system you have and if you need to press and hold until the light comes on the instrument cluster,or just to press once!

Hope this helps!