Top 20 2001 BMW 3 Series Questions & Answers

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.

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.

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)

check lubricnt level and quality

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

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.

it comes on automatically when boot is open. check bulb

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

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?

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

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 !!!!!!

starter or crankshaft take it to auto zone and pull codes that will tell u the problem

go to google and typ it in it will tell you

What is the problem there?

fuel pressure, ignition system,map sensor,throttle position sensor,timing,valves,crank sensor, cam sensor, compression

Hi Xengle, Black smoke shows a rich mixture, in other words too much diesel is being injected into the combustion chamber and not being fully burned. Take the vehicle for a diagnostic scan and have them check if any of the sensors have become defective. If they are all fine you may need to get the injectors serviced and re-calibrated. Regards John

Fixya has no manuals, sorry.

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)

There are very few design flaws in the e46 (window regulators, sunroof guides). You just found one of them. BMW put dissimilar metals in the plug and pins in the tail light, and corrosion results. The ground connection corrodes long before the others. Cleaning it is a temporary fix. Replacing the tail light is a temporary fix. Adding a second ground connection is a permanent fix.
In the ground trace on the back of that tail light, you will find a tab for a spade fitting. Make an extra ground wire about 6" long with a spade fitting on one end and a loop on the other end that fits on one of the bolts that holds the tail light in. Do both tail lights while you are at it.
Actually, this was probably not so much a design flaw but rather a case where the plug and the tail light were made by two different suppliers who did not communicate their material selections to each other.