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323i

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Question
Engine Computer Issues (spark plugs & coils were changed 5 months ago as well).
Do you have ANY aftermarket electrical equipment in the car? Such components can impact the function of the PCM. Also, check the alternator output and stability. If the power supply to the PCM is not within specification, that could damage...
Question
Q: Misfiring
This is often times related to what is called an idle air control valve which controls the air/fuel mixture at idle speed. When this is not working properly, this can cause the car to run either too rich (too much...
Question
Stiff power steering after being hit in the front tire.
Hello there, many faults will cause the power steering on your 1999 BMW 323i to become stiff after getting hit on the front tire. The most likely would be damage to the power steering rack from the impact to the...
Question
Judder/lag when accelerating
This could potentially be due to a faulty mass air flow sensor. This is a component that regulates the air coming into the intake system as it is mixed with the fuel prior to being injected into the motor. When...
Question
Is lucas oil stabilizer ok to use in a 99 bmw 323i, if not what makes it bad to use?
Hello. BMW doesn't recommend using oil additives. I don't know exactly whether Lucas Oil Stabilizer works well, but if you are using a good quality oil with an SJ rating or better, there is not anything that an additive is...
Question
EML light on and caution light with arrow around came on the car, what should I do?
The warning lights mean that the vehicle's computer has detected a fault in the engine management system and/or engine controls which includes a lot of sensors and other devices. If the vehicle has not entered "limp mode" (reduced performance), is...
Question
Traction control light is on, 2000 BMW
As you know, your car is equipped with wheel speed sensors at each of the four wheels which monitor wheel speed while relaying this information constantly to the ABS and traction control system which are controlled by the car's ECU....
Question
P1510 trouble code is showing up. Cleaned the idle control valve but it won't start.
The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine. This valve is controlled by the vehicle's computer which will adjust idle speed based upon other measurements such...
Question
Car will not start. No turning of the motor but lights come on. It will randomly start sometimes. ATF or coolant is leaking
If you have a voltmeter and can reach the starter, you can test for activation voltage at the solenoid. If you have at least ten volts on terminal 50 when the key is turned, then you will probably need a...
Question
Speedometer and gas gauge not working
This may be related to a short or a faulty instrument cluster voltage regulator. The instrument voltage regulator regulates the voltage supplied to the various gauges in your vehicle’s dash. When this is not working properly, this may cause the...
Question
Gear locked and car not starting
Hi there. There is an issue with the shifter interlock lock solenoid in the shifter housing. The solenoid has lost power or it has been shorted out. Remove the carpeting and get to the shifter housing and remove it from...
Question
Oil leaking into spark plugs galley, car won't start
If you found oil has entered the spark plug tube galley then the oil may have shorted out all the coils and plug wires causing the engine no start. The oil is getting in the galley from a leaking valve...
Question
Car is shaking at 60 MPH 60
Control arms and control arm bushings are a very common failure on your car. If there is even a slight imbalance in the tires and wheels, the effect will be greatly amplified by any looseness in the front suspension.The control...
Question
I have a damaged hood, radiator support and headlight
Hello, thank you for writing in. The hood should technically fit. Some replacement hoods for the 1999 say they will not fit the 2000 model, but they should be the same. The first thing you want to do is look...
Question
The undercarriage plastic that keeps the bottom of the car protected has lowered(the front end dragging)
Hello. If you had jammed the broom under the vehicle then it more than likely warped the plate. When this occurs in some cases the cover can be removed and then straightened and reinstalled. Most of the time though once...
Question
Replaced the 02 sensor on my E46 and cel came on again with p1189 code again
Hi there. The problem with BMW-specific OBD-II codes is that they are unbelievably vague, In this case, the P1189 code indicates a fuel control fault detected from Bank 2 sensor 1. This does not automatically mean the O2 sensor is...
Question
What would cause the MPG gauge to fluctuate on a 1999 BMW 323i?
Hello, thank you for writing in. There are several different systems that interact with the fuel system which effect fuel economy. The first that you will want to check is the ignition system. Make sure your spark plugs are new...
Question
The eml light turned on and then the car decelerated. Just wanted to know what it means and if I require a mechanic
EML refers to the electronic throttle control system. It's a system integrated into the engine and body controllers to select the proper the throttle position for whatever the driver is demanding. There are several sensors and actuators in play and...
Question
Car just spins over but wont crank 1999 BMW 323i
Hello - your failure scenario description suggests a blown headgasket, especially with a history of overheating. I would have the compression checked first, and suspect it will be low on most cylinders. It is also possible that the timing belt...
Question
1999 BMW 323i wont go in reverse it will drive but just not back up. Sometimes when run awhile it tries to go back when put in rev
The first order of business will be to read the stored codes in the transmission controller. A generic scan tool like the use at the auto parts stores and tire shops will not do the trick in this case. It...

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