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BMW 525i Questions

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it is a two piece driveshaft
P0171, P0174, P0300, P1083,P1085
P0313, P1342, P1344, P1346, P1348, P1350,P1352 . . . I am getting rough idling and sluggish performance. My research tells me it may be the Intake Manifold Runner Valve/Adjuster Unit or Idle Control valve or Mass Air flow Sensor or Cam Shaft Position Sensor or Vacuum Leak or Oxygen Sensor. Or it may need a good Tuneup. The car lacks acceleration. The rough idling with sometimes engine shutoff occurs mostly in the idle position.

Hope this helps!

Thanks.

the car is a 1989. Not a 1990
I have a 2002 525 wagon. It has 95K miles. the check engine oil light comes on every 2 to 3 weeks, at which time I have to add a quart of oil. Is this normal or am I heading toward a small fortune fix? I am just about at wits end with all this spending and want out if this is the case. Please help. mechanic says this is normal for high milage beamers. Thoughts???
How do I get it out of security mode??

Car starts and runs find buy hot wiring it - jumpping off at the starter???
This happens mostly when I'm at a red light and go into 1st gear. I have 81k on the car.

Is this a clutch or transmission problem? Some internet bloggers say it's the bushings in the tranny, and some say it's the fork? All the other gears are fine.
i've looked everywhere. My transmission is slipping. I need an answer like yesterday.
The central locking systems is working but I've noticed that when I unlock the doors with the key the interior lights don't come on until I open the door. Any suggestions.
my car acts like it wants to turn over but doesnt i was told to go bang the startwer to see if it helps what do i do
if its a wiring problem what could it be.if it's the alternator how easy would that be for me to replace?Thank you.
I had the tires rotated and balanced and now when driving after hitting 60+MPHs and slowing down the wheels shake and shutter.
Bought car used in 2009. I was given the 5 digit radio code and it has worked before. Never had the security code. Is this something I can get from a dealer? Security Led flashes and code led is lit on the radio. Code is also on the display.
I drained it off and it still smoke can I let the car run until it clear out because I no that its on the spark plugs. HELP!
heater only works in on defrost, only vent cabin doesnt work. all the lights come on but blower motor doesnt run. what can i do
Does anyone have installation instructions for a DSC control unit?
Thanks
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