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P0420 Bank 1 and P0430 Bank 2 check engine light on a 2004 bmw X3

Check engine light came on at the same time for a BMW 2004 X3 2.5L

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6 Suggested Answers

6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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bmw_tech_38
  • 113 Answers

SOURCE: lost keys require new locks for BMW X3

replacing the complete lock set with the EWS control unit can be expensive as the control unit will also need to be programed and/or encoded, however if the lost keys cannot be found and you are sure they cannot be used to steel you car you can just order replacement keys from your local bmw dealer. hope this is of some help. You will also nead to disable the lost keys if you order replacements rather than a complete set.

Posted on Jan 19, 2009

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SOURCE: BMW 320i is using 5L of oil every 1000miles no

Try using an automotive dye in the oil the oil has to be going somewhere the dye should reveal the loose gasket or loose oil plug in which the leak may only occur at speed under pressure and not present when stopped

Posted on Aug 23, 2009

  • 23 Answers

SOURCE: bmw 320d engine shaking

You have blown the oil rings.

Posted on Aug 29, 2009

  • 2841 Answers

SOURCE: check engine light bmw 325i code 340

Code PO340 "Camshaft Position Sensor Circuit Malfunction". Now that does not mean that if you simply replace the sensor your problem will be solved. It can be simply loose, cut, or corroded wiring. It can also be something entirely different. This is where diagnostic skills come in.

Posted on May 01, 2010

ZJLimited
  • 17970 Answers

SOURCE: I HAVE A BMW X3

zjlimited_837.jpg

DTC P3242
Fault location: Cooling thermostat control circuit - signal high
Probable cause: Wiring, cooling thermostat

Where is your coolant temp. gauge reading at operating temperature? Does it look normal? Is your answer is YES, the only thing between the DME (Digital Motor Electronics) module and the fuse is the Characteristic Map Cooling Thermostat. This code was probably a faulty thermostat electrical resistance (think at changed a new thermostat housing and the heating element).

If you had a problem with the module or the fuse, it would throw a different code. But, it knows it's there and operating, just operating incorrectly. This leads right to the electrically heated thermostat.

I'd say go ahead and change the thermostat. Just make sure you get the whole assembly including the heated probe and everything. I'm not sure how they sell it and if it makes you feel any better, I'm basing all this on the other BMW user with this wrong.

Keep us updated.

Posted on Mar 09, 2011

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