Question about BMW 323i

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My car is BMW 323i 2010 yr model When this eng' started to warm about 20-30minutesgt During that time, A/C is cool(set temp: 16 deg') After that This A/c isn't cool(hot blower)

Next, I showered the Eng' with water, A/C is good(cool) Now, I reset temp' to 20 deg'.... Cooling is good---- running time is about 20-25minutes What happened this car ?

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  • Expert
  • 51 Answers

Check cooling fan

Posted on Jan 19, 2017

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6ya6ya
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Posted on Jan 02, 2017

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centralvalle
  • 386 Answers

SOURCE: ENG. RUNS HOT IN STOPPED TRAFFIC

Check your coolant temp sender, it sounds like you have a bad temp switch in front of the relay...

Posted on Sep 27, 2009

  • 34 Answers

SOURCE: 1998 Chrysler Concorde LXI V6 3.2 eng No heat with

your heater core is plugged...bad for you this is expensive!!! or or your motors thermostat is not working..good for you.. as this is a cheap fix

Posted on Feb 26, 2010

  • 38 Answers

SOURCE: 1991 daihatsu applause super selection eng-HD-E1

let the car get up to operating temp and squeez the top radiator hose, if you feel the coolant squeeze out into the motor you thermostat is fine, but if you feel the hose and it feels presurized you need a thermostat. Also check to make sure the fan is operating at operating temp because that would cause overheating. ALL vehicles require the cooling system to be bled. Some have a bleeder screw (usually near the thermostat ) if not fill the radiator and keep toping it off at the coolant tank.

Posted on Apr 28, 2010

Molson02536
  • 3854 Answers

SOURCE: eng. code P1484

P1484 - Cooling Fan System Performance

06-06-2005, 10:51 PMHere's what the GM Manual says about this code:

The cooling fan relay sends a pulse width modulation (PWM) signal of 12-14 volts to the cooling fan clutch through the cooling fan clutch supply voltage circuit. The powertrain control module (PCM) uses this PWM signal in order to control the speed of the cooling fan clutch. The signal controls the position of the oil control valve inside the cooling fan clutch. If the cooling fan RPM is different than the PCM is expecting, DTC P1484 will set. The actual cooling fan RPM vs the desired cooling fan RPM is not always exactly the same. There can be up to an 800-RPM difference.

The engine is running.
The system voltage is greater than 8.5 volts.
The intake air temperature (IAT) is greater than -7°C (19°F).
DTCs P1481 and P1482 are not set.
The engine speed is less than 3200 RPM.
The engine speed is not changing more than 250 RPM for 5 seconds.
Fan command is greater than 0%.


The maximum allowable error of 1000 RPM in the cooling fan speed occurs for 100 seconds.
The PCM detects that the cooling fan clutch is locked up.


The Reduced Engine Power indicator illuminates only if the PCM detects that the cooling fan clutch is locked up.
The PCM illuminates the malfunction indicator lamp (MIL) during the second consecutive trip in which the diagnostic test has been run and failed.
The PCM will store the conditions as Freeze Frame/Failure Records data.
The PCM commands the cooling fan clutch to 100%.

Important
Follow this procedure in order to clear DTC P1484 after completing a repair.



Use the Clear DTC Information function on the scan tool.
Perform an ignition key cycle.
The PCM turns OFF the MIL after the third consecutive trip that the diagnostic test has run and passed.

The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.

An inline connector could cause an intermittent DTC. Ensure to test for poor connections and pin retention at all inline connectors. Refer to system schematics for connector and locations.
If the condition is not present, refer to Testing for Intermittent and Poor Connections in Wiring Systems.

Disconnect the harness connector of the cooling fan clutch from the shroud. Inspect the exposed wires between the harness connector and the tubing.
If DTCs P1484 and P0113 are set, and the weather conditions are cold, the cooling fan code may be false. Clear DTC P1484, and after an IAT sensor check, allow the DTC to reset .

I'd say that 'fan clutch is faulty' is your problem, based on the information you gave. Thank you for using Fixya and good luck

Posted on Jul 10, 2010

traceylewis1
  • 363 Answers

SOURCE: 1989 SUNDANCE 2.2 WILL NOT STAY RUNING WHEN TEMP.

Just a shot in the dark, But did you or some one else remove the thermostate?
If so put a new one in this will let the car run fine in the summer but cold weather the car cant get warmed up.

Posted on Nov 28, 2010

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