Question about 2003 BMW 325

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Air Conditioning on BMW 3 Series 2003

Hi, I'm hoping that someone might be able to help me with a problem with the Air conditioning system on my BMW 3 series (320d 2003). Everything works as it should when using the heater (except I can smell a slightly "old" smell). Yet, when I press the Air conditioning button there is no difference in the outflow of the air and the temperature remains the same. On a particularly hot day it seems to blow warm air into the cabin even though the A/C is on. Would changing the micro filter help this problem? I would love a reply with no jargon used as I'm a novice!! Many thanks Dawn

NB: When posting this question I had to select the car model as a 325 as 320d did not show up, however my car is definitely a 320d (sorry for any confusion)

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Change the cabin filter will get rid of the smell however for cold ac you will need to recharge the ac and have a black light test in 5 days or less after it was recharged. then they would spot for a leak in the ac system

Posted on Sep 12, 2008

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SOURCE: Air Conditioning on BMW 3 Series 2003

On this vehicle if the service history is up to date the microfilter would have been changed no more than 15000 miles ago. You may need the help from a garage to check to make sure that the air con system is fully charged, if so it may be the heater control panel it's self that may be at fault. It may be worth a visit to a local specalist or dealer to get the fault memories read but ask for a fixed quote for diagnosis before hand. hope this may be of help.

Posted on Jan 18, 2009

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