Why my aircon air is low when i drive for 20min?

[waltergoh]

When i am driving my 2000 BMW318i for abt 20-25min I am experiencing this....
The aircon air coming out of the vent seem to have this "choked" problem. Cool air is still blowing out but is very very low.

I need to switch to Maximum Fan mode and let it run for a few second and it lasts for a while before the problem comes back..

Has anyone experienced this before?

 

[waltergoh]

Re: Why my aircon air is low when i drive for 20min?

No one know whats the problem or have the same problem before?

 

[phil]

Re: Why my aircon air is low when i drive for 20min?

Initially i thought you had it on auto mode, to which that will happen

 

[centurion]

Re: Why my aircon air is low when i drive for 20min?

after 7 years it's a good time for servicing the condenser

 

[VenomX2]

Re: Why my aircon air is low when i drive for 20min?

you might want to get to a shop that can figure it out. It could be a leak in the system, etc... Had problems with my aircon as well and they did a UV check and found a leak from the aircon coil.

 

[centurion]

Re: Why my aircon air is low when i drive for 20min?

you might want to get to a shop that can figure it out. It could be a leak in the system, etc... Had problems with my aircon as well and they did a UV check and found a leak from the aircon coil.

I say that it is not a leak. Because there is still SOME cool air coming out. I think the condenser coil is so dirty. If there is a leak, the ECU will STOP the aircon to protect everything.

 

[VenomX2]

Re: Why my aircon air is low when i drive for 20min?

I say that it is not a leak. Because there is still SOME cool air coming out. I think the condenser coil is so dirty. If there is a leak, the ECU will STOP the aircon to protect everything.

If not a leak then could be the temperature sensor/resistor?

 

[emiffy]

Re: Why my aircon air is low when i drive for 20min?

If you never had the "FINAL STAGE RESISTOR" changed before, and the aircon's cold, then it's probably high time to get it changed. A simple 10-15 minute job, parts + labour under $200 if you do it at any of the workshops recommended.

 

[cheez]

Re: Why my aircon air is low when i drive for 20min?

LIkely condenser coil leak.. Experienced the same on my car recently and had the coil changed out. Enjoying the cold air thereafter..

 

[waltergoh]

Re: Why my aircon air is low when i drive for 20min?

LIkely condenser coil leak.. Experienced the same on my car recently and had the coil changed out. Enjoying the cold air thereafter..

How much u spent on the coil? nvm did anything to my BMW before. It a 7 year old car but milegae still under 70000KM

 

[cheez]

Re: Why my aircon air is low when i drive for 20min?

Damage total came up to about 1.3k.. Got it done at J4C...