A/C recharge

[Takimo]

i need to recharge my a/c, where i need to plug ?

[upallnight]

You need to attach the refrigerant hose to the low side fitting of the system. Take it in to a tech if you don't know where to attach the refrigerant hose.

[Takimo]

seems like a easy DIY .. so i need 134a ... i went to my local store and they only have 12... and what is the recommende max pressure , i heard somethin betweet 25 and 32 is fair ...

[upallnight]

Temperature is dependent on ambient temp. I would not advise DIY unless there is someone that knows how to do it is there with you.

How do you know you need to add refrigerant to the system? Could be some else that is causing the ac not to work.

[Takimo]

i have a/c issue since last year, when its hotter , it doesnt deliver cold air, + it blow cold air only in driver side

[upallnight]

If it's only blowing cold air on the driver side the system is not low. Could be a hot water valve is not closing on the passenger side so the hot air from the heater core is mixing with the cold air from evaporator.

[Takimo]

well i bring my car to a a/c guy , and he told me my fans was not running, and he made a lighting test to prove it and well yea.. i guess i have to choice to bring my car to a garage

[upallnight]

Fan is controlled by the car DME. It turns the fan on and control the speed of the fan. You can command the fan to turn on if you have the correct BMW software. The software will also tell you if you have a faulty fan.

Never heard of the lighting test, not unless he is using a test light to show you that you don't have power to the fan. In that case yes the fan is no good and the fuse to the fan will also need to be replaced.

A fan can be brought for anywhere between 400 and 600 dollars (U.S.) . It a 3 - 4 hours labor to remove the old fan and install a new fan.

See this post on aux fan.

http://www.xoutpost.com/bmw-sav-foru...fan-fault.html

[Takimo]

yes, it was with the test light ... so its not only about the fuse ? its both ?

[upallnight]

Originally Posted by Takimo

yes, it was with the test light ... so its not only about the fuse ? its both ?

To blow a 50 amps fuse takes a lot of current. The only device on that circuit is the AUX FAN. If the fuse is blown, the AUX FAN is blown.