AC compressor / replacement

[grave77]

few months ago there was floods and heavy rain, and after that the AC compressor stopped compressing as I took it to a repair shop thinking that the gas is out. but the compressor was dead.

I was wondering if I can fit in the E38 compressor in? does it have the same brackets? Thanks

[shogun]

your compressor is probably the same as on the E32 750. Check on realoem, and also check which brand is actually installed on yours.
Here is a repair info on Nippon Denso
http://www.pelicanparts.com/techarticles/911_Nippondenso_rebuild/911_Nippondenso_rebuild.htm

http://www.a-aironline.com/bmw.aspx

[grave77]

I thought it was Seiko?

[grave77]

http://www.a-aironline.com/detail.aspx?ID=258 this is the one, same as the E38 unto 1996.

final question, the low compression rate is only due to a bad compressor or there might be other causes? just in case the technician doesn't know what he's doing ;)

[shogun]

few months ago there was floods and heavy rain, and after that the AC compressor stopped compressing

The system is completely closed system under pressure and no water can enter.
I assume that there is/was a short in the wiring system or some wires/connectors are corroded. That I would check first on the compressor.
Something what is electric...... and can be damaged with water or by a flood.

[grave77]

well the compressor is getting the signal and I can hear the hissing of the gas getting into the system, but when I took it thining that the gas leaked out, the technician said that the compressor was very weak

[MBXB]

Try checking the refrigerant pressure and seeing it if is within spec? Check for leaks first.

[grave77]

pressure is right, but when the AC is on the compressor doesn't show enough pressure. for sure no enough cooling, inside the car I can hear the gas hissing in the system, without any cold air.

[shogun]

I
can hear the gas hissing in the system, without any cold air.

I am not an aircon expert, but that would make me nervous. Hissing...

for me, as amateur,....

not enough gas inside.

[shogun]

one more

you say

pressure is right

how did you check this, any test data?

[grave77]

well that what I thought too, surprized when the meter shows the gas is full. I will check it tomorrow again at another place and see what will they say, otherwise I will need a new compressor.

[grave77]

according to the pressure meter on the filling valve it shows that the system is full, I don't know what should the pressure be in the system in Bar? I will recheck it tomorrow and get all the read outs with AC compressor on and Off, if the system is over filled with gas, I guess it will also not work propperly. would it?

[grave77]

well the compressor was dead, I replaced it and refilled the gas and now its fine.