AC Not working, clutch not engaging, Solar Sensor errors on BMW Scanner 1.4

[diddy0071]

Originally Posted by katit

All comes down to proper tools. #5 is not hard. It's just 3 bolts that hold your compressor to engine. 2 upfront and one on a back. Pretty easy to get to. I did take them out so I can move compressor little backwards (more room)

Soo.. NO NEED to do this if you have good 90 degree snap ring pliers. First snap ring that holds pulley is almost on top and the one on a coil is little deeper, thats all.

As for locating pin.. Coil have to be oriented in certain position (wires going up) It can rotate. So, there is a small hole in compressor under coil and coil has small pin sticking out that goes to this hole. This is to prevent coil from spinning. Original coil has pin in a proper spot. But eBay replacements do not have it in proper spot and you need to grind it off in order for coil to be flush. But then nothing stops replacement coil from spinning. I was told that it's OK, it won't go anywhere. Worked for 5 years

Attaching pictures of original (white) and eBay (black) coils

Where did you grind? I can't tell. They both look similar, except the bottom one (original) has what looks like a resistor or chip in it.

[katit]

Marked pins in red. Picture is before I grind it. On black coil just take this notch off with a wheel, dremel, etc.

On original it's not resistor, it's diode. I think it's optional. I did move it to the new coil, but I hear it's not necessary.

[diddy0071]

Originally Posted by katit

Marked pins in red. Picture is before I grind it. On black coil just take this notch off with a wheel, dremel, etc.

On original it's not resistor, it's diode. I think it's optional. I did move it to the new coil, but I hear it's not necessary.

Sweet!!! So it looks to be something that isn't too hard! Definitely tackling this when I get the part in.

[katit]

Yes, took me about 2.5 hours start to finish with breaks. Good thing is that AC driven by separate belt, so even if you didn't finish - just make sure mount compressor back on (3 bolts) and put your fan on and you can drive for couple days..

[upallnight]

Originally Posted by diddy0071

I had originally bought the freon can thinking it was low. It came with the hose that only attaches to what I assume is the lowside port. The port shows that it is in the "red" or 60-80psi.

The fan clutch does not engage at all. I was messing with NCS expert today trying to get the fucking thing to code the windows rolling up with the key (STILL NOT WORKING, I dunno what I'm doing wrong btw) and I decided to run another check with BMW Scanner 1.4. This is what I got:

On R134a system which is what is in our X the refrigerant that you brought with the hose already attach can only be install on the low port side. Unless the compression is engaged and spinning the reading of 60-80 PSI is just the static pressure. I would not try to put in more refrigerant until you are able to get the compressor running.

Did you try commanding the fan on with BMW scanner 1.4? Performing this test will tell you if the Aux Fan is good or bad.

[diddy0071]

Originally Posted by upallnight

On R134a system which is what is in our X the refrigerant that you brought with the hose already attach can only be install on the low port side. Unless the compression is engaged and spinning the reading of 60-80 PSI is just the static pressure. I would not try to put in more refrigerant until you are able to get the compressor running.

Did you try commanding the fan on with BMW scanner 1.4? Performing this test will tell you if the Aux Fan is good or bad.

Where is the option to command the fan to operate?

[diddy0071]

Originally Posted by katit

Marked pins in red. Picture is before I grind it. On black coil just take this notch off with a wheel, dremel, etc.

On original it's not resistor, it's diode. I think it's optional. I did move it to the new coil, but I hear it's not necessary.

The coil I received looks nothing like yours. did I get the wrong part?

2001 2003 BMW x5 Compressor Coil 97349 10S17C 5GRV | eBay

[upallnight]

Did you compare it with the coil on your X5? The other poster brought a non original coil and just Macgyver it to work sort of.

[diddy0071]

Originally Posted by upallnight

Did you compare it with the coil on your X5? The other poster brought a non original coil and just Macgyver it to work sort of.

I posted a link to the ebay page of what the coil looks like. No cables or anything attached to it.

[diddy0071]