E39Convert
09-17-2009, 06:51 AM
This is a pretty easy job on a 540i.
Loosen the wheel bolts.
Jack up the passenger side.
Remove the wheel.
The belly pan on my car was removed from the coolant flush that I had just performed. (don't remember if this is required)
Disconnect the outside Air Temp Sensor to allow you to completely remove the panel
Remove this panel:
http://img338.imageshack.us/img338/2110/e39540isap016.jpg
I removed my Dinan air filter for easier access but you might not have this problem with the stock filter. I'm not sure since the Dinan CAI came with my car.
Unplug the electrical connector for the SAP and unplug the hose from the SAP.
http://img508.imageshack.us/img508/4206/e39540isap022.jpg
Unbolt the two bolts that attach the bracket to the car.
Here is the part I ordered: 11721433958, it comes with the three pronged bracket. The one that was on my car only had two prongs on the bracket instead of three like in the drawing so I had to reuse the old bracket.
http://www.realoem.com/bmw/showparts.do?model=DN53&mospid=47588&btnr=11_2285&hg=11&fg=50
Here's the old pump with the water that came out of it.
http://img25.imageshack.us/img25/9248/e39540isap018.jpg
If you find water or rust in your pump I would suggest that you replace the valve at the same time because it has probably failed. That's how water got into your SAP.
Part #8 in this drawing:
http://www.realoem.com/bmw/showparts.do?model=DN53&mospid=47588&btnr=11_2285&hg=11&fg=50
P/N: 11721707619 for my car.
You can kind of see the rust on the shaft in my old pump here:
http://img27.imageshack.us/img27/4326/e39540isap019.jpg
I also replaced all the tubes and parts on this page as a precaution:
http://www.realoem.com/bmw/showparts.do?model=DN53&mospid=47588&btnr=11_2287&hg=11&fg=45
New pump installed:
http://img195.imageshack.us/img195/456/e39540isap029.jpg
Reinstall filter. Good time to check if it needs to be replaced.
Reinstall panel.
Reconnect Air Temp Sensor.
Reinstall wheel.
Reinstall belly pan if removed.
Lower Vehicle and tighten up lugs on wheel.
Done.
Loosen the wheel bolts.
Jack up the passenger side.
Remove the wheel.
The belly pan on my car was removed from the coolant flush that I had just performed. (don't remember if this is required)
Disconnect the outside Air Temp Sensor to allow you to completely remove the panel
Remove this panel:
http://img338.imageshack.us/img338/2110/e39540isap016.jpg
I removed my Dinan air filter for easier access but you might not have this problem with the stock filter. I'm not sure since the Dinan CAI came with my car.
Unplug the electrical connector for the SAP and unplug the hose from the SAP.
http://img508.imageshack.us/img508/4206/e39540isap022.jpg
Unbolt the two bolts that attach the bracket to the car.
Here is the part I ordered: 11721433958, it comes with the three pronged bracket. The one that was on my car only had two prongs on the bracket instead of three like in the drawing so I had to reuse the old bracket.
http://www.realoem.com/bmw/showparts.do?model=DN53&mospid=47588&btnr=11_2285&hg=11&fg=50
Here's the old pump with the water that came out of it.
http://img25.imageshack.us/img25/9248/e39540isap018.jpg
If you find water or rust in your pump I would suggest that you replace the valve at the same time because it has probably failed. That's how water got into your SAP.
Part #8 in this drawing:
http://www.realoem.com/bmw/showparts.do?model=DN53&mospid=47588&btnr=11_2285&hg=11&fg=50
P/N: 11721707619 for my car.
You can kind of see the rust on the shaft in my old pump here:
http://img27.imageshack.us/img27/4326/e39540isap019.jpg
I also replaced all the tubes and parts on this page as a precaution:
http://www.realoem.com/bmw/showparts.do?model=DN53&mospid=47588&btnr=11_2287&hg=11&fg=45
New pump installed:
http://img195.imageshack.us/img195/456/e39540isap029.jpg
Reinstall filter. Good time to check if it needs to be replaced.
Reinstall panel.
Reconnect Air Temp Sensor.
Reinstall wheel.
Reinstall belly pan if removed.
Lower Vehicle and tighten up lugs on wheel.
Done.
