Front Differential Fluid Flush

[scorpioy]

Can't we just use some transfer pump to suck old fluid from fill plug and then we save the effect to deal with drain plug? Although there is a little trade off as suction might not as complete as let fluid drain from drain plug... But I don't mind maybe a few drops of old fluid left over.

[Sam617]

Originally Posted by SmartSolution

I recommend new drain and fill plugs for both front and rear drain and fill plugs because they will have new sealing rings built in. They are the same part number front and back for the each two plugs.

I used Redline 75W90 part number 57904 from amazon. The other is for non-limited slip differentials. Someone else can chime in on the specifics and details between the two systems but the former is what has always been recommended for non-M cars and have always worked great for me.

Thanks!! Btw what x5 model do you have?

[SmartSolution]

Originally Posted by Sam617

Thanks!! Btw what x5 model do you have?

Mein auto an 07 3.0si

A good read here in general but see page 21-23 on more details about differential fluids and the difference between limited slip vs non-limited slip versions.

http://www.kneb.net/bmw/Old%20School...e%20v02.11.pdf

[SmartSolution]

Originally Posted by scorpioy

Can't we just use some transfer pump to suck old fluid from fill plug and then we save the effect to deal with drain plug? Although there is a little trade off as suction might not as complete as let fluid drain from drain plug... But I don't mind maybe a few drops of old fluid left over.

Definetely possible!

[Sam617]

Anyone knows the part numbers for the drain and fill plugs??
Thanks, Sam

[SmartSolution]

Originally Posted by Sam617

Anyone knows the part numbers for the drain and fill plugs??

Thanks, Sam

33117525064

http://www.ecstuning.com/Search/Hepu/ES205597/