Thread: What happened to your D3/D4 today?

Got my D4 back after having its crankshaft position sensor replaced. Running again, yay.

Originally Posted by PeterOZ

Gave the D3 a service, new oil in the TC & still to do the rear e.diff.

Had to order a new diff actuator motor as all the wiring has fallen to bits. Probably why it has been throwing up rear diff codes.

$1468 for a new one.

That will be my Thursday after work job and will give it new oil as well.
Attachment 176894 Attachment 176895 Attachment 176896

Another thing I don’t have that can’t break phew!

Is this a sign that I have a couple of sensors out? D4 3.0. Oil temp is trans. Not towing, just at 100kmh on the expressway for 5 or so kms

Originally Posted by John_D4

Is this a sign that I have a couple of sensors out? D4 3.0. Oil temp is trans. Not towing, just at 100kmh on the expressway for 5 or so kms

I would consider that normal.

Originally Posted by josh.huber

I would consider that normal.

I really don’t know, is there only 1 sensor per bank? Why is 1 side hotter than the other?

Originally Posted by John_D4

I really don’t know, is there only 1 sensor per bank? Why is 1 side hotter than the other?

I thought you were referencing the oil temp, sorry, but yeah..I see temps like that when im looking..I think they must be pre turbo maybe (don't attack me) as when you are taking off, the heat is on the other side for me

Originally Posted by josh.huber

I thought you were referencing the oil temp, sorry, but yeah..I see temps like that when im looking..I think they must be pre turbo maybe (don't attack me) as when you are taking off, the heat is on the other side for me

My bad. I was just pointing out that the oil temp is trans not engine oil.

Originally Posted by John_D4

I really don’t know, is there only 1 sensor per bank? Why is 1 side hotter than the other?

Because when cruising below 2500rpm only one turbo is being used and the exhaust gasses from both exhaust manifolds is funnelled to the smaller turbo