100K miles so decided to do my front bevel box, rear differential, and Haldex unit. ~26K since last change but quite a bit of track days. Stuck with GL4 Redline gear oil and Febi-Bistein Haldex fluid. Tried the MoS2 for gears.
F. bevel box
Out: ~1qt Redline MT90
In: ~1 qt Redline MT90 + 1 tube of Liquimoly MoS2 for gears
Smells nasty and was dirty.
Used a new drain and fill plug. Drain plug is magnetic.
R. differential
Out: ~1qt Redline MT90
In: ~1 qt Redline MT90 + 1 tube of Liquimoly MoS2 for gears
Looked nice and clean.
Used a new drain and fill plug. Drain plug is magnetic.
Haldex clutch unit:
Out: ~1qt Febi/Bilstein Haldex fluid
In: ~1 qt Febi/Bilstein Haldex fluid
Already have a magnetic drain plug on this one so just replace crush washers. Clean the pump screen. Cycle pump using VW scan tool.
Everything including some other things (oil change kit for Atlas, rotor set screws, oil filter for Sportwagen) boxed up to send back to FCP Euro for refund credit with their Lifetime Replacement Guarantee (LRG)...about $185 worth; shipping was $17 using pirateship.