The waxstat stopped working in my D24T some time ago, so I replaced it. I took some photos in the process, and thought i would share them with you guys. Here in the cold and dark scandinavia, its not so fun to have a non-working cold-starting-device
At first, this repair was not meant to be a making of a tutorial, so the photos are not the best.
The parts you need: New wire, o-ring, and the wax-stat itself.
Now you have to take the waxstat housing apart. First, remove the two coolant hoses. The housing holds together with two 5mm (as i remember..) allen bolts. There is some large springs in the housing, so be careful when you loosen the bolts. You also need to loosen the wire at the screw in the retainer at the other end.
The Wax-thingy, is located in this part
Remove it..
Now you can see the element, behind the "nut"..
I used a "VW strut tool", to loosen the nut.
HAZET part number 2593-3
Old element, out of the housing
New vs. old wire...
Fit the springs, and put the thing back together in reverse order...
According to Bosch, there is a very specific method to adjust the wire in the retainer. What I did, was to start the engine, vent the cooling system. When the engine is at operating temperature, the waxstat piston is all the way out, and the wire is fully slacked. Then tighten the screw in the retainer.
Enjoy
