Coolant temperature sending unit.
Located on the thermostat housing and/or on the intake manifold.
90 degree electrical plug connection.
Held in place by metal clip, which is included along, with a new o-ring seal.
1 gallon container to be mixed in equal parts with water
This is the newest formulation, MB part Q 1 03 0004 and is blue in color. It supersedes the previous coolants (Q 1 03 0002), which was yellow in color. The earlier fluid is not compatible with the blue fluid. A complete coolant flush and replacement is required, as the previous fluid has been discontinued. Do NOT mix the two different fluids together.
Outlet or Lower hose
Two way hose, much smaller diameter on one end, than on the opposite end
Attaches to end of coolant pipe on lower radiator hose.
See coolant pipe below....
