Service Manual

Coolant Heater ISB, ISBe and QSB (Common Rail [...]
Page 8-8 Section 8 - Cooling System - Group 08
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Clean and Inspect for Reuse
Clean the cup plug bore (or hole) thoroughly with a clean
rag.
Make sure there are no burrs, metal shavings, or sharp
edges that can possibly cut the o-ring.
WARNING
To reduce the possibility of personal injury, do not
touch the electrical supply wires or component while
the testing procedure is in action.
Check the coolant heater for cracks on the element.
Check the o-ring for cracks.
Test the coolant heater resistance. The resistance must
read between minimum 18.2 to maximum 21.1 ohms.
Install
Flange Mounted
Lubricate the new heater o-ring with clean 15W-40 engine
oil.
Install the heater.
Tighten the two retaining capscrews.
Torque Value: 24 N•m [ 212 in-lb ]