Operation CHARM: Car repair manuals for everyone.

"Z" Heights





"Z" Height






1. Lift the front bumper of the vehicle up about 38 mm (1.5 inches).
2. Gently remove your hands and let the vehicle settle on its own.
3. Repeat the operation twice more for a total of three times.
4. Measure the "Z" dimension.
5. Push the front bumper of the vehicle down about 38 mm (1.5 inches).
6. Gently remove your hands and let the vehicle rise on its own.
7. Repeat the operation twice more for a total of three times.
8. Measure the "Z" dimension.
9. Find the average of the high and low measurements. This is the true "Z" dimension.