Distortion of Gasket Surface
WARNING: This page is about a different car, the 2011 Suzuki SX4. However, it is still accessible from the selected car via links, so may be relevant.
Using straightedge and thickness gauge, check gasket surface for distortion and, if flatness exceeds its limit, repair It.
If repair is not possible, replace cylinder block.
Cylinder block flatness
Limit: 0.03 mm (0.001 in.)