Precautions On Servicing Refrigerant Line

WARNING: This page is about a different car, the 2007 Suzuki Grand Vitara and 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.

When connecting hoses and pipes, apply a few drops of compressor oil (refrigerant oil) to seats of coupling nuts and O-ring.

Fig 1: Identifying Suction Hose, Liquid Hose, Pressure Sensor, Discharge Hose & Expansion Valve
Courtesy of SUZUKI OF AMERICA CORP.
Never use heat for bending pipes. When bending a pipe, try to make its bending radius as slight as possible.
Keep internal parts of air conditioning free from moisture and dirt. When disconnecting any line from system, install a blind plug or cap to the fitting immediately.
When tightening or loosening a fitting, use two wrenches, one for turning and the other for support.
Tighten bolts to specified torque.
Tightening torque

Refrigerant line bolt: 12 N.m (1.2 kg-m, 9.0 lb-ft)
Route drain hose so that drained water does not make any contact to vehicle components.