In this chapter you will find information on the following subjects:
⇒ Warning and indicator lights
⇒ Steering system informationThe power steering system not hydraulic, it is electro-mechanical. In both cases, the power steering works only when the engine is running.
The hydraulic power steering system uses hydraulic lines, hydraulic oil, a pump, a filter, and other parts to maintain a constant oil pressure in the hydraulic system.
The electromechanical power steering system automatically adjusts to driving speed, steering torque, and the steering angle of the wheels. It delivers extra steering force only when you are actually turning the wheels. The electromechanical power steering works only when the engine is running.
More information:

Warning
Steering
Warning and indicator lightsVolkswagen Tiguan Service and Repair Manual > Subframe, Stabilizer Bar and Control Arms: Ball Joint, Checking
Axial Play, Checking
Forcefully pull control arm down in the direction of
-arrow- and press it up again.
Radial Clearance, Checking
Forcefully push the lower part of wheel inward and outward in the
direction of -arrow-.
Note
There should not be any noticeable or visible "play" in either ...