Manual testing and corrosion | Technical state diagnostics Car Mechanic Simulator 2015 Guide

Manual testing is the easiest way to check whether a part qualifies for changing. To do it, look at the chosen car part, select the examine mode and then pick the component you want to test - then, press the RMB, wait a while and you will see the state of an item described by percentage value and color. It is not always possible to make examination with this traditional way - sometimes you will be forced to use more advanced forms of diagnostics.

Cover of the ending head seems to be in bad condition...

In many cases thorough examination isn't needed to determine the state of a part - it is visible at first glance that a part is qualified for changing due to advanced corrosion. After removing a damaged part information about its technical state pop ups - the most corroded ones can be automatically considered is parts that need to be replaced.