China's anti-monopoly officials have searched the German automaker's Shanghai office, and questioned top leaders and staff members.
The Chinese government is taking action to make the distribution of automobiles more transparent through simplifying the application and administration process.
One of the biggest mobile chipmakers in the world lost $13 billion in market value due to negative impact created by an anti-monopoly investigation in China.
German automaker Mercedes-Benz will cut the prices of spare parts by an average of 15 percent in after-sales maintenance for all models as of Sept 1 in China.
The Chinese antitrust regulator confirmed on Tuesday that it is launching an anti-monopoly investigation concerning Microsoft Corp's Windows operating system and Office business software.
It appears to be the latest US company targeted by China's antitrust probe as government officials paid sudden visits to the software firm's Chinese offices.