Engine Number

WARNING: This page is about a different car, the 2012 Audi S5, 2011 Audi S5, and 2010 Audi S5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The engine number is only visible if the front engine cover is removed.

Fig 1: Locating Engine Code And Serial Number

Courtesy of AUDI OF AMERICA, LLC

The engine number ("engine code" and "serial number") is located at front on cylinder block, below the right cylinder head -arrow-.
Engine codes beginning with "C" are four-digit.
The first 3 digits of the engine code stand for displacement and the mechanical structure of the engine. They are stamped in the cylinder block, including the serial number.
The fourth digit describes the engine output and torque and depends on the engine control module.

NOTE:

The 4-digit engine code is on the type plate, vehicle data label and engine control module.

For locations of the type plate and vehicle data label. Refer to the MAINTENANCE, DIAGNOSIS (MAINTENANCE PROCEDURES) (CABRIOLET) .