Engine Number

NOTE:

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

The engine number ("engine code" and "serial number") is located at front on cylinder block at top -arrow 1-.

Fig 1: Identifying "Engine Code" And "Serial Number"
Courtesy of AUDI OF AMERICA, LLC
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:

Ignore -arrow 2-.

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

Locations of the type plate and vehicle data label. Refer to the Maintenance Procedures.