Engine Number/Engine Characteristics

NOTE:

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

Fig 1: Identifying "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 at top -arrow 1-.
Engine codes beginning with "C" are four-digit.
The first three 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 4th digit describes the engine output and torque and depends on the engine control module.

NOTE:

Ignore -arrow 2-.

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

Codes		CALB
Displacement	liter	3.197
Output	kW at RPM	199/5000
Torque	Nm at RPM	330/3000
Bore	diameter in mm	85.5
Stroke	mm	92.8
Compression ratio		12.5
RON	at least	95 ¹⁾
Fuel injection and ignition system		Simos
Ignition sequence		1-4-3-6-2-5
Turbocharger		no
Knock control		2 sensors
Oxygen sensor regulation		4 heated oxygen sensors
Variable valve timing		Intake and exhaust
Variable intake manifold		yes
Secondary Air Injection (AIR) System		yes
Valve per cylinder		4
¹⁾ Regular unleaded RON 91 is permitted although with reduced engine power.

Technical Data

Test Data	3.2L / 4V FSI
Idle speed Cannot be adjusted, regulated by idle stabilization	650 to 750 RPM ¹⁾
Fuel pressure after high-pressure pump	40 to 110 bar (580 to 1595 psi) pressure
Fuel pressure before high-pressure pump	3.8 to 5.7 bar (55 to 82.6 psi) pressure
¹⁾ Depending on engine control module (ECM) requirements.