Engine Audi CGWB

The 3.0-liter Audi CGWB 3.0 TFSI gasoline engine was assembled at the factory from 2010 to 2012 and installed on all-wheel drive versions of the popular A6 and A7 models in the C7 body before restyling. There was also a more powerful version of this power unit under a different CGWD index.

Specifications Production years 2010-2012 Displacement, cc 2995 Fuel system direct injection Power output, hp 300 Torque output, Nm 440 Cylinder block aluminum V6 Block head aluminum 24v Cylinder bore, mm 84.5 Piston stroke, mm 89 Compression ratio 10.5 Features DOHC Hydraulic lifters yes Timing drive 4 chains Phase regulator on the intake shaft Turbocharging compressor Recommended engine oil 5W-30 Engine oil capacity, liter 6.5 Fuel type petrol Euro standards EURO 5 Fuel consumption, L/100 km (for Audi A6 2011) — city — highway — combined 10.8 6.6 8.2 Engine lifespan, km ~260 000

The engine was installed on:

Audi A6 C7 (4G) in 2010 – 2012;
Audi A7 C7 (4G) in 2010 – 2012.

Disadvantages of the Audi CGWB engine

The main problem of all units of this series is increased oil consumption;
The reason for the oil burner is scuffing due to the ingress of catalyst crumbs into the cylinders;
Also, the chain is cracking here, since there are no check valves for the cylinder head oil channels;
Another culprit in the noise of the timing chains is the heavy wear of the hydraulic tensioners;
Other weak points of the engine: pump, injection pump, and muffler corrugations often burn out.

Author: El Guardiola

Doctor of Technical Sciences, former engineer at the Volkswagen plant in Chattanooga, Tennessee (10 years of experience), holder of certificates and patents for inventions, author of a training manual for employees of the Volkswagen Group of America. I consider the internal combustion engine to be the greatest technological achievement and I want to provide information about them to a wide range of car owners.