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.
|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|
|Timing drive||4 chains|
|Phase regulator||on the intake shaft|
|Recommended engine oil||5W-30|
|Engine oil capacity, liter||6.5|
|Euro standards||EURO 5|
|Fuel consumption, L/100 km (for Audi A6 2011)
|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.