Audi Q7 4.2 TDi (2007) review. Published:10 May 2007. At a glance. Handling 3 out of 5. Performance 5 out of 5. Usability 5 out of 5. Feelgood factor 4 out of 5. CAR's Rating 4 out of 5. Car
2.7T quattro: 4.2 quattro: Engine/Engine Design: Type: V6, 90 degree, DOHC, gasoline Six-cylinder four-stroke, spark ignition, two light alloy cylinder heads, three inlets and two (sodium-cooled) exhaust valves, DOHC, twin turbochargers DOHC aluminum alloy 90 degree V8, LEV exhaust standard Bore: 3.25 in (82.5 mm)
Audi 4.2 V8 Engine Problems. Timing Chain Failure. Carbon Buildup. VVT/Vanos Solenoid Failure. Ignition Coil Failure. Intake Manifold Linkage Arms. 1. Timing Chain Failure – Audi 4.2 V8. The timing chain connects the crankshaft and camshaft together and controls the opening and closing of the engines intake and exhaust valves. .