Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2007RS4 QUATTRO SEDAN (8EC) V8-4.2L (BNS)REPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYSYSTEM SPECIFICATIONSCYLINDER BLOCK SPECIFICATIONS
2007 Audi RS4 Quattro Sedan (8EC) V8-4.2L (BNS)
Cylinder Block Specifications
2007 Audi RS4 Quattro Sedan (8EC) V8-4.2L (BNS)SECTION Cylinder Block Specifications
Piston and Cylinder Dimensions
Cylinder bore
Maximum deviation from nominal dimension 0.08 mm
Piston
Maximum deviation from nominal dimension 0.03 mm
Piston Ring End Gap
Piston Ring Side Clearance
Connecting rod bearing
Allocation of connecting rod bearing shell thickness to crankshaft
Connecting rod
Radial clearance
New 0.020 to 0.069 mm
Wear limit 0.120 mm
Main Bearing
Allocation of Crankshaft Bearing Shells for Cylinder Block
Crankshaft
Axial Clearance 0.090 to 0.251 mm
Guide frame
Vibration Damper
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.