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 MANUALSAUDI2007S8REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETUNE-UP5.2L - ENGINE MECHANICAL, ENGINE CODE(S): BSM13 - ENGINE - CRANKSHAFT, CYLINDER BLOCKPISTON AND CONNECTING ROD, DISASSEMBLING AND ASSEMBLINGPISTON AND CONNECTING ROD, COMPONENT OVERVIEWMEASURING CYLINDER BORE
2007 Audi S8
Measuring cylinder bore
2007 Audi S8SECTION Measuring cylinder bore
- Using an internal dial gauge 50 to 100 mm, measure at 3 points in diagonal sequence horizontally - A - and vertically - B -.
- Maximum deviation from nominal dimension: 0.08 mm.
Nominal dimension → Piston and Cylinder Dimensions .
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.