S5 Quattro Coupe V8-4.2L (CAUA) (2009)
‹› Note the expiration date of the sealing compound.
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Cut the tube nozzle at the front marking (nozzle diameter approximately 2 mm).
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Lightly coat top and bottom cylinder head seal sealing surfaces with lubricant by bending the seals down slightly again - arrows -.
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Use a flat object such as a feeler gauge to coat the surface between the cylinder head and seal.
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Fill the cleaned cylinder head seal holes - arrow - with sealant.