Audi A8 2003 Workshop Manual page 321

8-cylinder TDI engine (4.2 ltr. 4-valve common rail), mechanics - Edition 12.2013
– Listen for leaks at joints between cylinder head/exhaust mani‐
fold, exhaust manifold/turbocharger, turbocharger/front ex‐
haust pipe etc.
– Rectify any leaks that are found.
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1. Removing and installing parts of exhaust system
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