Drive chain for timing mechanism, removing and installing

WARNING: This page is about a different car, the 2010 Audi A8, 2009 Audi A8, 2008 Audi A8, and 2007 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

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Old oil collecting and extracting device V.A.G 1782

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Securing pin T40071

Removing

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Remove rear sound insulation by loosening fasteners - 1 and 2 -.

NOTE:

Ignore items - 3 and 4 -.

Place old oil collecting and extracting device V.A.G 1782 under engine and drain engine oil.
Remove automatic transmission → 37 - CONTROLS, HOUSING .
Remove drive plate → Drive plate, removing and installing .
Remove cylinder head cover: left → Left cylinder head cover, removing and installing , right → Right cylinder head cover, removing and installing .

Remove left and right timing chain covers → Left and right timing chain covers, removing and installing .
Remove intake manifold → 24 - MULTIPORT FUEL INJECTION (MFI) .
Remove oil filter housing → Oil filter housing, removing and installing .
Remove lower timing chain cover → Timing chain lower cover, removing and installing .

Remove camshaft timing chains → Camshaft timing chain, removing and installing .
Remove power take-off drive chain → Power take-off drive chain, removing and installing .

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Push drive chain tensioner guide rail in direction of - arrow - and secure chain tensioner using Locking Pin T40071.
Identify running direction of drive chain with paint for reinstallation.
Remove bolts - 1 - and remove guide rail.
Remove bolts - 2 to 4 - and remove chain tensioner.

Remove timing mechanism drive chain.

Installing

Tightening torques → Timing mechanism drive chain, assembly overview .

Installation is in reverse order of removal, note the following:

NOTE:

Replace bolts which have been tightened to torque.

Route timing mechanism drive chain according to marks applied to drive chain sprockets during removal.

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Install guide rail and tighten bolts - 1 -.
Install chain tensioner and tighten bolts - 2 -.
Press drive chain tensioner guide rail in direction of - arrow - and remove Locking Pin T40071 from chain tensioner.
Install power take-off drive chain → Power take-off drive chain, removing and installing .

Install camshaft timing chains → Installing .
Install lower timing chain cover → Timing chain lower cover, removing and installing .
Install crankshaft seal, transmission side → Transmission-side crankshaft sealing ring, replacing .
Install oil filter housing → Oil filter housing, removing and installing .

Install intake manifold → 24 - MULTIPORT FUEL INJECTION (MFI) .
Install left and right timing chain covers → Installing .
Install cylinder head covers: Left → Left cylinder head cover, removing and installing , right → Right cylinder head cover, removing and installing .
Install drive plate → Drive plate, removing and installing .

Install automatic transmission → 37 - CONTROLS, HOUSING .
Add engine oil and check oil level → Oil level, checking .