Removing and installing camshaft timing chains - vehicles from 03.2007 onwards — AUDI

🧭 Before you start

With the engine out, remove the pressure plate, flywheel, head covers, timing chain covers, intake manifold, oil filter housing and bottom cover. Take the chains off the camshafts, then remove each tensioner with its chain after marking running direction. Lock the tensioners, fit new gaskets and refit tensioners and chains to the marks. Rebuild in reverse, including a crankshaft oil seal at the gearbox end, then fill and check engine oil.

Fits: Audi A4 Cabriolet B6/B7 (8H), Audi A4 B6/B7 (8E)

• Timing position: the crankshaft or camshaft is set and locked during this job
• Renewed: gasket

Don't miss

• Mark chain running direction with coloured arrows; never with a centre punch or a notch.
• The crankshaft must not be at TDC on any cylinder when the camshafts are turned.
• Lock the chain tensioners with locking pin T40071 before fitting.
• Renew angle-tightened bolts and tensioner gaskets.
• Tensioning element orientation: drilling faces the tensioner, piston faces the tensioner rail.
• Fill with engine oil and check the level after the engine is back in.

Written for this job from the workshop steps below · TorqFix editorial.

🔧 Engine codes this applies to

📋 Procedure

1. Remove clutch pressure plate 30.
2. Remove dual-mass flywheel .
3. Remove cylinder head cover: left-side , right-side .
4. Remove timing chain covers (left and right) .
5. Remove intake manifold 24.

6. Remove oil filter housing .
7. Remove timing chain cover (bottom) .
8. Remove camshaft timing chains from camshafts .
9. ⚠ If a used camshaft timing chain rotates in the opposite direction when it is refitted, this can cause breakage.Mark running direction of camshaft timing chain with coloured arrows for re-installation. Do not attempt to mark the timing chain with a centre punch or by making a notch or similar. — Unscrew bolts (1) and (2) and remove chain tensioner (left-side) and camshaft timing chain (left-side).
10. Unscrew bolts (1) and (2) and remove chain tensioner (right-side) and camshaft timing chain (right-side). [Note: Note the correct installation position if the tensioning element has been removed from the chain tensioner: drilling in base of housing faces chain tensioner and piston faces tensioner rail.Renew the bolts tightened with specified tightening angle.Renew gasket.]
11. ⚠ Avoid damage to valves and piston crowns.The crankshaft must not be at "“TDC”" at any cylinder when the camshafts are turned. — Press guide rails of chain tensioners for camshaft timing chains (left and right) inwards in direction of (arrow) as far as the stop. Then lock chain tensioners by inserting locking pin T40071.
12. If necessary, clean oil strainer (2) in both chain tensioners.
13. Fit new gasket (3) to rear of chain tensioner (1).
14. Install chain tensioner on cylinder head (left-side) and position camshaft timing chain as shown in the illustration (according to marks applied when removing).
15. Tighten bolts (1) and (2).
16. Install chain tensioner on cylinder head (right-side) and position camshaft timing chain as shown in the illustration (according to marks applied when removing).
17. Tighten bolts (1) and (2).
18. Position timing chains on camshafts .
19. Install timing chain cover (bottom) .
20. Install crankshaft oil seal (gearbox end) .
21. Install oil filter housing .
22. Install intake manifold 24.
23. Install timing chain covers (left and right) .
24. Install cylinder head cover: left-side , right-side .
25. Install dual-mass flywheel .
26. Install clutch pressure plate 30.
27. After installing engine, fill up with engine oil and check oil level 803 or 805.

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