Removing and installing drive chain for balancer shaft and oil pump — VW

🧭 Before you start

Fits: VW Touareg II (7P, 2010–2018)

• Timing position: the crankshaft or camshaft is set and locked during this job
• Special tools named: T40049, T40116, locking pin

Don't miss

• Unscrew sealing plug (arrow) for "“TDC”"; (crankshaft mark), from cylinder block.
• Replace bolts that are tightened with specified tightening angle.
• Fit sealing plug for "“TDC”" mark (crankshaft) .

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. Remove lower timing chain cover .
2. ⚠ Danger of damage to drive chain due to excessively long bolt thread.In order to bolt the socket on T40049, it is only permissible to use bolts with a maximum thread length (a) of 22 mm.If only longer bolts are available, washers must be placed under each bolt head so that the remaining thread length is only 22 mm at most. — Mount socket T40049on rear of crankshaft with 2 bolts (arrows).
3. Unscrew sealing plug (arrow) for "“TDC”"; (crankshaft mark), from cylinder block.
4. Using adapter T40058 and cranked ring spanner, turn the crankshaft in direction of engine rotation (arrow) to "“TDC”".
5. Screw locking pin T40069 into hole (20 Nm); if necessary, turn crankshaft (1) backwards and forwards slightly to fully centre locking pin. — 20 Nm (15 lb-ft)

6. Press guide rail of chain tensioner in direction of (arrow) and lock chain tensioner by inserting locking pin T40071.
7. ⚠ Drive chain may be destroyed if it runs in the opposite direction to the direction it ran before.If drive chain is to be reinstalled: mark direction of rotation with a coloured arrow. Do not use indentation, notches or similar to mark drive chain. — Unscrew bolts (3) and remove balancer shaft chain sprocket.
8. Unscrew bolts (1) and (2), remove chain tensioner together with chain. [Note: Replace bolts that are tightened with specified tightening angle.]
9. Install chain tensioner with chain and balancer shaft chain sprocket.
10. Lock balancer shaft with locating pin T40116 in "“TDC”".
11. Tighten chain tensioner bolts.
12. Screw in chain sprocket bolts (1) loosely.
13. Remove locking pin T40071 to release chain tensioner.
14. Press against guide rail of chain tensioner using a screwdriver (arrow), and at the same time tighten bolts (1) securing chain sprocket.
15. Pull locating pin T40116 out of balancer shaft.
16. Install lower timing chain cover .
17. Fit sealing plug for "“TDC”" mark (crankshaft) .

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