Checking chain tensioner for oil pump and removing and installing oil pump — VW

🧭 Before you start

Fits: VW Passat B5 (3B)

• Opens: engine oil
• Renewed: chain tensioner

Don't miss

• Observe environmental regulations for disposal.
• To renew chain tensioner, remove front sealing flange .

🔧 Engine codes this applies to

📐 28 workshop diagrams for ACK

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Remove noise insulation General body repairs, exterior50Body - front; Assembly overview - sound insulation.
2. Drain engine oil. [Note: Observe environmental regulations for disposal.]
3. Remove lower part of sump .
4. Insert a screwdriver between the chain and the chain tensioner and lever carefully against the chain tensioner, in (direction of arrow).
5. If there is no spring tension or the drive chain is slack, the chain tensioner is defective and must be renewed. [Note: To renew chain tensioner, remove front sealing flange .]

6. Remove both brackets (arrows) for oil supply pipe.
7. Pull longer oil supply pipe out of upper part of sump.
8. Unbolt chain sprocket from oil pump (arrow) and pull it down off oil pump drive shaft.
9. Remove oil pump together with shorter oil supply pipe (arrows).
10. First insert shorter oil supply pipe with new O-ring in oil pump, then fit oil pump.
11. Install lower part of sump .

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