Removing and installing timing chain cover (top): Audi A1 (BHK, BHL, BPU, BYT, …)

🧭 Before you start

Relieve coolant pressure, remove the engine cover and camshaft control valves, and clear the coolant hose, earths, coil connectors, wiring duct, coolant pipe, dipstick tube and expansion tank. Remove the engine mounting and the six cover bolts, using T10370 for bolts 3 and 5. Clean all sealant residue with a cloth over the head, cut the nozzle to approx. 1.5 mm, lay the beads and fit the cover inside 5 minutes using the tightening sequence. Refit the control valves, engine mounting and cover panel.

Fits: Audi A1 (8X, 2010–2018)

• Renewed: seals

Don't miss

• Do not bend the coolant pipe into a new shape; press it aside only slightly.
• Cover the cylinder head with a clean cloth so old sealant cannot fall into the oil passages.
• Cut the sealant nozzle at approx. 1.5 mm and keep beads no thicker than specified.
• Fit the cover within 5 minutes of applying sealant and follow the tightening sequence.
• Renew the seals on bolts 3 and 5, and check the sealant use-by date before starting.

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

🔧 Engine codes this applies to

📋 Procedure

1. Open filler cap (1) on coolant expansion tank briefly to relieve residual pressure in cooling system. [Note: Disregard (item 2).]
2. Remove engine cover panel .
3. Remove inlet camshaft control valve 1N205/exhaust camshaft control valve 1N318.
4. Release hose clip (2) and detach coolant hose.
5. Seal off open lines and connections with clean plugs from engine bung setVAS 6122. [Note: Disregard (item 1).]

6. Remove nuts (arrows) and move earth wires clear.
7. Release electrical connectors (1 … 4) and unplug from ignition coils simultaneously (arrows).
8. Release fastener (arrow), detach wiring duct upwards from bracket and press forwards.
9. ⚠ Risk of damage to coolant line.Do not attempt to bend coolant line to a different shape. — Remove bolts (1, 2, 3) and carefully press coolant pipe slightly towards left.
10. Remove bolt (1) for dipstick guide tube.
11. Unclip guide tube for oil dipstick from timing chain cover (top) (arrow). [Note: Disregard (item 2).]
12. Remove bolts (arrows).
13. Unplug electrical connector (1) for coolant shortage indicator switch F66 and move coolant expansion tank to side.
14. Remove engine mounting .
15. Unscrew bolts (1 to 6) and remove timing chain cover (top). [Note: Unscrew bolts (3, 5) through engine support using socket, AF 4 mm T10370.]
16. Remove bolts (3, 5) if necessary. [Note: Renew seals.]
17. ⚠ Make sure sealant residue does not enter lubrication system.Place a clean cloth over the exposed section of the cylinder head. — Remove sealant residue on bearing saddle.
18. Clean surfaces; they must be free of oil and grease. [Note: Note the use-by date of the sealant.]
19. Cut off nozzle of tube at front marking (nozzle ∅ approx. 1.5 mm).
20. ⚠ Make sure lubrication system is not clogged by excess sealant.The bead of sealant must not be thicker than specified. — Apply beads of sealant (arrows) onto clean oil seals as shown in illustration. [Note: The timing chain cover (top) must be installed within 5 minutes of applying the sealant.]
21. Install timing chain cover (top); tightening sequence .
22. Install camshaft control valve 1N205 / exhaust camshaft control valve 1N318.
23. Install engine mountings .
24. Install engine cover panel .

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