Removing and installing glow plugs - engine code CCLA — AUDI

🧭 Before you start

Fits: Audi A5 (8T, 2007–2016), Audi A5 Cabriolet (8F), Audi A4 B8 (8K, 2007–2015)

• Special tools named: torque wrench

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• Attach glow plug connectors correctly and make sure connectors are securely fitted.

🔧 Engine codes this applies to

📋 Procedure

1. Switch off ignition.
2. Remove engine cover panel (see the separate procedure). [Note: For cylinders No. 3 and 6 the respective intake manifold flap motor must be detached. Do not detach the connecting rod. The wiring harness must also be detached (unscrew the respective retaining stud for the engine cover panel).On cylinders 3 and 5, a combustion chamber pressure sender is integrated in the glow plugs. Designation: glow plug 2Q11 with cylinder 2 combustion chamber pressure sender G678Designation: glow plug 5Q14 with cylinder 5 combustion chamber pressure sender G681]
3. Detach glow plug connectors from glow plugs.
4. Clean glow plug openings in cylinder head; make sure no dirt gets into cylinder. [Note: Cleaning procedure:Use a vacuum cleaner to remove coarse dirt. Spray brake cleaner or suitable cleaning agent into glow plug openings, let it work in briefly, and blow out with compressed air. Then clean the glow plug openings using a cloth moistened with oil.]
5. To loosen glow plugs 1, 3, 4 and 6, use U/J extension and socket, 10 mm 3220.

6. To loosen glow plugs 2 and 5, use socket insert AF 12 for glow plugs 4-cyl.TDI CR diesel VAS 6454.
7. Fit glow plugs carefully by hand or using a suitable hose. Keep the glow plugs straight while screwing them back in.
8. To tighten glow plugs, use U/J extension and socket, 10 mm 3220 / socket insert AF 12 for glow plugs 4-cyl.TDI CR diesel VAS 6454 and a suitable torque wrench.
9. Attach glow plug connectors correctly and make sure connectors are securely fitted.
10. Install any ancillary units that were previously detached.

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