Overview - Cylinder Head: Notes

Fig 1: Identifying Cylinder Head Overview

Courtesy of AUDI OF AMERICA, LLC

1. Cylinder Head Gasket
   • Replace:
     • Vehicles with a turbocharger, refer to CYLINDER HEAD REMOVING, VEHICLES WITH A TURBOCHARGER .
   • Identification, refer to Fig 3
   • Installed position: the part number faces the cylinder head
   • Change the coolant and engine oil after replacing
2. Cylinder Head
   • Only set the removed cylinder head down on a foam pad. Otherwise the glow plugs can be damaged.
   • Removing:
     • Vehicles with a turbocharger, refer to CYLINDER HEAD REMOVING, VEHICLES WITH A TURBOCHARGER .
   • Installing, refer to CYLINDER HEAD, INSTALLING, ALL ENGINES .
   • Check for distortion, refer to Fig 2
   • It is not permitted to re-work the cylinder heads on TDI engines
   • Change the coolant and engine oil after replacing
3. Bolt
   • 23 Nm
4. Bracket
5. Engine Lifting Eye
6. Bolt
   • 23 Nm
7. Seals
   • Replace
8. Banjo Bolt
   • Tightening specification -item 13- OVERVIEW - COOLANT PIPES => List Item:Banjo Bolt .
9. Coolant Lines
10. Bolt
    • Tightening specification -item 15- OVERVIEW - COOLANT PIPES => List Item:Bolt .
11. Banjo Bolt
    • Tightening specification -item 16- OVERVIEW - COOLANT PIPES => List Item:Banjo Bolt .
12. Seals
    • Replace
13. Bolt
    • 23 Nm
14. Engine Lifting Eye
15. Bolt
    • Loosening sequence, refer to Removing 
    • Replace
    • Tightening specification and sequence, refer to Cylinder Head - Tightening Specification and Sequence .

Fig 2: Checking Cylinder Head Distortion

Courtesy of AUDI OF AMERICA, LLC

-- Check the cylinder head at several locations for distortion using a Straight Edge - 500 mm VAS 6075 and a feeler gauge.

• Maximum permissible distortion: 0.1 mm.

Fig 3: Cylinder Head Seal Identification

Courtesy of AUDI OF AMERICA, LLC

1. Part Number
2. Holes