Removal and installation the cylinder head (6-, 8-cylinder) (Audi A4 B6)

Table of contents: Removal ↓ Installation ↓

Cylinder head. Petrol engine 3.0 l ASN

1 - Cylinder head gasket. The number should be facing the cylinder head
2 — Cylinder head. Minimum height: 139.25 mm
3 — Eye
4 - Bolt, 23 Nm
5 — Cylinder head mounting bolt
6 — Intake manifold centering pin
7 - Special screw, 10 Nm
8 — Seal. Replace if damaged or leaking
9 — Lid
10 — O-ring. Be sure to replace it
11 — Crankcase ventilation hose
12 — Ignition coil
13 — Cylinder head cover
14 — Cylinder head cover gasket. Replace if damaged or leaking
15 - Screw, 10 Nm
16 — Rear coolant pipe
17 — Secondary air supply combination valve
18 - Screw, 10 Nm
19 - Seal. Be sure to replace
20 — Sealing ring

Cylinder head (the right one is shown). Petrol engine 4.2 l VVK

1 — Cylinder head gasket. Installation position: The spare part number should point toward the cylinder head. After replacing the gasket, the coolant must be replaced
2 — Eye
3 - Bolt, 22 Nm
4 — Seal. Replace if damaged or leaking
5 — Cylinder head cover gasket. Replace if damaged or leaking
6 — Cylinder head cover
7 — Ignition coil. Removal requires the AUDI T40039 puller
8 - Special screw, 10 Nm. If there is damage or leakage, replace. Tighten in sequence from inside to outside
9 — Cylinder head cover seals. Replace if damaged or leaking
10 — Cylinder head cover seal. Replace if damaged or leaking
11 — Semi-circular seal. If damaged or leaking, replace
12 — Cylinder head mounting bolt
13 — Cylinder head. After replacement, it is necessary to replace the coolant

Removal

1. The sequence of unscrewing the bolts is the reverse of that shown in the accompanying illustration: from 8 to 1.

Engine 3.0 l

Engine 4.2 l

Installation

1. Before installing the cylinder head, turn the crankshaft and camshaft to the TDC position of the piston of the third cylinder.

2. Tighten the cylinder head mounting bolts in the sequence shown in Specifications efforts.