1 — the top casing of a gear belt
2 - main toothed belt
3 - connecting toothed belt
4 — bolt, 10 Nm + 90° (¼ turn) in tightening direction
Always replace the bolt with a new one.
Tighten in sequence from outside to inside.
5 - high voltage wire guide, 5 Nm
Only for AUA/AUB engine.
6 - connecting hose
Only for BBY/BBZ engine.
7 - bolts, 10 Nm
8 - check valve
Only for BBY/BBZ engine.
9 - hose to the air filter
Only for BBY/BBZ engine.
10 - camshaft housing
Remove any old sealant.
Apply sealant VW-D188003A1 before installation, see figure N15-0075 below. When installing, carefully move vertically from top to bottom on the studs and guide pins.
11 - bracket
12 - guide pins
13 - pressure lever with roller
Check the roller bearing for ease of movement. Lubricate the work surface. During installation, fasten to the compensation support using a retaining clip.
14 - support element
Do not swap during installation.
With hydraulic gap compensator in the valve drive. Lubricate the work surface.
15 — a bolt of fastening of a head of cylinders
Always replace the bolt with a new one.
Tighten the cylinder head bolts in three steps. In each step, tighten the bolts in sequence from 1 to 10.
Reception 1: 30 Nm
Reception 2: tighten in the tightening direction by 90 (¼ turn)
Reception 3: tighten in the tightening direction by 90 (¼ turn)
16 — a sealing lining of a head of cylinders
Always replace with a new one. After replacement, change all coolant.
17 - cylinder head
18 - tension roller of the connecting toothed belt
19 - bolt, 20 Nm
20 — the bottom casing of a gear belt
21 - eye
Sealing surface of the camshaft housing
Apply the sealant thinly and evenly to the clean sealing surface of the camshaft housing (highlighted in gray). Attention: If the sealant is applied in a thick layer, it will get into the oil channels, as a result of which the engine will be damaged.
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