A6 Quattro Sedan V8-4.2L (BVJ) (2007)
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Replace O-rings - 1 - at coolant intermediate pipe - 2 -.
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Insert coolant intermediate pipe in right timing chain cover.
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Apply sealant bead - arrows - on clean sealing surfaces of right timing chain cover, as shown in illustration.
‹› Thickness of sealant bead: 2.5 mm.
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Position right timing chain cover and tighten bolts => [ Right timing chain cover, tightening sequence ] See: Timing Chain Covers Assembly
Overview
The rest of installation is in reverse order of removal, note the following:
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Install rear coolant pipe => [ Rear Coolant Line ] See: Cooling System/Coolant Line/Hose/Service and Repair/Rear Coolant Line.
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Install secondary air injection combination valve: Left => [ Left Secondary Air Injection Combination Valve ] See: Powertrain
Management/Emission Control Systems/Air Injection/Air Injection Control Valve/Service and Repair/Left Secondary Air Injection Combination
Valve, right => [ Right Secondary Air Injection Combination Valve ] See: Powertrain Management/Emission Control Systems/Air Injection/Air
Injection Control Valve/Service and Repair/Right Secondary Air Injection Combination Valve.