Left and Right Timing Chain Covers, Removing and Installing

WARNING: This page is about a different car, the 2009 Audi S8, 2008 Audi S8, and 2007 Audi S8. However, it is still accessible from the selected car via links, so may be relevant.

Special tools, testers and auxiliary items required

Fig 1: Hose Clamp Pliers V.A.G 1921

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Hose clamp pliers V.A.G 1921
Hand drill with plastic brush attachment
Protective glasses
Sealant

Removing

NOTE:

During installation, reinstall all heat insulation sleeves and heat shields at the same locations.
All cable ties opened or cut during engine removal must be reinstalled at the same locations during installation.

Remove engine → Engine, Removing .
Leave engine with transmission installed on the scissor lift platform VAS 6131 A.

Fig 2: Removing Bolts, Oil Dipstick Guide Tube Upward & Loosening Hose Clamps And Removing Left Coolant Pipe From Coolant Hoses

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - 2 - and - 3 -.
Pull oil dipstick guide tube upward and off - arrow -.
Loosen hose clamps - 1 - and - 4 - and remove left coolant pipe from coolant hoses.

Fig 3: Bolts, Hose Clamps, Right Coolant Pipe From Coolant Hoses & Coolant Hoses

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove bolts - 2 - and - 3 -.
Loosen hose clamps - 1, 4, 5 - and remove right coolant pipe from coolant hoses.

Fig 4: Identifying Nuts, Bolts, Electrical Connector On Engine Coolant Temperature (ECT) Sensor G62 & Coolant Hose

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove nuts - 2 - and - 4 - and remove connector bracket from rear coolant pipe.
Free up engine wiring harness on rear coolant pipe.
Disconnect electrical connector - 3 - on Engine Coolant Temperature (ECT) Sensor G62.
Disconnect coolant hose - 5 - from rear coolant pipe.

Remove screws - 1 - and - 6 - and remove rear coolant pipe.

Fig 5: Identifying Left Timing Chain Cover And Tighten/Removing Bolts Sequence

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove screws - 1 to 8 - and remove left timing chain cover.

Fig 6: Identifying Right Timing Chain Cover And Tighten/Removing Bolts Sequence

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove screws - 1 to 8 - and remove right timing chain cover.

Installing

NOTE:

Replace O-rings.
Secure all hose connections with hose clamps appropriate for the model .
During installation, reinstall all heat insulation sleeves and heat shields at the same locations.
During installation, all cable ties must be re-installed at the same location.

CAUTION: Wear safety glasses.

Fig 7: Removing Sealant Residue On Timing Chain Covers And Cylinder Head With Rotating Plastic Brush

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Remove sealant residue on timing chain covers and cylinder head, e.g. with a rotating plastic brush.

CAUTION: Make sure that no sealant residue enters the engine.

Clean sealing surfaces, they must be free of oil and grease.

Fig 8: Cutting Tube Nozzle At Front Marking

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Cut off nozzle on the tube of sealant at the front mark (diameter of nozzle approximately 2 mm).

Fig 9: Identifying Timing Chain Cover, Coolant Intermediate Pipe, O-Rings, And Sealant Bead

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Drive left coolant intermediate pipe - 2 - out of left timing chain cover with a suitable drift.
Replace O-rings - 1 - at coolant intermediate pipe - 2 -.
Insert coolant intermediate pipe in left timing chain cover.
Apply sealant bead - arrow - on clean sealing surfaces of left timing chain cover, as shown in illustration.

Thickness of sealant bead: 2.5 mm.

NOTE:

Covers for timing chain must be installed within 5 minutes after applying sealant.

Fig 10: Identifying Left Timing Chain Cover And Tighten/Removing Bolts Sequence

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Position left timing chain cover and tighten screws in sequence - 1 to 8 -.

Fig 11: Identifying Timing Chain Cover, Coolant Intermediate Pipe, O-Rings, And Sealant Bead

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Drive right coolant intermediate pipe - 2 - out of right timing chain cover with a suitable drift.
Replace O-rings - 1 - at coolant intermediate pipe - 2 -.
Insert coolant intermediate pipe in right timing chain cover.
Apply sealant bead - arrows - on clean sealing surfaces of right timing chain cover, as shown in illustration.

Thickness of sealant bead: 2.5 mm.

Fig 12: Identifying Right Timing Chain Cover And Tighten/Removing Bolts Sequence

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Position right timing chain cover and tighten screws in sequence - 1 to 8 -.

The rest of installation is in reverse order of removal, note the following:

Install rear coolant pipe → Rear Coolant Pipe, Removing and Installing .
Install left coolant pipe → Left Coolant Pipe, Removing and Installing .
Install right coolant pipe → Right Coolant Pipe, Removing and Installing .
Install engine → Engine, Installing .

Tightening specifications

Component	Nm
Left and right timing chain covers on engine	9