Removing Upper Chain Housing Cover (V6 Turbo)
WARNING: This page is about a different variant/trim than selected.
WARNING:
Highly inflammable or explosive materials
- Danger of fire or explosion
- → Avoid contact with hot parts or sources of ignition.
- → Use suction to remove ignitable vapours.
- → Attach warning sign in a clearly visible position.
- → Contain leaked media using non-flammable absorbent material and put it in a container designed for this purpose for disposal in accordance with local requirements.
- → Secure collection containers/vessels to prevent them from tipping over.
WARNING:
Toxic substances
- Danger of poisoning or suffocation
- Danger of burns to the eyes and skin
- → Ventilate the work area well.
- → Never ingest or inhale.
- → Read specific information on the Hazard Sheet.
- → Wear personal protective gear.
- → Do not smoke, eat or drink in the work area.
- Only for removing upper chain housing cover on left cylinder bank:
Remove coolant pipe for left cylinder bank -3- .
- 1.1 Unscrew screws for coolant pipe -1 and 2- .
- 1.2 Remove coolant pipe -3- and close off line connections using stoppers.
Coolant pipe on left cylinder bank
- Only for removing upper chain housing cover on right cylinder bank:
Remove coolant pipe -3- for right cylinder bank.
- 2.1 Unscrew screw on coolant pipe holder -1- .
- 2.2 Unscrew screw for coolant pipe flange -4- on the cylinder head.
- 2.3 Remove coolant pipe -3- with holder -2- .
- 2.4 Close off line connections with stoppers.
Coolant pipe on right cylinder bank
- Remove fuel high-pressure line -1-
.
- 3.1 Unscrew screws on fuel high-pressure line holder -2- .
- 3.1.1 Replace screws.
- 3.2
Unscrew union nuts on line connections -3-
.
- 3.2.1 Collect escaping fuel.
- 3.2.2 Close off connections with stoppers.
- 3.3 Guide out fuel high-pressure line -1- .
Fuel high-pressure line
Information
The following steps are shown only on one side of the vehicle. They also apply for the other side.
- Detach upper chain housing cover.
- 4.1 Release and disconnect cable plugs for camshaft controller actuators -9- .
- 4.2 Unclip retaining clips -10 and 11- and move electric lines aside.
- 4.3 Unscrew screws on upper chain housing cover -1 to 8- .
Upper chain housing cover
- Loosen upper chain housing cover -1-
from the bonding.
- 5.1 Secure upper chain housing cover -1- to prevent it from falling down.
- 5.2
Carefully heat sealing faces on upper chain housing cover -1-
using a hot-air gun.
Make sure not to damage any add-on parts with hot air!
- 5.3 Carefully insert a suitable tool at the press-off tabs -Arrows- on the upper chain housing cover -1- .
- 5.4
Carefully lever upper chain housing cover -1-
off the cylinder head.
Information
- Sealing faces must be cleaned to remove all residual sealant.
- Sealing faces must be free of grease and oil.
- Sealing faces must be cleaned with primer Loctite 7515.
- 5.5 Carefully clean sealing faces on upper chain housing cover.
Removing upper chain housing cover