Coolant Thermostat: Removing

-- Drain the coolant. Refer to COOLANT, DRAINING AND FILLING .

-- Remove the cover for the intake air duct; disengage the side clips -arrows- to do so.

Fig 1: Air Duct Cover Slide Clips

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-- Unclip the lower intake air duct, disengage the clips -arrows- to do so.

Fig 2: Identifying Lower Air Guide Clips

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-- Remove both the lower intake air duct and the intake air duct tube.

-- Loosen the hose clamp -2-.

Fig 3: Air Guide Hose Bolts, Air Guide Pipe Hose Clamps & Electrical Harness Connector

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-- Remove the bolt -4-.

-- Disconnect electrical connector -arrow-.

-- Remove the bolt -1- and remove the charge air pipe downward.

-- Free up the coolant hose -2- and electrical wiring harness -1-.

Fig 4: Electrical Wiring Harness, Coolant Hose And Bolt

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-- Remove the bolt -arrow- and remove the bracket.

-- Remove the after-run coolant pump bracket bolt -2-.

Fig 5: After-Run Coolant Pump V51 Bracket Bolt

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-- Remove the coolant hoses -1 and 2- and lay them to the side.

Fig 6: Coolant Hoses

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-- Loosen the nut -2-, remove the bolt -1- and move the support for the intake manifold to the right.

Fig 7: Identifying Intake Manifold Support, Nut And Bolt

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-- Remove the oil separator. Refer to OIL SEPARATOR .

-- Remove the bolts -arrows- and remove the connecting piece. For the right bolt, the hex ball socket T10058 is useful.

Fig 8: Coolant Thermostat Housing Bolts

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-- Remove the coolant thermostat.