Control Module And Hydraulic Unit, Removing And Installing, LHD, Bi-Turbo Diesel Engine: Removing

WARNING: This page is about a different car, the 2021 Volkswagen Tiguan, 2020 Volkswagen Tiguan, 2019 Volkswagen Tiguan, and 2018 Volkswagen Tiguan. However, it is still accessible from the selected car via links, so may be relevant.

Component Location:

The control module is bolted to the hydraulic unit -1- and is located in the engine compartment on the right side.

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CAUTION:

Risk of destroying the brake lines by bending.

- Never forcefully bend the brake lines in the hydraulic unit area.

-- Read and note the present control module code.

-- On vehicles with a coded radio, note the code. Retrieve it if necessary.

-- Disconnect the battery. Refer to OVERVIEW - NOISE INSULATION .

-- Remove the engine cover. Refer to ENGINE COVER, REMOVING AND INSTALLING .

-- Remove the noise insulation. Refer to OVERVIEW - NOISE INSULATION .

-- Release and remove the connector -1- for the Oil Level Thermal Sensor -G266-.

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-- Release and remove the connector -2- from the Heater Support Pump -V488-.

-- To do so, open the catch -3- in the -direction of the arrow- and release the connector.

-- Remove the front exhaust pipe. Refer to EXHAUST TEMPERATURE REGULATION COMPONENTS, REMOVING AND INSTALLING .

-- Remove the pendulum support. Refer to PENDULUM SUPPORT, REMOVING AND INSTALLING .

-- Remove the driveshaft on the front bevel box and then move it to the side. Refer to OVERVIEW - DRIVESHAFT / DRIVESHAFT, REMOVING AND INSTALLING .

-- Position the Engine Support:T10533 -A- as shown.

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-- Position the Engine Support:T10533/2 -B- on the flat threaded connection point of the Engine Support:T10533/1 .

-- Install the original bolt of the pendulum support -1- in the front threaded hole of the pendulum support.

-- Install a M8 x 60 mm bolt -2- with a washer in the left threaded hole of the noise insulation.

-- Establish a distance of 20 mm -a- between the threaded connection height and the subframe using washers.

-- Tighten the bolts hand-tight.

-- Push the engine with the Engine Support:T10533 as far forward as possible.

-- Unclip the reducing agent delivery line -2- on the coolant expansion tank and on the toothed belt guard -B arrows-.

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-- Open the couplings -A- and -B- and remove the fuel lines. Disconnect the couplings. Refer to CONNECTOR COUPLINGS, DISCONNECTING .

Fig 1: Identifying Fuel Line Couplers

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CAUTION:

The fuel system is under pressure.

Risk of injury from fuel spraying out.

- Wear protective eyewear.

- Wear safety gloves.

- Reduce the pressure: place clean cloths around the connection point and carefully open the connection point.

-- Unlock and disconnect the connector -2- on the coolant reservoir.

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-- Unclip, disconnect and remove the connector -4-.

-- Unclip the bracket for the fuel lines from the coolant expansion tank -arrow-.

-- Release the catches with a screwdriver -6-.

-- Lay the coolant reservoir -1- on the engine.

-- Remove the fuel filter and place it with the fuel hoses connected on the engine. Refer to FUEL FILTER .

-- Remove the Exhaust Gas Temperature Sensor 3 -G495-. Refer to EXHAUST TEMPERATURE REGULATION COMPONENTS, REMOVING AND INSTALLING or appropriate service information .

-- For vehicles with a heat shield, remove the heat shield -1-.

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-- Unclip the wiring guide.

-- Press the locking mechanism downward -arrow A-.

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-- Release the connector -arrow B-.

-- Remove the connector -1-.

-- Insert the Brake Pedal Actuator:VAG1869/2 .

Fig 2: Identifying Brake Pedal Depressor V.A.G 1869/2

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-- Attach the bleeder bottle bleed hose -1- to the left front brake caliper breather valve.

Fig 3: Identifying Bleed Valve

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-- Open the breather valve.

-- Attach the bleeder bottle bleed hose -1- to the left rear brake caliper breather valve.

Fig 4: Identifying V.A.G 1869/2

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-- Open the breather valve.

-- Push the brake pedal at least 60 mm using the Brake Pedal Actuator:VAG1869/2 .

-- Close the left front and left rear bleeder valves.

-- Do not remove the Brake Pedal Actuator:VAG1869/2 .

-- Place enough lint-free cloths under the control module and hydraulic unit.

NOTE:

Make sure no brake fluid gets on the contacts.

-- First mark both brake lines of the brake master cylinder -5- and -6- and remove them from the hydraulic unit.

Fig 5: Brake Lines, Attaching To Hydraulic Unit Sequence

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-- Remove both brake lines -5- and -6- from the brake master cylinder. Refer to BRAKE MASTER CYLINDER, REMOVING AND INSTALLING, LHD BI-TURBO DIESEL ENGINE .

-- Unclip the brake lines from the brake lines as far as possible.

-- Immediately seal the threaded holes with the plugs from the assembly repair kit 5Q0 698 311.

-- Mark the remaining brake lines (brake calipers), remove them and seal off the threaded holes.

-- Remove the right front brake line -3-.

-- Place the dust caps for the bleeder valves on the brake lines.

-- Pull the hydraulic unit with the control module upward out of the shock absorbers -arrow-.

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-- Remove the bracket in the vehicle from the hydraulic unit -arrows-.

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-- Guide out the hydraulic unit downward out of the vehicle.