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Home >> Volkswagen >> 2004 >> GTI Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (2.5L - Cooling System - Engine Code(S): BGP, BGQ, CBTA & CBUA (Sedan) (A5 Platform)) >> 19 Cooling System >> Removal And Installation >> Coolant Pump

Coolant Pump

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Special tools and workshop equipment required 

CAUTION:

When doing any repair work, especially in the engine compartment, pay attention to the following due to clearance issues:

  • Route lines of all types (for example, fuel, hydraulic, Evaporative Emission (EVAP), coolant and refrigerant, brake fluid and vacuum) and electrical wiring so that the original path is followed.
  • To prevent damage to the lines, make sure there is sufficient clearance to all moving or hot components.

Removing 

-- Remove the engine cover with air filter. Refer to ENGINE COVER WITH AIR FILTER .

-- Remove the battery. Refer to Removal and Installation .

-- Open the cover -1- for the E-box and remove the wire -2-.

Fig 1: Identifying Cover Of E-Box, Wire & Bolts
GWWM47-0088Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the bolts -arrows- and remove the battery tray from the vehicle.

WARNING:

Hot steam may escape when opening the expansion tank cap.

  • Wear protective goggles and protective clothing to prevent damage to eyes and scalding.
  • Cover the cap with a cloth and open very carefully.

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

-- Remove the air guide bolts -arrows- from the lock carrier.

Fig 2: Identifying Bolts And Air Guide On Lock Carrier
GWWM19-0193Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the connecting pipe -4-. To do so, disconnect the pressure and vent tubes -1 and 2- (compress the securing ring) and remove the spring clamp -3-.

Fig 3: Identifying Air Hoses And Are Fitted Securely
GWWM24-0515Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove front and rear sections of the right front wheel housing liner. Refer to Removal and Installation .

-- Remove the generator and coolant pump ribbed belt. Refer to RIBBED BELT .

-- Remove the 4 exhaust manifold to front exhaust pipe nuts -2- and the exhaust system suspended mount bolts -3-.

Fig 4: Identifying Nuts, Bolts & Front Exhaust Pipe
GWWM26-0173Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the exhaust pipe -1- from the manifold and secure it to the side. Refer to FRONT EXHAUST PIPE WITH CATALYTIC CONVERTER .

NOTE:

The flex joint in the front exhaust pipe must not be bent more than 10 °, otherwise it may be damaged.

-- Remove the pendulum support. Refer to Description and Operation .

Vehicles with a Manual Transmission:

-- Remove the shift mechanism from the transmission. Refer to SHIFT MECHANISM .

Vehicles with a Automatic Transmission:

-- Remove the selector lever cable from the transmission. Refer to SELECTOR HANDLE .

Continuation for all Vehicles:

-- Install the engine support bridge 10-222 A with the engine support feet 10-222 A/8 and support the engine/transmission in its installed position using the engine support adapter 10-222 A/3 and the shackle 10-222 A/12.

Fig 5: Identifying Engine Support Bridge 10-222A Installed With Adapters 10-222A/8 To Support Engine/Transmission Assembly
GWWM19-0196Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
NOTE:

Illustration shows the arrangement with a automatic transmission.

In vehicles with a manual transmission, the spindle -A- is to be located toward the rear and secured to reinforcement brace of the transmission.

-- Remove the bolt -2- and place the windshield washer reservoir -1- toward the front.

Fig 6: Identifying Bolt, Windshield Washer Reservoir & Connectors
GWWM10-0045Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Remove the bolts -6- and disconnect the connector -3-.

-- Remove the bolts -5- and set the coolant expansion tank with hoses connected onto the engine.

-- Remove the bolts -1, 2 and 3- and remove the engine mount.

Fig 7: Identifying Engine Mount Bolts
GWWM10-0046Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
NOTE:

The rear bolt -2- is accessible through a hole in the wheel housing.

-- Remove the transmission mount to transmission mount bracket bolts -arrows-.

Fig 8: Identifying Left Subframe Mount
GWWN34-1846Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Slide the engine forward and to the left as far possible.

-- Remove the 3 coolant pump bolts and swivel the coolant pump -A- out as shown, refer to "Bolt" in item:  23.

Fig 9: Identifying Coolant Pump
GWWM19-0190Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

Installing 

Installation is performed in the reverse order of removal. When doing this note the following:

Tightening Specifications 

Component Nm
Engine/transmission mount Refer to TIGHTENING SPECIFICATIONS .
Coolant pump to cylinder block 10