Diesel engine cooling system VW Transporter T3

Description of the design of the engine cooling system
Attention! In models up to 3.85, the cooling pipes are partially made of steel. If they rust, they should be checked in the workshop for plastic. (1) cooling pump. (2) Preheating...

Cooling system hose connection diagram
Note: Arrows show the direction of passage. (1) expansion tank. (2) top-up tank. (3) Cylinder head flange. (4) cooling pump with regulator. (5) circulation pump. (6) oil radiator....

Antifreeze — General Information
Attention! Antifreeze G11 protects the coolant from freezing, reduces corrosion and limescale deposits and, in addition, increases the boiling point of water. Other concentrates...

Replacing the coolant
The coolant is replaced only after repair of the cooling system, during which the coolant is drained. If during repair, the cylinder head, its gasket, radiator, heat exchanger or...

Radiator — design description
1) 1st stage fan thermostat, switch-on temperature 92-98 degrees, switch-off temperature 88-93 degrees. 2) 2nd stage fan thermostat, switch-on temperature 100-105 degrees,...

Removal and installation a radiator
Dismantling Remove the radiator grille by placing 5 slotted head screws in a vertical position and removing the grille, drain the coolant and assemble it. Disconnect the lower...

Removal and installation the regulator valve
Dismantling Drain and collect the water. Unscrew the cover on the side of the cooling pump and remove the control valve. Installation Replace the seal, install the regulator, fill...

Checking the regulator valve
If the regulator valve does not open, the engine may overheat. If the thermostat is constantly open, the engine cannot reach its operating temperature. Drain the coolant. Remove...

Removal and installation of the cooling pump
Dismantling Drain and assemble the coolant. Remove the cooling pump V-belt. Remove the generator, see. " Dismantling and installation of the generator ". Remove the generator...

Removal and installation the temperature gauge sensor
The sensor is located on the flange above the flywheel, see also Fig. 19-212. Disconnect the battery from ground. Remove the cable from the sensor, unscrew the sensor. When...

Installing and dismantling the fan thermostat and checking it
The radiator contains two thermostats that control the electric fan. Thermostat 1 is located at the top, thermostat 2 at the bottom. Thermostat 1 turns on at a temperature of...

Removal and installation the V-belt of the cooling pump, tensioning the belt
Dismantling Remove the 3 bolts on the cooling pump belt pulley. Remove the pulley halves and the V-belt. To prevent the pulley from rotating when loosening the bolts, insert and...

Cooling system circulation pump
The turbodiesel cooling system includes an additional (see arrow) circulation pump. (19-406) the pump turns on after the engine is turned off and the coolant temperature is above...

Engine cooling system 1.7 liters
There is a hole on the end face of the 1.7L engine cylinder head, and the injector bracket, screwed to the block, has a protrusion at this point, see arrows. Due to this, water,...

Cooling system fault table
Cooling system fault table Malfunction: The temperature gauge warning light flashes when the engine is overheated.

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Transporter T4 Transporter T3