Removing the engine cover (see Checking the condition and replacing spark plugs).
We disconnect the throttle cable from the plastic sector of the throttle assembly (see Throttle Cable Replacement). Disconnect the air supply hose to the throttle assembly from the air filter pipe (see Removing the air filter).
Using a Phillips screwdriver, loosen the clamp that secures the air supply hose to the throttle assembly nozzle.
We remove the hose from the nozzle of the throttle assembly and take it with the crankcase ventilation hose to the side.
By pressing the latch on the underside of the block of the wiring harness of the engine management system, we disconnect the block from the throttle assembly connector.
Squeezing the ends of the hose clamp for attaching the coolant supply hose to the throttle assembly heating unit with pliers, we move the clamp along the hose..
... and remove the hose from the fitting of the assembly.
To prevent fluid leakage, we insert a plug into the hose hole, for example, an M10 bolt.
Similarly, from the other fitting of the throttle assembly, we remove the coolant outlet hose from the heating unit.
With a "10" head, we unscrew three nuts and one bolt securing the throttle assembly to the intake manifold.
For clarity, the fastening elements of the throttle assembly are shown on the removed intake manifold.
Remove the throttle body from the intake manifold studs.
The connection of the flanges of the inlet pipeline and the throttle assembly is sealed with a rubber ring.
If the ring is damaged in the form of cuts, tears, jams, or the ring has lost its elasticity, it must be replaced.
Install the throttle assembly in reverse order.
We check the level of coolant in the expansion tank of the cooling system and, if necessary, add liquid.