Tip: The throttle body can be removed without draining the coolant. This will require two M12 bolts of any length.
Warning! Work should only be started after the engine has cooled to a safe temperature (not higher than 45°C).
Removal
1. Prepare the car for repairs (see "Preparing the car for maintenance and repair").
2. Remove the decorative trim (see "Engine trim panel - removal and installation").
3. By unscrewing the expansion tank cap, we release excess pressure from the engine cooling system.
4. Remove the air supply hose to the throttle valve (see "Throttle valve - drive adjustment").
5. Disconnect the wiring harness connector from the throttle position sensor (see "Throttle Position Sensor - Checking and Replacing").
6. Disconnect the wiring harness from the idle speed control valve (see "Idle speed control valve - checking and replacing").
7. Using a Phillips screwdriver, loosen the clamps securing the two coolant supply hoses 1, the crankcase ventilation hose 2, and the adsorber hose 3.
8. Disconnect the crankcase ventilation hose and the purge valve hose from the throttle assembly.
9. Disconnect the coolant drain hose from the throttle body. We plug the hose with an M12 bolt.
10. Similarly, disconnect the coolant supply hose from the throttle body.
Recommendation. To prevent the bolts from falling out, tighten the hose clamps.
11. Disconnect the throttle cable from the sector (see "Throttle Cable Replacement").
12. Using a 13 mm socket wrench, unscrew the two nuts securing the throttle assembly to the receiver flange.
13. Remove the throttle assembly from the studs.
We remove the sealing rubber ring from the groove of the receiver flange. We replace the damaged ring.
Installation
We install the throttle assembly in the reverse order.