Contents: Removal ↓ Installation ↓
Recommendation: The throttle assembly can be removed without draining the coolant. This will require two M10 bolts as plugs.
Warning: Work should only be performed after the engine has cooled to a safe temperature (not higher than 45°C).
Removal
1. We are preparing the vehicle for repairs (see point 2a "Preparing a car for maintenance and repair").
2. Remove the wire terminal from the negative terminal of the battery (see point 2 "Battery - Removal and Installation").
3. Remove the decorative engine cover (see "Engine trim - removal and installation").
4. By unscrewing the expansion tank cap, we release excess pressure from the engine cooling system.
5. Remove the air supply hose to the throttle valve.
6. Disconnect the throttle drive cable from the sector (see points 3 and 4 "Throttle - Drive Cable Replacement")
7. Disconnect the wire connector from the TPS (throttle position sensor).
8. Disconnect the wire connector from the idle speed controller (see points 2 and 3 "Idle speed control (ISC) - checking and replacement").
9. Using a Phillips screwdriver, loosen the clamps securing the crankcase ventilation hose, two coolant supply hoses...
...and the adsorber hose.
10. Remove the crankcase ventilation hose from the throttle body fitting.
11. Disconnect the adsorber hose from the throttle assembly.
12. Using a 13 mm wrench, unscrew the two nuts securing the throttle assembly to the intake module flange.
13. Remove the throttle assembly from the studs and lift it above the expansion tank of the cooling system.
14. Holding the throttle assembly in a raised position, remove the coolant supply hoses from the throttle body fittings.
15. Insert M10 bolts into the hoses. To prevent them from falling out, tighten the hose clamps.
Installation
We install the throttle assembly and all removed parts on the car in the reverse order.