Intake and exhaust manifolds (Renault Espace III)

Notes:

• Replacing the manifold gasket with a new one requires removing both manifolds. Removal is performed from the bottom of the car.
• It is possible to remove only one exhaust manifold, however, it is not possible to remove the intake manifold without removing the exhaust manifold.

Removal the intake manifold

• Disconnect the cable from the negative battery terminal.
• Remove the air filter, unscrew the 4 bolts and remove the throttle assembly (fig. 1.31).
• Disconnect the accelerator cable
• Disconnect the exhaust gas recirculation hoses and the throttle body heating hoses, having first clamped the cooling system hoses using clamps Mot. 453-01.
• Disconnect the connectors from the idle air control valve, fuel injectors, air temperature sensor and move the wiring harness back.
• Disconnect the fuel supply and return lines from the fuel distribution line and the vacuum channel from the pressure regulator.
• From underneath the vehicle, remove the right drive shaft.

Removal the exhaust manifold

• From underneath the vehicle, remove the right drive shaft, exhaust pipe, the reinforcing brace between the manifold and cylinder block, the starter heat shield and the torque rod (Fig. 1.33).

Fig. 1.33. Location of the bolts for fastening the reaction rod

• Next, if only the exhaust manifold is being removed, unscrew all the intake/exhaust manifold mounting nuts from underneath the vehicle, including the two side ones (B, Fig. 1.34). fastening only the exhaust manifold.

Fig. 1.34. Location of intake/exhaust manifold mounting nuts:B - side nuts securing only the exhaust manifold

• Remove the exhaust manifold from the underside of the vehicle.
• The intake manifold is removed from the underside of the vehicle after the exhaust manifold has been removed.
• The manifold gasket must be installed with the metal surface facing the manifolds.