190E 2.3 (201.028) L4-2.3L (102.985) (1987)
Intake Manifold: Service and Repair
1.
Disconnect battery ground cable.
2.
Remove air cleaner assembly, then disconnect all fuel lines from fuel distributor and injectors.
3.
Remove regulator holder, then loosen hose clamp on rubber sleeve between throttle valve housing and air guide housing.
4.
Remove rubber insulator nuts, then disconnect electrical connectors from mixture controller and air guide housing.
5.
Remove mixture controller and air guide housing together with the idle speed air hose.
6.
Disconnect two hoses from idle speed air distributor.
7.
Remove injector holders, then disconnect return spring and linkages from throttle body.
8.
Disconnect all remaining electrical connectors, vacuum lines, coolant lines and linkages from intake manifold.
9.
Remove intake manifold support bracket.
Fig. 2 Intake & exhaust manifold replacement
10.
Remove intake manifold attaching bolts and the manifold, Fig. 2.
11.
Reverse procedure to install.