14-500 Operation of EGR   Description of operation   To reduce the forming of nitric oxides (NOX) a portion of the exhaust gases is recirculated out of exhaust manifold by way of a valve into…

    14-475 Testing EGR   Special tool   Vaccum tester 116 589 25 21 00   Conventional tool   Revolution counter   Testing EGR 1 Pull vacuum line from EGR valve (60), plug-on test hose and…

    14-472 Survey exhaust manifold   A. Lefthand steering Engine 110.984   Engine 110.987   Engine 110.988   14.2 Mb—472/1 F2       Engine 110.989   Engine 110.990   (7) model year 1982 Engine 110.988…

    14—470 Removal and installation of exhaust manifold   Note Starting with increased output, the cross section of the exhaust manifold has been slightly enlarged and the connection for the exhaust pipes was changed to outer…

    14—455 Renewing intake manifold (intake manifold removed)   Renewing   1    Remove and install intake manifold (09—400). 2   Remove and install mixture controller with air guide housing (07.3-230). 3   Unscrew all unscrewable parts on…

    14-450 Removal and installation of intake manifold, replacement of gasket   Note   When removing and installing intake manifold, the mixture controller with air guide housing need not be removed.   Layout and shape of…

    14—300 Removal and installation of anti-backfire valve   Federal and California version model year 1977/78/79   Removal 1    Pull blue/purple vacuum line from anti-backfire valve. 2    Set hose clamps (arrows) back for approx.…

    14-250 Removal and installation of air pump   Federal and California version model year 1977/78/79   Removal 1    Loosen fastening screw (1) and screw out. 2   Swivel air pump inwards and remove V-belt.  …

    14-200 Removal and installation of catalyst   Model year 1977/78/79 A. Federal version   Removal 1 Loosen nuts of flange connections on exhaust manifold and unscrew.   2 Remove heat shields.   14.2-200/1 USA 1977/78/79…

    14—100 Test program   Model year 1977/78/79   A. Federal version, tourist vehicles Federal version   For complaints such as: Poor warming-up characteristics of engine, poor idle speed, engine not accelerating or splashing during acceleration,…