| The system consists of an oil separator | | | | cover, idle speed air |
| located under valve cover valve cover | | | | distributor,coolant lines and connecting |
| gasket number 103 016 04 21 for | | | | hoses, idle speed air line.When the |
| replacment, distribution tube on intake | | | | engine is operating under high intake |
| manifold, and return flow tube. | | | | manifold vacuum, blow-by gases flow out |
| California models are equipped with a | | | | of the valve cover, through the by-pass |
| diaphragm regulating valve located in | | | | bore in the idle speed air distributor, |
| the oil separator.When the engine is | | | | and into the intake manifold idle speed |
| running, blow-by gases flow through the | | | | air passage. A small amount of filtered |
| oil separator, and to the distribution | | | | air is drawn into system through the |
| tube on the intake manifold, through a | | | | by-pass hole.When the engine is |
| connecting hose. Oil from the separator | | | | operating at low or no intake manifold |
| returns to the cylinder head through the | | | | vacuum, blow-by gases flow into the air |
| return flow tube.On Mercedes Bens | | | | cleaner where they are mixed with |
| California models, the diaphragm | | | | filtered air before burning.If needed |
| regulating valve is used to prevent | | | | replace the air filter number 003 094 |
| excessive vacuum from forming in | | | | 54 04.To ensure against vent line |
| crankcase.The system consists of an oil | | | | freezing, coolant is routed to vent line |
| separator located in the valve cover, | | | | from cylinder head. Coolant returns to |
| idle speed air distributor 000 141 22 | | | | water pump through coolant return |
| 25, and a connecting hose.When the | | | | line..The system consists of a fresh air |
| engine is operating under high intake | | | | hose from air cleaner to right cylinder |
| manifold vacuum, blow-by gases flow out | | | | head cover, a breather hose from left |
| of the valve cover, through the by-pass | | | | cylinder head cover hose number 103 094 |
| bore in the idle speed air distributor | | | | 10 82, an orifice, and a connection to |
| 000 141 22 25, and into the intake | | | | intake system.During idle or low speed |
| manifold idle speed air passage. A small | | | | operation, vapors are drawn through the |
| amount of filtered air is drawn into | | | | orifice, into the idle air distribution |
| system through the by-pass hole.When the | | | | tubes, then into the intake manifold. |
| engine is operating at low or no intake | | | | Fresh air to vent the engine comes |
| manifold vacuum, blow-by gases flow into | | | | through the air cleaner and right |
| the air cleaner where they are mixed | | | | cylinder head cover hose. During high |
| with filtered air before burning. Make | | | | speed operation the vapors are drawn in |
| sure you always check your engine | | | | through the air cleaner and burned.The |
| maintanance guide.Fig. 2: Crankcase | | | | crankcase ventilation system is |
| Ventilation System (190E 2.3) | | | | maintenance free, but hoses should be |
| 190E 2.3-16The system consists of an | | | | checked to ensure that they are not |
| oil separator located in the valve | | | | cracked and are free of obstructions.. |