Power supply and fuel injection system Mercedes S-Class (W140)

Power and exhaust system specifications
Note: Individual characteristics are also given in the text of the Chapter and, if their implementation is mandatory, are highlighted in bold. Fuel grades Petrol models...

Fuel injection and fuel supply system of a gasoline engine — general information
General information The fuel system consists of: installed in the rear of the vehicle (under the rear seat cushion) fuel tank with activated carbon adsorber, fuel lines,...

Safety precautions and rules for maintaining cleanliness when working with the fuel system
When working with the fuel system, the following safety and cleanliness measures must be observed: Do not use open fire near the workplace, do not smoke or hold any very...

Relieving pressure in the fuel system of a gasoline engine
Note: Before you begin, read the safety precautions in Section Safety precautions and rules for maintaining cleanliness when working with the fuel system Caution!...

Checking and adjusting idle speed/ignition timing/CO concentration
As part of maintenance, adjustment of idle speed, ignition timing and CO concentration is not required, since these parameters are set by the control system depending on...

Diesel Engine Fuel Injection System — General Information
General information The fuel system consists of: installed in the rear of the vehicle (under the rear seat cushion) fuel tank, fuel filter, injectors, fuel lines and...

Fuel injection system checks (diesel)
Note: Before you begin, read the safety precautions in Section Safety precautions and rules for maintaining cleanliness when working with the fuel system . If you detect...

Emission Control Systems — General Information
Petrol models All petrol models must use unleaded petrol in their fuel systems. The engine management system is designed to provide maximum engine performance with...

Exhaust system — general information
Typical design of the exhaust system (using the example of models with the M119 series engine) G3/4 - Right pre-catalytic lambda probe; G3/4x1 - Contact connector for...

Catalytic converter (petrol models)
The catalytic converter has a central ceramic part of a honeycomb structure (3) covered with a carrier layer. On the carrier layer are salts of noble metals acting as...

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W140 (1991-1998)