Description of the design of the cooling system Note (pic. 2.1). The opening pressure of the safety valve in the plug of the expansion tank is 1.2 bar (cork brown). Pic. 2 1. Functional diagram of the cooling system (engines K4M, F4R, F4P - cars with MKL): 1 -...
General Information and Precautions During Cooling System Repair Because cooling systems are designed to operate under pressure, beware of severe burns from liquid ejection. Never remove the expansion tank cap when the engine is hot. When working in the engine compartment, also be...
Filling the system and bleeding Note. The coolant constantly circulates through the heater core, thereby increasing the efficiency of engine cooling. Refueling Be sure to open the air bleed valves. Fill the system with coolant through the expansion...
System leak test Replace expansion tank cap valve with adapter MS 554-01. Connect the MS 554-07 instrument to it. Warm up the engine, then stop it. Pressurize the system. Stop pumping when the pressure is 0.1 bar below the opening...
Checking the opening pressure of the valve If fluid leaks through the expansion tank cap valve, it must be replaced. Fit the MS 554-06 tool to the MS 554-07 pump, then install the valve to be checked on the tool Raise the pressure It should stabilize at the...
Removal and installation of the thermostat (L7X) Removing Place the vehicle on a two post lift. Disconnect the battery. Remove the engine undertray. Drain the coolant by disconnecting the outlet hose from the radiator. Remove the air filter intake duct. Disconnect the...
Removal and installation of a radiator (all engines) Place the car on a two post lift. Disconnect the battery and remove the engine undertray. Drain the coolant by disconnecting the outlet hose from the radiator. Remove: the relay box by depressing the spring clips 1;...
Removal, cleaning and installation of the water pump (F9Q engines) Removing Place the car on a two post lift. Disconnect the battery. Remove the engine undertray. Drain the coolant from the cooling system by disconnecting the outlet hose from the radiator. Remove: drive belt gas...
Removal, cleaning and installation of the water pump (L7X engines) Removing Place the car on a two post lift. Disconnect the battery. Drain the coolant. Disconnect the outlet hose from the radiator. Remove: timing belt; fasteners Mot. 1430 from the front cylinder head. Attention! Bolts...
Removal, cleaning and installation of the water pump (K4M engines) Removing Remove the battery. Disconnect the protection and switching unit 2 at points 1. Move the Protection and Switching Unit aside. Turn out a bolt 3 fastenings of an inlet air line. Drill three non-removable bolts -...
Removal, cleaning and installation of the water pump (G9T engines) Removing Place the car on a two post lift. Disconnect the battery. Remove: upper engine covers; battery; battery shelf. Remove: nuts 1 for the injection computer; nut 2 securing the ECU wiring harness holder. Move back:...
Removal and installation of the inlet pipeline of the water pump (F9Q) Removing Place the car on a two post lift. Disconnect the battery. Remove: upper engine covers; engine undertray protection. Drain the liquid from the engine cooling system. Disconnect the bottom hose between the water...
Removal and installation of the inlet pipeline of the water pump (K4M) Removing Attention! Since cooling systems are designed to operate under pressure, beware of severe burns from hot liquid ejection. Do not remove the expansion tank cap on a hot engine. When working in the engine...
Removal and installation of the inlet pipeline of the water pump (L7X) Removing Remove the battery. Remove: ECU automatic transmission: relay block 1; mounting bolts 2 shelves for the battery. Note. To remove the bolts of the shelf under the battery, drill three non-removable bolts with a...
Removal and installation of a broad tank Attention! Because cooling systems are designed to operate under pressure, beware of severe burns from hot liquid ejection. Attention! Never remove the expansion tank cap when the engine is hot. When working in the...