How to replace radiator hose on Mercedes W203?
With the ducts off remove the front engine cover. It pulls up and away from the engine (yellow arrow). The cover is held on by five clips (red arrows) and will easily come off with hand pressure. With the car safely supported off the ground you will need to remove the engine tray.
How do I remove the lower radiator hose?
Remove the lower hose from the outlet of the water pump. Open the power distribution box in your engine bay and remove the cap. Disconnect the oxygen sensor connector retainer… and harness from the radiator hose. Remove the radiator upper tube bolt… and disconnect the radiator vent tube.
How do you remove a Mercedes Benz radiator?
Remove the upper radiator to coolant pump hose. Mercedes-Benz uses quick disconnect attaching points where the hose meets the radiator, but sometimes the wire clip you need to pull out is facing something that does not allow it to be pulled straight out. If this is the case just unclip it from the radiator and then pull the hose out.
Where is the radiator drain plug on a Mercedes Benz?
If you are going to leave the transmission tray on, remove the rear two bolts first, lower the engine tray, reattach the transmission tray bolts, then remove the remaining four bolts on the engine tray. With the tray removed you will see radiator drain plug on the lower left front of the car.
With the ducts off remove the front engine cover. It pulls up and away from the engine (yellow arrow). The cover is held on by five clips (red arrows) and will easily come off with hand pressure. With the car safely supported off the ground you will need to remove the engine tray.
Remove the lower hose from the outlet of the water pump. Open the power distribution box in your engine bay and remove the cap. Disconnect the oxygen sensor connector retainer… and harness from the radiator hose. Remove the radiator upper tube bolt… and disconnect the radiator vent tube.
Remove the upper radiator to coolant pump hose. Mercedes-Benz uses quick disconnect attaching points where the hose meets the radiator, but sometimes the wire clip you need to pull out is facing something that does not allow it to be pulled straight out. If this is the case just unclip it from the radiator and then pull the hose out.
If you are going to leave the transmission tray on, remove the rear two bolts first, lower the engine tray, reattach the transmission tray bolts, then remove the remaining four bolts on the engine tray. With the tray removed you will see radiator drain plug on the lower left front of the car.
Where does the lower radiator heater hose go?
When I spoke to the dealer trying to find the lower hose and the heater hose, he said that the only one they stock any more is that upper hose that goes to the lower radiator on the drivers side to the thermostat and to the overflow (S500). But that it is common to replace that hose.
Is it easy to replace a leaking radiator hose?
Replacement of a leaking radiator hose on your car is fairly easy. All you need are a few basic tools and minimal mechanical skills. You can save money on a mechanic and leave yourself with a sense of accomplishment if you learn how to replace a leaking radiator hose.
Where are the radiator and heater hoses located?
Radiator and Heater Hoses In a typical automotive cooling system, you’ll find at least 4 main hoses. First, the upper radiator hose leads directly from the thermostat housing (on the intake manifold or cylinder head) into the top of the radiator. Attached to the bottom of the radiator is a lower radiator hose.
What happens when the lower coolant hose breaks?
As all of these issues occur, small cracks in the rubber develop and get worse over time. Ultimately, the hose can split and leak, or form a mushy blister which can burst at any point. A typical lower coolant hose, with an internal spring to prevent hose collapse due to suction from the engine’s water pump.
Where are the coolant hoses located on a BMW?
Inside this passageway will be a dedicated pipe for the coolant. One such example is found on BMW-sourced V8 and V12 engines. An overflow hose runs between the radiator cap and the reservoir tank where extra coolant is stored (and added).