Compressed air is step 1, most often this clears the passage. I also use a solid copper ground wire and slide it through the entire run of the drain. This "tool" is inexpensive. Go to a hardware store and purchase a five foot length. Use a scrap of sand paper to deburr or round off the edges. gently slide in and out working the wire through the entire length of drain. since it is coppe it will flex through the bends and break up any clogs. If I hit a more stubborn clog I rotate the wire gently to break it up. Do not force it work slowly and the clog will release.
SOURCE: Mercedes 300E 2.8 Liter
Your library may have the diagram. Does any speed work? If it runs on full, there is a resistor pack in the fan housing that can be changed. This unit may also have multiple fuses controlling it. Merc has a habit of building the most difficult cars in the world to trouble shoot. Good luck, sir.
SOURCE: ENGINE CUTS OUT WHEN COLD
replace the overvoltage protection relay...red top with 10a fuse in it next to the motronic behind the battery
SOURCE: water leakage into cabin of Mercedes 2002 C240
Hi, You need to check/ clean your sunroof drains. The best way to clean them is to use compressed air if you have access.
SOURCE: Engine cant start whenever it is raining
check on the passanger side of the car to see if the floor is getting wet as well because it sounds as if your computer is getting wet behind the glove box while at home on a nice day wash the car and check it all over for leaks because the computer or something is getting wet in the car it may be a bad seal around the windshield
SOURCE: 1999 Mercedes e-320 water pump
Good morning;
does this critter have a radiator fill w/cap? I've run accross som large Sotrd trucks that don't.
Well, anyway, it soesn't make sense you would need to fill the radiator via the resenoir. That is only good for short pressure relief and cook down vacuum recovery of coolant. 60/40 is the mix ratio. If it hs a resevoir it should have a radiator cap.The air in system will purge itself as it starts to circulatte cioolant. turn heater off till your system is full, then on when engine reaches operating temp. then if needed top iff coolant. Leave radiator cap off while waiting for coolant to start circulating. When thermostat opens out comes the air. Then put coolant mix in reservoir to fill line. check for leaks and all hose clamps are tight and you should be set, Good luck - Ned
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