What causes a blown fuse on a Mercedes Benz?
Some faults can happen inside the component. The wiring may be fine, but bad connections in a window motor or control board may cause the short circuit and a blown fuse. In older cars, the power wire itself may work loose and chafe on the chassis.
Where are the fuses located in a Mercedes C class?
Figure 3. Regular and mini size auto fuses arranged by amperage and color. There are three fuse boxes; located in the engine compartment, trunk and cabin as shown above. Use the Fuse Diagram found with the fuses, or attached below, to determine fuse location and amperage.
What causes a car battery to blow a fuse?
In older cars, the power wire itself may work loose and chafe on the chassis. The wire insulation wears off, and the bare wire contacts the chassis, completing the short circuit back to the battery and blowing the fuse. Because the wire is loose, this short circuit can come and go. Figure 1.
What kind of Fuse do I need for wiper motor?
So the wiper motor needs a 30 amp fuse, while the tire pressure monitor uses only a 5 amp fuse. In both cases, in the event of a short circuit the properly rated fuse will blow. Always use the proper fuse. Auto fuses are marked and color coded (Figure 3). The two common sizes (regular ATC and mini ATM) are available at auto parts stores.
Some faults can happen inside the component. The wiring may be fine, but bad connections in a window motor or control board may cause the short circuit and a blown fuse. In older cars, the power wire itself may work loose and chafe on the chassis.
In older cars, the power wire itself may work loose and chafe on the chassis. The wire insulation wears off, and the bare wire contacts the chassis, completing the short circuit back to the battery and blowing the fuse. Because the wire is loose, this short circuit can come and go. Figure 1.
How to diagnose a fuse that keeps blowing?
(EASY) DIAGNOSING A FUSE THAT KEEPS BLOWING, ELECTRICAL (SHORT CIRCUIT, NO START) / ARE YOU SAVED? – YouTube (EASY) DIAGNOSING A FUSE THAT KEEPS BLOWING, ELECTRICAL (SHORT CIRCUIT, NO START) / ARE YOU SAVED?
Figure 3. Regular and mini size auto fuses arranged by amperage and color. There are three fuse boxes; located in the engine compartment, trunk and cabin as shown above. Use the Fuse Diagram found with the fuses, or attached below, to determine fuse location and amperage.
How to troubleshoot BMW E30 / E36 electical problem?
First, disconnect the trunk (E36) and engine compartment (E30) light before beginning any testing. Now, move to the fuse box in the front engine compartment, and start removing fuses. Carefully watch the ammeter to see if the current drops to zero when a particular fuse is pulled.
Why is the climate control not working on my Mercedes?
With all the fuses working and the car only having 48K miles, I am thinking that it is just too much of a cooincidence that the climate control stopped working the day after replacing the engine harnesses. Although I just don’t get why everything tested fine right after the harness change.
What is the fuse box diagram for a Mercedes Benz?
Fuse box diagrams (fuse layout) and assignment of fuses and relays, location of the fuse blocks in Mercedes-Benz vehicles. Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz 190, 190 E and 190 D (W201) (1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993).
Why does my Mercedes air conditioner keep blowing hot air?
In many models, the AC keeps blowing hot air even after recharging the coolant. It is a frustrating problem, especially during the summer, when it is almost impossible to drive a car without the AC on. A Mercedes air conditioning reset is a possible solution. Do you know how to do it? Is there any other way to fix the glitch?
How do you fix a blown fuse on a Mercedes Benz?
Locate your fuse boxes, and become current with fuse sizes as well as color codes. Conduct fuse testing to find blown fuses. Gain the capacity to replace your fuses, and the potential to insulate yourself from shocking repair bills. This article will help you understand the fuses in your Mercedes-Benz C-Class w204.
With all the fuses working and the car only having 48K miles, I am thinking that it is just too much of a cooincidence that the climate control stopped working the day after replacing the engine harnesses. Although I just don’t get why everything tested fine right after the harness change.
Where are the fuses on a Mercedes Benz W204?
Testing fuses in place with a multimeter. Use the Mercedes fuse allocation chart to locate a specific fuse and amperage. For instance, the reading lamps are on fuse #17, rated at 30 amps and located in the under hood box. Figure 6. W204 fuse allocation chart (page 1). Figure 7. W204 fuse allocation chart (page 2). Figure 8.
What kind of electricity does a Mercedes C class use?
This article applies to the Mercedes Benz C-Class w204 (2007-2014). Sunroof, seat heaters, wipers, sound system, lights are all of the electrical features of your car, which are powered with electricity made by the alternator and stored in the battery.
Where are the fuse ratings on a Mercedes Benz?
The fuse ratings are listed in the fuse allocation chart. If a newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center. Before changing a fuse, secure the vehicle against rolling away and switch off all electrical consumers.
Where are the fuses located in a car?
There are three fuse boxes; located in the engine compartment, trunk and cabin as shown above. Use the Fuse Diagram found with the fuses, or attached below, to determine fuse location and amperage. Note: US spec models may have no fuses in the left-side instrument panel. Find a bad fuse by checking continuity with a multi-meter.
Where are the fuses on a Mercedes W204?
If a fuse has blown, the inside element will be melted. Blown fuses must be replaced with fuses of the same rating, which you can recognize by the color and value. The fuse allocation chart is located in the vehicle tool kit in the storage compartment under the trunk floor.
Where is the fuse allocation chart on a Mercedes Benz?
The fuse allocation chart is located in the vehicle tool kit in the storage compartment under the trunk floor. If a newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.
What is the fuse box diagram for a Mercedes CL500?
Here you will find fuse box diagrams of Mercedes-Benz CL500, CL600, CL55, CL63, CL65, S280, S320, S350, S400, S430, S500, S600, S55, S65 (1999, 2000, 2001, 2002, 2003, 2004, 2005 and 2006), get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
Testing fuses in place with a multimeter. Use the Mercedes fuse allocation chart to locate a specific fuse and amperage. For instance, the reading lamps are on fuse #17, rated at 30 amps and located in the under hood box. Figure 6. W204 fuse allocation chart (page 1). Figure 7. W204 fuse allocation chart (page 2). Figure 8.
What does the SRS light mean on a Mercedes Benz?
What does SRS light mean? SRS stands for Supplemental Restraint System. If this warning light stays on in your Mercedes Benz, that means that there is a problem with the airbags or the components that are part of the SRS system.
Why is my Mercedes Benz blower motor not working?
If there no power is found, the blower motor resister is the culprit and needs to be replaced. As a note, 85 percent of the time when the blower motor does not come on or operates at one speed only, the blower motor resister is at fault. The resister emits substantial heat from the resistance it supplies and eventually burns up.
Where is the resister on a Mercedes Benz fan?
Just to the left of the blower motor, an electrical connector connected to a flat 1-inch-by-2-inch plate can be seen. This is the blower motor resister, which controls the fan speeds. Disconnect the multi-wire connector from the blower motor resister next to the blower motor. Start the car and turn the air conditioning on.
Where are the fuses on a Mercedes C class?
Fuses 43-63 are located under the hood. Near the hood hinge on the driver’s side. Take a look at the pictures for the exact location.
Where is the blower motor on a Mercedes Benz?
The motor can be seen hanging down close to the passenger kick panel. Just to the left of the blower motor, an electrical connector connected to a flat 1-inch-by-2-inch plate can be seen. This is the blower motor resister, which controls the fan speeds. Disconnect the multi-wire connector from the blower motor resister next to the blower motor.
What causes a fuse to blow on a blower motor?
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the system.
What causes a bad or failing blower motor relay?
Blown fuses. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Any sort of electrical spikes or excessive current…
What happens if you have a bad blower motor?
The blower motor is the component responsible for pushing air through the vents of your vehicle’s heating and air conditioning systems. Without it, the AC system will not be able to circulate any heated or cooled air.