Expert Answers about Mercedes-Benz

• Troubleshooting the Kwikee Revolution Series RV steps on a 2014 Itasca
• From what you describe I suggest you examine the motor and gears as it appears they are worn. The Replacement Motor for Kwikee Revolution Series Electric RV Steps, # LC380073 is the correct part number. Or, for a complete replacement of Kwikee Revolution Series RV steps, I recommend the Kwikee RV Electric Steps - Revolution Series, # LC3725791.
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• My Curt Echo Brake Controller Is Braking Too Hard And Not Releasing
• Odds are there is a bad ground causing the issue with your Curt Echo Brake Controller # C51180, but it could also be one other thing, and it is a quick and easy thing to test. We have seen a few issues with the Curt Echo when the trailer plug is connected and then the Echo is plugged into the vehicle. Not 100% sure why this causes it to act weird, but it can. What I recommend trying first will be to do a factory reset. This does require deleting the app and starting the process of installing...
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• Pairing Problems with a Tekonsha RF Prodigy Brake Controller and a 2008 Mercedes GL450
• I attached installation instructions that I checked out and it looks like you need to do the following steps: 1. Connect trailer to tow vehicle 2. Plug the Power Module 7-Way cable into the tow vehicle 3. The trailer 7-way must be disconnected from the power module 4. Start the vehicle engine, or sometimes you will only have to have the key on (try both since you are having problems) 5. Plug the remote hand held unit into an auxiliary power source within reach of you 6. Turn the power...
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• Skid Wheels for Motorhome to Prevent Scraping When Backing into Parking Spot
• For preventing scraping when backing a motorhome into a spot typically the best solution is to use a set of skid wheels like the part # UF48-979013 for motorhomes that are 34 feet and longer or the part # UF48-979011 for less than 30 feet. The install of water heaters like the Furrion Tankless water heater like part # FR98SR should only be done by a professional.
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• Troubleshooting Intermittent Curt Echo Brake Controller Trailer Connection Error Code
• If you are seeing a message that says trailer disconnected that would mean that the Echo # C51180 is not connected to the trailer at all and would not be able to control the brakes. If this is an intermittent issue then most likely it's just a bit of corrosion on the pins of your trailer connector that is preventing the connection from being made. Typically just taking some sandpaper to the pins of the connectors fixes this issue.
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• Troubleshooting MaxxFan 04000K That Does Not Adjust Function with Remote or Buttons on Fan
• Your MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat - Manual Lift - 10 Speed - White # MA00-04000K has a bad circuit board. If you recently installed it, you will want to look at the manufacturer warranty. If it is an older unit, then you will want the Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents # MA10A21276K which will restore all of the functions you are currently missing.
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• Troubleshooting MaxxAir 4751KS Vent Lid Not Opening And Fan Running All The Time.
• Based on the issue you are having, Yes. A bad circuit board can cause all kinds of weird issues like your fan running all the time and the vent lid not opening. Since you have the MaxxAir 4751KS you will need the replacement circuit board # MA10A04751KS. I included a video of the # MA10A04751KS for you to take a look at.
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• Where to Access Brake Signal for Curt Spectrum Brake Controller in 2010 Mercedes-Benz ML350 BlueTec
• To correct the unwanted braking action from your Curt Spectrum # C51170 caused by the 3.6V monitoring signal generated by your 2010 Mercedes-Benz ML350 BlueTec you'll need to access the brake light signal at a location other than at the brake light switch. You can tap into the circuit at the CHMSL (center high-mount stop light) or at one of the two main brake lights and run that wire back to the controller's RED input trigger wire. My contact at Curt confirmed this and that you do not...
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• CTEK Multi US Charger Green Flashing Power Light
• You're correct that the green flashing power light on the CTEK MULTI US 7002 # CTEK56353 is normal- the green power indicator light should be continually flashing during the reconditioning or charging process. If it is not flashing then the charger is not recognizing the battery. This could be due to an bad connection or a completely dead battery. Normally the reconditioning cycle occurs at the beginning of the cycle, so it still should have provided a full charge on this battery. If it...
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• Troubleshooting 7-Way on Mercedes ML-350 Where Trailer Lights Dont Work
• If your vehicle is set up to only be able to tow a trailer with incandescent lights. Then you would be able to replace all of the trailers lights with LEDs and it would, in theory, work just fine. Since we have never heard of a vehicle being only set up to tow a trailer with just LED lights I suspect you may have something else going on. Especially since German vehicles typically have the opposite problem where they don't like LED trailer lights. First thing you should do at this point...
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• Troubleshooting Prodigy RF Brake Controller Pairing Issues on a Mercedes
• The issue you are having is not uncommon for German vehicles. There are a few things you can try to get the unit to pair. First, If you do not see displayed what the instructions say just keep going through the steps. Sometimes, it will not display what it is supposed to but it will still work if you go through the steps to completion. If that does not work then you can try taping off the pin in the 5 oclock position at the back of the RF (where the trailer plugs into) using electrical...
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• Rain Getting Into Curt Echo Brake Controlller
• Your best bet would be to remove the 7-way trailer connector from its current mounting bracket and install a new one that would install horizontally. You could use the # 18138 mounting bracket to replace the existing one that holds the plug at an angle.
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• Troubleshooting Primus Brake Controller With PL Error Code When Installed on 2012 Mercedes Sprinter
• The PL error code means that there is a power interruption to the brake controller. The controller is getting enough power to illuminate the display, but not enough to correctly operate, which indicates there's something wrong on the circuit feeding power to the controller. I'd recommend tracing the power feed from the brake controller to the battery. Ideally, you'll want the power to come directly from the positive battery terminal, this circuit should be protected by a 20 or 30 amp circuit...
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• Troubleshooting GearSpace 34 with Hitch Extender Sagging on 2020 Mercedes-Benz Sprinter 3500
• From the pictures you sent it looks like your setup is overloaded. It is important to remember that the use of an extender like this will reduce the capacity of your hitch by 50%. That means if you have a hitch like the Curt # C13388, your maximum tongue weight has been reduced from 600 lbs to 300 lbs. If your hitch has a 500 lbs maximum tongue weight it will be 250 lbs with the extender. According to the manufacturer, the minimum tongue weight rating for your hitch must be 350 lbs in...
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• Help Opening Vent Lid On MaxxAir Roof Vent Fan After Removing Lift Motor
• It sounds like your Operator Mechanism # MA10-20281K-1AF is not allowing you to open the vent lid after you removed the motor. As you have removed the Motor # MA10-20270 you can try to stick a screw driver up into the gear on the operator mechanism to turn it manually and raise your vent lid. This may be a 2 person job to provide slight pressure opening the vent lid while someone else turns a screw driver in the mechanism. A flat head as close to the size of the gear on the motor is going...
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• Trouble Removing the MaxxAir MaxxFan Lift Motor From Roof Vent
• I think you may have missed a screw as there are 3 screws which hold the Lift Motor # MA10-20270 in place on your MaxxAir MaxxFan. With all 3 screws removed the motor should fall out fairly easily. Be sure you are removing the mounting screws and not the screws which hold the case together as there are also 3 of those.
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• Trailer Lights Stop Working When I Turn The Head Lights On 2014 Mercedes-Benz Sprinter
• When turning on your 2014 Mercedes-Benz Sprinter's headlights your trailer lights stop working is an indication that you have a ground issue. When your sprinter's headlights are on the highest amperage a draw is placed on the wiring system and a faulty ground will appear. First thing you will need to do is make sure you have good metal to metal contact. If there is any paint or corrosion on the bare metal it will act as an insulator. I would check all the ground connections on the trailer...
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• Rental Trailer Lights Not Working with 2011 Mercedes ML350 and Prodigy RF Brake Controller
• The Prodigy RF brake controller # TK94FR is a sensitive unit. You will need to make sure you follow the hooking up procedures to the letter or it may not work properly. If you still have problems make sure that none of the tow package fuses on your 2011 Mercedes ML350 are blown. It is also possible that the trailer lights were the problem. I would assume the rental place would check that and not leave it up to you! If the trailer happened to have LED lights you would need a special...
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• Trailer with Incandescent Lights Hyper Flash when Connected to 2012 Mercedes GL450
• That is unusual behavior for incandescent lights. It might be a result of a burned out bulb, either on the trailer or the vehicle, because that is the only time I have heard of hyper flashing with incandescent lights. Usually on German vehicles such as your 2012 Mercedes GL450 there can be issues if the trailer has LED lights because the LED lights do not draw enough power and it confuses the vehicle. The fix is to add more load by using a special adapter, which it sounds like you are...
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• Trailer Brakes Lock Up at Low Speeds With Any Tow Vehicle and Any Brake Controller
• The first thing I would look at is the adjustment of the brakes and see if backing them off a bit helps with the issue you're having, assuming that they're manually adjusting brakes. You'll want to use something like the Brake Adjustment Spoon for Drum Brakes # W80630 to back them off a bit; I've also linked our help article on brake adjustments for you to use as a reference if you're not familiar with the process. I recommend starting with that and seeing how the performance changes....
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