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Expert Answers about Mercedes-Benz


  • Is the Curt Echo Waterproof?
  • Yes. Because the Curt Echo # C51180 is made to be outside the vehicle, it's engineered for maximum weather resistance, but I would not recommend submerging the Curt Echo for any extended period of time. The unit is filled with an epoxy resin that seals off the internal components from moisture and the elements, ensuring long-lasting operation despite rain, snow, dirt, mud, and more. I do not recommend that you use this on a boat trailer that may submerge the connector, but it will stand...
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  • How Do You Remove the Bump Stops on a 2015 Mercedes Sprinter 3500 to Install Timbren Springs
  • The factory bump stops on your RV built on a 2015 Mercedes Sprinter 3500 chassis will have to be cut off and the captured part pushed out in order to install Timbren rear helper springs # TMBRSP35B. There really isn't any other way based on your picture.
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  • Would Redarc Battery Charger # 331-BCDC1225D Cause Backfeeding Problem with Vehicle Wiring
  • The Redarc In-Vehicle BCDC Battery Charger # 331-BCDC1225D that you referenced would not allow amperage or voltage to backfeed onto the vehicle trailer wiring to the point of causing any issues. With DC power it's okay to have more than one power source connected on the same circuit and there won't be any problems. AC power is a different story but that's not something you'd need to worry about.
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  • Version of Thule Hideaway Awning that Can Attach Directly to RV Sidewall without Roof Rack
  • Thule actually has a version of their Hideaway Awning that was designed for vehicles without roof racks with the part # TH490018 which is a direct mount setup. This attaches to the sidewall of the vehicle/RV instead of to a roof rack.
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  • What All Is Needed To Install The Curt 13018 Hitch On A 1999 Mercedes-Benz ML430
  • When installing the Curt # 13018 on your 1999 Mercedes ML430, you will need to remove the bumper fascia. However, this actually isn't as difficult as it sounds as it is just a few bolts and it's off. I included an install video from a different hitch that shows how quick and easy it is to remove as well. As to how far it will stick out from the bumper, I cannot say, unfortunately. We haven't had the chance to install one of these yet so I do not have this measurement, but I do have something...
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  • Can the Prodigy RF Brake Controller be Plugged into an F-150 that has a Brake Controller
  • What I recommend when using the Prodigy RF # TK94FR with your F-150 that already has a brake controller is to simply unplug the in-cab controller from the truck. That way there is no way that they can interfere with each other. The other option is to plug the trailer directly into the truck and use the truck's brake controller instead of the RF. Either way is acceptable.
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  • Installing the Tekonsha Primus IQ # TK90160 on a 2005 Mercedes-Benz ML500
  • I can help you with the installation of the Tekonsha Primus IQ # TK90160 on your 2005 Mercedes-Benz ML500 but unfortunately, I don't know which wires you will be splicing to under your dash. To figure out what wires you need to use simply take a circuit tester like part # PTW2993 and test the wires (there may be a bundle) under the driver's side dash. Look for a constant 12V of power, a wire that only gets hot when the brake pedal is pressed, a wire that outputs voltage to the 7-Way at...
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  • Installing Curt Venturer Brake Controller on 2007 Mercedes ML350 4Matic
  • To wire your Curt Venturer Trailer Brake Controller # C74VV with a wiring pigtail # C51515 to your 2007 Mercedes ML350 4Matic you will need to hardwire the controller by function. Additionally, an installation kit that includes the 7-Way connector and wiring needed to install the brake controller, such as # ETBC7, will make installation go much smoother. The pigtail has red, blue, white, and black wires that will need to be connected to install the brake controller. If your Mercedes ML350...
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  • Installation Question for Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267
  • You are correct, once you cut the white wire to ground the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 you will use that part of the white wire you cut off. You will wrap one end of the new white wire around the yellow and brown wire and route that bundle to the driver side taillight. Once you get bundle to the taillight you will you will twist the brown and white together and that gets connected to a diode. The other end of the new white wire will be routed with...
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  • Which Direction Should Star Wheel of Brake Assembly Move to Tighten Brakes
  • The adjustment star on brake assemblies like the # AKUBRK-35-D needs to turn counter-clockwise to expand the shoes so you'd need to click the star "up" to tighten the brakes or "down" to loosen them as you'd view them from the back of the assemblies. You will adjust the brakes using that wheel until there is a slight but constant drag of the shoe pads on the drum. I have included a link to a video and at about the 4:39 mark our installed begins adjusting the brakes.
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  • Will the Thule EasyFold XT # TH903202 Fold Down Enough to Open Doors on 2022 Mercedes Sprinter 3500
  • I do have an option for you but the Thule EasyFold XT Bike Rack for 2 Electric Bikes - 1-1/4" and 2" Hitches - Frame Mount # TH903202 will not drop down far enough to open the doors of your 2022 Mercedes Sprinter RV. There will not be enough clearance to open the Sprinter doors. It's also not rated for RV use. The option I have is adding the Yakima BackSwing Swing Away Hitch Extender for Bike Racks - 2" Hitches # Y02483. The Yakima BackSwing will swing your bike rack out 90...
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  • Can the Stainless Steel License Plate Jeep Chrome 302535 Be Used on the Front of My Jeep
  • Yes, the Stainless Steel License Plate Jeep Chrome # 302535 can be used on the front of your 2020 Jeep Gladiator Sport. This is actually the intended purpose since some states do not require a front license plate, but all states require a rear license plate.
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  • Installation Instructions for Curt Trailer Hitch 13342 on a 2008 Mercedes ML350
  • The instructions for Curt trailer hitch # 13342 are linked on its page, below the description, and on this page, also below. If you plan on doing some towing I recommend etrailer ball mount kit # 989900. It comes with 2 ball mounts; one with a 3/4 inch rise or 2 inch drop and one with a 2-3/4 inch rise or 4 inch drop. It also includes a 1-7/8 inch ball, 2 inch ball, hitch pin with clip, and a storage bag. If the ball mount kit does not have the right rise or drop to tow the trailer level,...
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  • Can The Tekonsha Prodigy P3 Brake Controller Be Installed On A 2017 Mercedes-Benz Sprinter 3500?
  • This is actually an issue with the Mercedes-Benz Sprinter 3500 in the 2017 model year if it was not equipped with the factory tow package. Due to the vehicle's wiring system, as you mentioned, you will need the stop light switch kit # RM-751475 to bypass the factory switch. Typically modification of the included bracket will be necessary for installation, but this is pretty easy to do. Once this is installed, you will have absolutely no problem using your Tekonsha Prodigy P3 # 90195.
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  • Will Hellwig Pro Series Helper Springs Lift Rear of 2020 Winnebago Navion
  • If you're experiencing additional sag even with the SumoSprings installed then the Hellwig Pro Series Helper Springs # HE47QR will be able to help with that. However, these are not designed to lift the rear ride height. The only lifting that might happen is if your existing suspension is worn out which would take you back to factory ride height at best. To actually lift the rear of your 2020 Winnebago Navion by 2-3" you would need some kind of lift kit which is not something that we offer.
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  • Why Is it Better to Have Trailer Wiring that Stores Inside 2015 Mercedes GL550
  • Having the 4-way run out of the back hatch is actually the preferred method although it seems like it wouldn't be. Having the 4-way stored inside the cab of the keeps it protected from rain and moisture to prevent corrosion and keeps it protected from damage to the wiring or connector by rocks or debris that might be on the highway. You can run the wire through the vehicle if you wish but just keep in mind that this does take more time and you may end up needing additional wire because...
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  • Do All 6 Bolts Need to be Installed for Rotating Clutch Position on ComeUp Winch
  • You need to make sure that all 6 bolts for the ComeUp Seal Slim Off-Road Winch # CU295051 are aligned and able to be installed for this application. From what I was able to find it looks like that T-Handle rotates in the direction that the cable/rope pays out so if you are rotating it towards the back side of the winch then that may be why you are running into issues.
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  • How To Install Vehicle Wiring Harness C59496 On 2018 Mercedes-Benz B-250
  • We do have the written instructions for installing the Vehicle Wiring Harness Kit w/ 4-Pole Trailer Connector and Installation Kit # C59496 which I linked for you, but it is not specific to your 2018 Mercedes-Benz B-250. We have not had a chance to install one on a Mercedes-Benz B-250 ourselves so we do not have a video. You will need to use the included circuit tester to find the passenger side turn signal wire, driver side turn signal wire, stop light wire, and tail light wire and make...
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  • What is the Installation Bolt Torque Specification for Draw-Tite Hitch # 75087
  • The Draw-Tite Class III Hitch # 75087 that you referenced installs using included hardware. Three different fasteners, each with their own torque specification, are supplied with the hitch. The install instructions, which are linked for you, indicate the torque required for each of the three fasteners. This information can be found under figure 3. We leave the specific torque specs out of our videos just in case the manufacturer changes these between production runs.
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  • Will Fan-Tastic Vent Ultra Breeze Trailer Roof Vent Cover DMC38FR Reduce Rattling on Vent Lid
  • The Fan-Tastic Vent Ultra Breeze Trailer Roof Vent Cover # DMC38FR is designed to protect the vent and lid from wind damage so it will help reduce the rattling on your lid significantly. Aside from protecting your vent from the natural elements, the aerodynamic design keeps the wind up and over the vent so you can leave your vent open even while driving your Roadtrek on the highway. I wasn't able to find any specific information on a model 1300 but have confirmed with the manufacturer...
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