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Expert Answers about Mercedes-Benz GLK-Class


  • Recommendation for Carrying 2 Bikes on 2014 Mercedes-Benz GLK with No Trailer Hitch
  • There are other ways to carry bikes on your 2014 Mercedes-Benz GLK without having a trailer hitch. I recommend adding a roof rack. The most popular rack for the 2014 GLK, and a rack I highly recommend, is the Thule WingBar Roof Rack using # TH711400 and # TH710401. The WingBars have an aerodynamic shape that help cut down on wind noise and drag from traditional square crossbars. These crossbars are made from a lightweight, durable aluminum. I've attached a review video of these crossbars...
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  • Trailer Wiring Kit Recommendation for 2013 Mercedes GLK350
  • The best trailer wiring harness for your 2013 Mercedes GLK350 is the ZCI kit part # 119250KIT which does not require any splicing to install and is a very reliable and well-made kit. This kit comes with everything you'd need to install in your vehicle.
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  • Thule Snow Chain Recommendation for a 2014 Mercedes Benz GLK-250 with 235/50r19 Tire
  • I checked with Thule and the Thule Tire Chains XB16 # TH01571247 that you referenced have been confirmed to fit your 235/50r19 tire size. I think the issue you may have ran into is that you selected passenger car from their drop down menu, once you select SUV and then enter your tire size info this chain popped up as a fit under the traditional style chains. You will want to check the owners manual of your vehicle to determine if there are any restrictions on snow chain usage.
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  • Trailer Hitch Receiver And 4-Way Wiring Harness For a 2010 Mercedes GLK 350
  • For your 2010 Mercedes GLK 350 I recommend the Draw-Tite Max-Frame Trailer Hitch Receiver # 75774. This receiver is much easier to install than the Curt # C13142. It has a tongue weight rating of 350lbs for your Yakima Cargo Box # Y62VR. I recommend the ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT for the 4-way flat wiring connection you need for the Rola cargo box. This kit will not require you to splice into your factory tail light wiring like other kits. It uses sensors...
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  • Solution for Curt Echo Mobile Brake Controller App Stuck Loading on iPhone
  • You need to reset the app on your iPhone. Depending on what iPhone you have you'll need to bring up the open app screen by either double tapping the home button or dragging up on the bottom of the screen so that you can kill the app and restart it.
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  • Availability of Install Video for Hitch that Fits 2013 Mercedes GLK350
  • For your 2013 Mercedes GLK350 we only have install videos for the Draw Tite hitch part # 75774 and not the Curt you referenced part # C13177. I did attach a link to a set of detailed instructions for the Curt hitch for you to check out though.
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  • Trailer Hitch Recommendation for a Bike Carrier on a 2011 Mercedes GLK350
  • For your 2011 Mercedes GLK350 the Draw-Tite hitch # 75774 and discontinued Hidden Hitch model 87636 are going to be identical (except for the name). The installation of these 2 hitches takes less time and thus installation is easier than the Curt hitch # C13142 which uses different attachment points on the vehicle. Based on the options I recommend trailer hitch #75774 which also happens to be the most popular option for GLK350 owners. I have linked the installation instructions for you. This...
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  • Ball Mount and Trailer Connector Adapter Recommendation for 2014 Mercedes GLK 350
  • It is important to choose a ball mount with the correct rise or drop needed so you can tow your trailer level. You will want to measure your hitch height, as well as the height of your trailer's coupler. The difference between these two heights will let you know which drop or rise you will want. I have attached a help article on finding the correct ball mount. You will also want to know the weight of the trailer you are towing. This is important to make sure you do not exceed the towing...
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  • Can the ZCI Trailer Wiring Kit Install in Multi-Plexed Taillight Wiring
  • The ZCI trailer wiring harness # 119250KIT is pretty universal and can fit several different types of taillight configurations. Sounds like you watched an install video that uses a different style than what you have. If you check out the picture I attached you can see the different styles of lights this kit fits and how to wire it up accordingly. Your setup is going to be either the BT or the BTT setup.
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  • Can Weight Distribution System Be Used with 2015 Mercedez-Benz GLK-Class
  • I may have a solution for you, however there isn't a trailer hitch available for your 2015 Mercedez-Benz GLK-Class that is rated for use with a weight distribution system. When this happens it typically has just as much to do with the vehicle than with the hitch itself, as trailer hitch manufacturers try to line up hitch specs and restrictions with the vehicles they are designed to fit. Most likely the rear of your Mercedes simply can't handle the type of tension/force that a weight distribution...
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  • Using the Prodigy RF Trailer Brake Controller with a 2014 Mercedes GLK with 7-Way but Only 4 Wires
  • If I understand correctly, your 2014 Mercedes GLK has a 7-Way trailer connector, but it only has 4 wires going to it. That should mean you only have the basic lighting functions: right turn/brake, left turn/brake, and running lights. You can use a meter or circuit tester such as # PTW2993, to see if there really those functions are just by testing the pins while someone goes through the lighting functions. I have linked a wiring article that includes diagrams and functions of various connectors...
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  • Tire Chain Recommendation for 2015 Mercedes GLK 250 with Tire Size 235/50-19
  • For the price, warranty, ease of install, and traction the best option for tire chains for the tire size 235/50-19 that you have on your 2015 Mercedes GLK 250 is the Thule Chains part # TH01571247. Unlike most chains these have a 5 year warranty where others have only a few months max. These install pretty easy and the diamond pattern allows for great traction. Also these are priced great too.
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  • Recommended Towing Mirrors for 2012 Mercedes-Benz GLK 350
  • For your 2012 Mercedes GLK 350, I recommend looking at the K-Source Universal Towing MIrror # KS3891. These mirrors will fit most vehicle mirrors that are 4-1/2 inch to 11-1/2 inches tall and have a nice black plastic housing to provide a clean look that won't rust or corrode. They require a lip or gap between the factory mirror and the glass, so as long as the mirrors on your Mercedes have this design, these will work great. Another universal option if the K-Source design does not work...
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  • Recommended Trailer Wiring Harness For 2013 Mercedes-Benz GLK250
  • We have a couple of different style wiring kits for your 2013 GLK250, but the # C56291is not compatible with your car. Most of the harnesses we offer are a hardwire like part # 119250KIT.This harness clamp on to the vehicle tail light wiring harness and you then need to run the hot lead wire(Black), up to your positive battery post with the inline fuse holder. Last, you need to connect the White ground wire to a clean metal surface. I have attached a link to an installation video you can...
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  • What is Trailer Towing Capacity of Draw Tite Hitch that Fits 2015 Mercedes GLK
  • The Draw Tite hitch part # 75774 you referenced that fits a 2015 Mercedes GLK can to a trailer that weighs up to 4,000 lbs so as long as the boat and trailer weigh less than that it would work great.
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  • Choosing Correct Ball Mount for 2014 Mercedes Benz GLK 250 BlueTec w/ Factory Hitch
  • I would imagine that Mercedes puts a Class III hitch on that vehicle as the factory option. You can confirm that by measuring the INSIDE dimension of the receiver opening. If it measures 2 by 2 inches, it's a Class III. If it's 1-1/4 by 1-1/4 inches, its a Class I or II. The sticker on the hitch should tell you which. Both the ball mounts you mentioned could be used in a Class I or II hitch, as long as the capacity of the hitch or the ball mount isn't exceeded. If you have the Class III...
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  • 7-Way Trailer Wiring Recommendation for a 2013 Mercedes Benz GLK 250
  • To install a 7-way on your 2013 Mercedes Benz GLK 250 you will first need to install a 4-way. For that the # 119250KIT is the correct kit to use. Now to convert this to a 7-way you will need the part # 37185. The 4-way will plug into this and then to add the reverse light circuit you will need to test the wiring of your rear taillight harnesses to find the one that carries the reverse light circuit and tap into it for the purple wire of the # 37185. I attached an install video for the...
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  • Bike-Carrying Options For 2013 Mercedes-Benz GLK Series
  • There are a few options you can consider to carry bikes on your 2013 Mercedes-Benz GLK. As you mentioned, it would be easier to use a trunk mount bike carrier, but you would not be able to open the rear hatch with a trunk-mount bike rack installed. A roof rack is another option, but it may be difficult to place bikes on and off the roof in a bike rack. A third option which I recommend is to have a hitch installed and use a hitch-mount bike carrier. This keeps the roof open, and with...
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  • Recommended Trailer Wiring Harness Options for a 2012 Mercedes-Benz GLK-Class
  • The trailer wiring harness I recommend for a 2012 Mercedes-Benz GLK-Class is the ZCI Circuit Protected Vehicle Wiring Harness part # 119250KIT because it's the only option which does not splice into the vehicle. Instead, it uses clamp on sensors that don't actually pierce the wire so it won't void any warranties and it can be removed easily reverting the vehicle back to stock. The other options all require splicing which is fine if you want to save some money but there is a level of modifying...
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  • Why is There a Different Hitch for the 2013 Mercedes Benz GLK 250 and 350
  • The two hitches you referenced for the 2013 Mercedes Benz GLK are very similar but have different applications. The part # C13155 is the correct hitch for the GLK250 whereas the # C13177 is for the GLK350. While these hitches look very similar you will notice that the back mounting bracket of the 13177 uses a taller mounting plate that comes up higher than the other hitch. This is due to different shaped crossmembers on either vehicle model. Since you have a 250 you would want the part...
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