Expert Answers about Mercedes-Benz GL-Class

Installation of Zero Contact Interface Sensor Trailer Wiring Harness on 2015 Mercedes-Benz GL-Class
For the ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit # 119250KIT should not be installed tapping into another power supply like a cigarette lighter. The power draw needs to be directly from the battery to ensure you don't have a power issue from a fuse or other component that isn't designed for that use. Having power to your trailer wiring even when stored is not an issue and you don't want to keep turning power on and off to a controller...
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Parts Needed To Add A Trailer Wiring Harness To a 2008 Mercedes-Benz GL450
I do have options for you but there are no plug-in trailer wiring harnesses for a 2008 Mercedes-Benz GL450 unfortunately. The only way to install a trailer wiring harness would be to splice into the taillight circuits with the Hopkins Active Tail Light Converter with Install Kit part # 46255 and then add the Adapter 4-Pole to 7-Pole and 4-Pole part # 37185 if you need a 7-way.
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Trailer Hitch, 7-Way Trailer Connector and Brake Controller for 2010 Mercedes-Benz GL450
The only hitch our vendors offer for the 2010 Mercedes-Benz GL450 is the Curt # C13102, which has the 3500 lb weight capacity you mentioned. The # C13190 hitch you'd looked at isn't a fit for your vehicle, it's for a later model Mercedes GL or GLS. To install a brake controller, you'll need to start with a 4 pole trailer connector which would be provided by # C59236. For a brake controller, I really like a remote mount controller such as the Redarc Tow-Pro Liberty, part # RED24FR. The...
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Recommended 7-Way Trailer Wiring Harness for 2009 Mercedes-Benz GL450 SUV with Tow Package
We do offer a replacement 7-way harness for the 2009 Mercedes-Benz GL450 with tow package. You can use Hopkins part # HM42190 which will simply plug in to the OEM connector where the damaged 7-way is now connected.
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Trailer Hitch Needed for a 2013/2014 Mercedes-Benz GL450
Although the VIN would help to determine the model year of your Mercedes-Benz GL450, in this case the Curt Trailer Hitch Receiver # C13190 fits both a 2013 and a 2014 model year so determining which model year you have doesn't matter for the trailer hitch. If you let me know what you will be using the trailer hitch for I can make additional recommendations if necessary.
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Trailer Hitch and Wiring For 2015 Mercedes Benz GLK 250
The Curt Trailer hitch part # C13190 does not fit a 2015 Mercedes Benz GLK 250. For the 2015 Mercedes Benz GLK 250 you need a Curt Hitch part # C13155. If you need wiring I recommend ZCI Circuit Protected Vehicle Wiring Harness part # 119250KIT because it is the only kit available for the Mercedes that doesn't include splicing into your vehicle's wiring.
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Is Trimming of Bumper Required for CURT Trailer Hitch # C13102 on 2011 Mercedes-Benz GL 450
I contacted our representative at CURT about installing the CURT Trailer Hitch # C13102, on your 2011 Mercedes-Benz GL450. He informed me that there should be no trimming required to install the hitch even with plastic fascia. I have attached a picture of the hitch installed on a model with the decorative aluminum fascia. You will want to compare the fascia to see if it is the same size and shape. However, if the exhaust heat shields are coming in contact with the hitch, the heat shields...
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Trailer Lights Won't Work on 2011 Mercedes-Benz GL on Trailer With 4-Way
I'm not sure why U-haul would say it's fine when it clearly isn't, but the problem with the Mercedes is that there isn't enough power draw, so you'd need to use a lamp-out adapter: - 7-Way to 4-Way/5-Way Trailer Adapter for Vehicles with Lamp-Out Sensors # C35FR This will allow the trailer's brake and turn signals to recognize the signals coming from your Mercedes. If you were already using one of these adapters (I wasn't sure if you were talking about one of those or a 4-way to 7-way...
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What Is The Purpose Of The Rear Support Arm On The Curt Trailer Hitch C13190 For 2013 Mercedes GL450
The rear mounting arm of the Curt Trailer Hitch Receiver # C13190 you were looking at for your 2013 Mercedes-Benz GL450 is designed to add extra strength and stability to the trailer hitch receiver, which is shown in its much higher ratings of 900lbs tongue weight and 7500lb trailer weight rating. I guess it is possible if you were rear ended hard enough directly on the receiver it could cause frame damaged, but that is pretty unlikely as it would first need to bend frame where your bumper...
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Will Whispbar Rail Bar Roof Rack and Skybox Cargo Box Fit on My 2013 Mercedes-Benz GL350
I spoke with my contact at Yakima and he recommends going with the FlushBar system, parts # Y00442-0443 and Y00158, for your 2013 Mercedes Benz GL350. This roof rack sits higher which gives you added room to avoid the factory satellite radio antenna. As for a cargo box, you will want to take a measurement of your vehicle's roof to ensure that you have sufficient room so there is no interference with the liftgate. I am including a photo that illustrates where to take the measurements and...
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Installation Instructions for Curt Hitch on 2014 Mercedes GL550
The instructions for the Curt Class III Receiver Hitch # C13190 are attached. Curt provides photos of the installation process in their instructions for you. For installation, you will want to temporarily remove the bumper fascia and lower the vehicle exhaust. You will also want to trim the heat shield. This hitch does not require any drilling or welding for installation. The Curt # C13190 is confirmed to fit the 2014 Mercedes GL550.
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How Much Room on RV Frame Does Lippert Ground Control Middle and Rear Jacks Take Up
The middle and rear jack mounting brackets of the Lippert Ground Control 3.0 Electric 5th Wheel RV Leveling System w Touchpad and Remote - 6-Point Set # LC675817 that you referenced are a total of 6 inches in width. That's how much free room you'd need on your RV's frame.
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Trailer Hitch Receiver Compatability For a 2013 Mercedes-Benz GL450
I recommend the Curt Trailer Hitch Receiver # C13102 for your 2013 Mercedes-Benz GL450. This is custom fit for your GL450 and requires no drilling. It is rated for a maximum tongue weight of 350lbs and a maximum trailer weight of 3,500lbs. The Curt Trailer Hitch Receiver # C13173 will only fit GL350 models with the BlueTEC engine. The ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT is the wiring harness that I recommend using. It has a no splice wire design that senses the...
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Trailer Lights Not Working Using 4- to 7-Way Adapter on a 2012 Mercedes GL450
If the trailer has LED lights then the issue isn't the adapter or the trailer. It is the vehicle. The 2012 Mercedes GL450 and other German vehicles do not work well with trailers that have LED lights. This is because LED lights do not draw enough power for the tow package on the vehicle to recognize them. Usually this is accompanied by a bulb out sensor light in the vehicle. The fix is to use a special adapter such as # C35FR. Or, if this is the adapter you are using then adding load resistors...
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Wireless Electric Trailer Brake Controller for a 2010 Mercedes Benz GL 450
The Tekonsha Prodigy RF Wireless Brake Controller, part # TK94FR, is a universal controller that can work on any vehicle. All it needs to operate is a 7-way trailer connector at the rear of your 2010 Mercedes-Benz GL 450 that has a functioning 12 volt power circuit. If your Mercedes doesn't have a 7-way on it already you can add one. First you want to add a 4-way using the Hopkins, part # 46255. Then use our # ETBC7 kit to convert the 4-way to a 7-way. You don't even have to install...
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Can the Titan Chain Snow Tire Chains # TC2828CAM be used on 275/55R15 Tires
I do have some snow tire chains for you, but the Titan Chains # TC2828CAM are not compatible with 275/55R15 tires. The Koing Premium Self-Tensioning Snow Tire Chains # TH02230K44 are the only chains that will fit your tire size. These tire chains are made out of manganese nickel alloy steel, and feature dual-sided, D-shaped links that will help increase traction and they also have icebreaker reinforcements which give them very good grip on snow and ice. They also have a self-centering...
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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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Recommended 7-Way Wiring and Brake Controller for 2014 Mercedes-Benz GL450
I recommend the 7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires # ETBC7L for your 2014 Mercedes-Benz GL450. The kit comes with everything necessary to convert your existing 4-way to a 7-way and allows you to keep the 4-way connection. I recommend the Curt Echo Wireless Trailer Brake Controller - 1 to 2 Axles - Proportional # C51180 for your brake controller. Installation of this brake controller is simple and requires no additional wires. It is Bluetooth-enabled...
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Is There a Formula for Determining Air Pressure in Trailer
There is no special formula for tire pressure in regards to the load of your trailer as you normally want to inflate the tire to the maximum cold psi for the best performance. However, if you are not getting that, and your trailer is bouncing then you can try reducing the air pressure on a 5.30R12 tires like the Taskmaster # TT53012C which like your tire, has a max of 80 psi. The maximum capacity of these load range C tires is 1,050 lbs each so if you have the same or similar tire you...
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Carrying 5 Bikes Using a Trailer hitch Mount Bike Rack on a 2011 Mercedes GL 350
You do likely have a 2 inch trailer hitch on your 2011 Mercedes GL350. To be sure, just measure the receiver opening width. Just measure the opening, not the overall width. The Apex XT 5 bike rack # TH9026XT is a great option. Carrying 5 bikes can be difficult, even on a rack designed for 5 bikes. The Thule Apex XT has 7 inches of spacing between the cradles for each bike giving you plenty of space to load them. It also holds the bikes at 3 locations keeping them from swaying back and...
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