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Expert Answers about BMW


  • How to Stop Parking lights Pulsing on a Trailer With LED Lights
  • This can be a fairly common issue with trailers that have LED lights being towed with a vehicle that also uses LED lights. The higher amperage being pushed through the wiring harness can cause lights to pulse and is usually a pretty easy fix. Multiple lights are generally installed to a trailer with a single ground source. With your situation, you will need to have a dedicated ground for each light. This should cause the run off to dissipate into the frame and solve the pulsing issue.
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  • Getting Trailer Running Lights to Work on a 2005 BMW X5 Trailer Wiring Harness
  • Getting the running lights to work would require attaching the correct wire on the trailer wiring harness you are using to the correct wire on the 2005 BMW X5. It will be very similar to the video I have linked showing a typical installation of wiring harness # 119250KIT. You will need to either use the included circuit tester with the wiring harness or # PTW2993 if you need one. Then test the taillight wiring to find the correct wire for the running light circuit. If you do have power...
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  • Troubleshooting My T-One Vehicle Wiring Harness On My 2018 BMW X#
  • There can be many reasons that your blinkers and your hazard lights are not working: your harness wires may not be connected securely, you may have plugs that are not seated together properly or making a good connection, you may require a fuse or a relay is blown or missing, or the ground may be insufficient. In order to troubleshoot your setup you will need a circuit tester. I recommend the Hook Probe Circuit Tester, part # PTW2993. There are four methods you will use to trouble shoot...
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  • Furrion Cameras Not Working Properly From Running Light Circuit
  • It sounds like the running light pin is not providing enough power for the three cameras. You might need to introduce the 7-Way Vehicle Power Adapter w/ Power Switch for Furrion RV Observation Camera, part # FR87PR, into your electrical system. It is designed to connect the trailer wiring from your tow vehicle's 7-way trailer connector. It will provide your cameras extra power. This should eliminate the intermittent power issues you are having with your camera. I have included product...
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  • Muffler of 2010 BMW 1 Series Rattles Against Recently Installed Hitch
  • I have not had any specific feedback on that vehicle, but having a muffler rattle against a hitch is a fairly common occurrence that is easily repairable. Because an exhaust system is meant to move on its hangers, it does not sit in a fixed position, and this position can vary a bit from vehicle to vehicle. If you look at the FAQ article I have linked you to, you can see some different strategies like slightly bending the exhaust hangers to provide more clearance between the hitch and muffler.
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  • Solution for Nutsert of Draw Tite Hitch for 2005 BMW X5 that Allows Bolt to Just Spin
  • You are going to have to find a way to hold the nutsert so that you can remove the bolt and try again. It's a pretty tricky situation getting that bolt setup right but you have to do it just like the install instructions and video show. If you push hard enough on the hitch up into the nutsert you should be able to get the hitch to hold it tight enough to the frame to prevent it from moving so that you could remove the bolt.
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  • Troubleshooting Trailer Valet Squealing When Moving
  • I spoke with my contact at Trailer Valet and she said that what you described sounds like a lack of lubrication which is causing the sound you are describing. You will want to remove the gear cover and lubricate all the moving parts with an emphasis on the chains and the noise should go away. In the manual, which I attached a link to, there is a section on maintenance that you may find helpful.
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  • Worn Out Actuator Shock Troubleshooting, Loud Clanking on Acceleration
  • It sounds like the shock is worn out in your coupler and it is no longer functioning as a dampener to allow the coupler to return slowly and that is the clanking sound you are hearing. I attached a page that shows all of the different actuator shocks like # T2336200 that we offer. If you email me back with what model actuator you have I can help you pick one out.
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  • Troubleshooting a P3 Brake Controller that Will Not go to Sleep
  • The Prodigy P3 Brake Controller # 90195 that you referenced is designed to go to sleep after 15 minutes of no activity. You should note that even opening the door to your vehicle will wake it back up. I would recommend letting it sit for about 20 minutes and then looking through the window to see if the controller has gone to sleep. Be sure not to bump the vehicle either.
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  • How to Prevent Hyperflashing on a 2009 BMW X6
  • We see the hyper-flashing issue on vehicle's like your 2009 BMW X6 that are towing trailer's with LED lights. One option to solve the issue is to use the adapter # 20142 which is the easiest way. The second is to install load resistors, like # DI34ZR. The reason you experience hyperflash is because of the low draw from LED lights. Both solutions build resistance in the line to solve the hyperflash problem.
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  • Troubleshooting Shorted Out Powered Taillight Converter on 2007 BMW X5
  • The converter is designed to provide circuit protection, to isolate any shorts from the vehicle wiring. In this instance, it served its purpose perfectly by blowing its internal circuit breaker before anything on the vehicle could be damaged. The circuit breaker shuts down before the short can reach the vehicle wiring, which explains why no fuses were blown. Before replacing the converter, I'd suggest you carefully examine the trailer wiring, looking for the short that caused the converter...
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  • Pairing Problems with the Tekonsha Prodigy RF Brake Controller and a 2008 BMW X5
  • There are very precise steps that you must take to make sure the RF brake controller, # TK94FR, will pair with the hand held unit. First, make sure the trailer is coupled to the towing vehicle. Then plug the RF into the tow vehicle connector making sure the trailers connector is not connected to the RF yet. Next, start the tow vehicle engine and then plug the hand-held unit into the auxiliary power port. Turn the power knob until the display reads a flashing 0.0. Then, press and hold both...
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  • Prodigy RF Brake Controller is Not Pairing with a 2014 BMW X5
  • The issue you are having is common 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 tape....
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  • Load Resistors to Fix Rapid Flashing LED Lights
  • The LED taillights often have this hyperflashing issue. To solve it, you simply need to add a load resistor like # DI34ZR. You will need one resistor for each side and this kit comes with 2. This will draw more power from your system so you won't get that hyperflashing. I've attached a diagram on correctly installing these load resistors.
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  • No Power to Towing Kit on Stealth Hitch For 2014 BMW 328i xDrive Sports Wagon
  • Thank you very much for your purchase from etrailer of the Towing Kit w/ Ball Mount and Trailer Wiring for Stealth Hitches Hidden Rack Receiver # 391CONVA7 as we are always happy to try and help our customers. For this issue with your BMW, there are a number of issues that could be occurring, and you mentioned testing, and it sounds like you have already tested the power wire from the battery into the module. Assuming you have and it is indeed receiving power, use Circuit Tester # PTW2979...
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  • Trailer Brakes Pulse with Turn Signal Using the Prodigy RF Brake Controller on a 2011 BMW X5
  • That is not normal operation for the Prodigy RF brake controller # TK94FR. The likely issue is the sensitive nature of the tow package wiring on the 2011 BMX X5. But what you can use is use adapter # C57003 which will maintain more load on the electrical system so that all of the signals running through the RF have a high enough voltage/amperage for it to work properly. In the mean time I recommend using the manual override on the in-cab controller part of the RF to apply constant voltage...
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  • Why Won't My Front WeatherTech Side Window Rain Guards Work on My 2017 BMW X5?
  • I have an answer for you. Assuming that you have the correct front wind deflectors that are customly designed to fit your 2017 BMW X5 like the WeatherTech Side Window Rain Guards with Dark Tinting # WT80437, there are a couple of tips that may help you with the functionality of your front windows. The first tip is to ensure that the only part of the deflector insterted into the window channel is the thin, machined flange along the edge of the deflector. Secondly, it is important to make...
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  • Tekonsha Primus IQ Trailer Brake Controller # TK90160 Blowing Fuse on 2015 BMW X5
  • I spoke with my contact at Tekonsha and in order to correct the issue of the circuit being overloaded when installing the Primus IQ Trailer Brake Controller, # TK90160, on your 2015 BMW X5, you will need to install a Pulse Preventer, # 5501. The pulse preventer will need to be wired backwards which will allow power to come from the vehicle but will block power from coming out of the controller and back to the vehicle. Once you have installed the pulse preventer, I recommend taking your...
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  • Cannot Sync Prodigy RF with a 2018 BMW X5
  • The issue you are having with the Prodigy RF # TK94FR 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...
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  • Troubleshooting Only One Side of Trailer Brakes Locking Up
  • Yes, when the electric signal is sent from the Tekonsha Prodigy P3 Trailer Brake Controller # 90195 to the trailer's brakes, it should cause both sides to lock up. Since only one side is locking up, it could indicate that one brake assembly needs to be manually adjusted. I attached a video that shows how to do this process. If that doesn't get it to respond then there is possibly an issue with the wiring going into the brake assembly which you can test using a circuit tester like # PTW2993....
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