M-Class (W166) Produced 2012-2015

I have a 2018 Merceds Sprinter.

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Old Sep 2, 2017 | 12:19 PM
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dbreaux's Avatar
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2018 Merceds Sprinter motorhome
I have a 2018 Merceds Sprinter.

It has the tow package installed. Why is it not engaging the brake light signal switch?
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Old Sep 2, 2017 | 01:36 PM
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GLE350d, Porsche TE
Brake signal light should come on. Trailer brakes will not without brake controller.

I'd check the plug, trailer wiring or test output on the vehicle plug
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Old Sep 14, 2020 | 08:42 PM
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E63 sold, 1972 911S, '58 Speedster, 2021 GLE 63S, Turbo 997, Aston Martin V8 Vantage 69 911 Hotrod
Hey Guys

Anyone with a MB needs to know towing is very very easy. NO BRAKE CONTROLLER NEEDED. Save all the angst. There is a little gizmo developed last year about the size of a flashlight that plugs
in between the pin connector on the car and the trailer connector. Simply plug it in and go. Takes all of 10 seconds and they work amazingly well. All lights work, it shows the amount of brake pressure on
your smart phone. Genius!!! I got it from eTrailer. I just sold my trailers last week and have 3 of these goodies I'll sell cheap. The model number is Curt Code: C51180. They are $229 and deletes the need
for a brake controller. I have 3 I'll sell for $100 as I no longer need them. All three like new. Email me if interested. Rick
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