Will the Curt Echo Wireless Brake Controller Work w/a Factory 7-Way on a 2022Mercedes GLS?
Updated 12/29/2025 | Published 12/25/2025
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Question:
Want to purchase the Curt Echo wireless brake controller. I do have a factory installed tow package with a 7 pin connector. Online it says this fits the 2022 Mercedes GLS WITHOUT factory tow package. Will this work with mine even though I have the factory installed Tow Package or is there a similar one to purchase?
asked by: Todd A
Expert Reply:
Hey Todd. The Curt Echo Wireless Brake Controller item # C51180 will indeed work with the factory 7-Way connector on your 2022 Mercedes GLS. The only issue you may encounter is if your trailer has LED lights. If so you'll also need the Trailer Connector Adapter w/ Lamp-Out Sensor Bypass item # 20142.
The Curt Echo item # C51180 is going to plug directly into your factory 7-way. It installs on the tongue of your trailer and has a included remote that allows you to make adjustments from inside your Mercedes.
What kind of trailer are you pulling?
You can add this information, along with any other questions you have, where it says Reply to Jerred H.
Product Page this Question was Asked From
Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Plug-In
- Smartphone App
- Under-Dash
- Up to 2 Axles
- Smartphone Display
- Multiple Trailers
- CURT
more information >
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Todd A.
12/29/2025
Thank you so much Jerred! We just bought a new 6' x 12' enclosed trailer. It does have LED lights on it so we will add that adapter. Thank you! I have two different vehicles that will be pulling this trailer so thought the wireless controller was the best solution. Would you recommend something different or think this is a good solution?