Adding a Hitch
Thread Starter
Junior Member
Joined: Nov 2018
Posts: 26
Likes: 7
09, SL550 and 14 AMG GL63
Adding a Hitch
So I am adding a tow package to my 14 AMG GL63 X166. I am getting quoted about 1700 from MB dealer. This is because they have to literally disassemble interior to run the wire loom. About 10 hrs oboe quoted. Here’s the question: Do you need the wiring to the brake controller when there are now Bluetooth brake controllers? Is this just a case of slap on the Curt hitch, tap the brake light lines and call it a day? Any insight appreciated.
Super Member
Joined: Jul 2003
Posts: 963
Likes: 122
From: Illinois
2014 Mercedes-Benz GL63 AMG
So I am adding a tow package to my 14 AMG GL63 X166. I am getting quoted about 1700 from MB dealer. This is because they have to literally disassemble interior to run the wire loom. About 10 hrs oboe quoted. Here’s the question: Do you need the wiring to the brake controller when there are now Bluetooth brake controllers? Is this just a case of slap on the Curt hitch, tap the brake light lines and call it a day? Any insight appreciated.
I don't think you'll have issues, but MB did have issues with it and no longer recommends it.
Super Member
Joined: Apr 2016
Posts: 889
Likes: 148
From: Southern Illinois
, 2023 BMW X4, 1991 190E
The dealer is very expensive and Im sure you can find cheaper options from Curt hitch, Hidden hitch, etc. Each normally has a wiring harness to use. Curt or other web sites and see what they have. Also it depends on what you are towing, If towing around max tow weight that's one thing verses lighter trailer, boats etc. Most rv locations have a lot of experience on hitches, brake controller, ie blue tooth etc.
Thread Starter
Junior Member
Joined: Nov 2018
Posts: 26
Likes: 7
09, SL550 and 14 AMG GL63
There are a plethora of tow hitch options for x166
The dealer is very expensive and Im sure you can find cheaper options from Curt hitch, Hidden hitch, etc. Each normally has a wiring harness to use. Curt or other web sites and see what they have. Also it depends on what you are towing, If towing around max tow weight that's one thing verses lighter trailer, boats etc. Most rv locations have a lot of experience on hitches, brake controller, ie blue tooth etc.
