Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
User Name
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management

LinkBack Thread Tools Display Modes
Old 02-03-2021, 03:41 PM
Join Date: Aug 2020
Location: Los Angeles
Posts: 48
thstone is on a distinguished road
Tow Hitch/7-Pin Connector/Brake Controller

Generally I like to DIY whatever I can because I like working in my workshop and find it to be a great stress-reliever from my work life.

After looking into DIY'ing a receiver hitch, brake controller, 7-pin connector, and the associated wiring, I decided that it was best and safest to have a professional do the installation. There were too many stories about problems wiring in brake controllers, LED trailer lights, signal multiplexing, etc. and was worried that I'd end up with an install that didn't fully work properly.

So I had a local trailer/hitch shop do the install and they recommended a Teknosha Prodigy P2 brake controller along with a welded/bolted 10,000 lb receiver hitch.

For my first tow, I am renting a U-Haul 6x12 trailer on Friday to get some experience towing something around and so I can start to learn how to back up with a trailer.

Then in two weeks I am renting a 22' Forest River Wolfpup Model 16PF travel trailer (loaded tow weight around 4400 lbs with 400 lb tongue weight) to stay at Buttonwillow Racepark about 140 miles north of LA while I auto race for a 3-day weekend. I will be using the trailer owners weight distributing hitch with sway control.

I am looking forward to see how the E53 tows and handles that kind of weight on the freeway and especially over the Grapevine/Tejon Pass north of LA where Interstate 5 goes from 1,360 ft in San Clarita to 4,120 ft at the top of the pass and then down a fairly steep decent into the Central Valley ending at 1,500 ft.

If all goes well with towing on the trip to the Central Valley, it is highly likely that I will purchase a similar 22'/5000 lb max weight travel trailer to use for traveling around the country to auto race and for camping/hiking. Previously, we've rented various Class C RV's for camping/hiking trips and I would really like to have a rig of our own.
Attached Images
Reply With Quote

Sponsored Links

Old 02-03-2021, 07:48 PM
Join Date: Apr 2019
Location: Boston, MA
Posts: 383
Effduration is on a distinguished road
Wow- so you didn’t use the OE Westfalia-made E53-specific hitch? Did you use the OE wiring harness and module ?

Love to see how the hitch is mounted.. the OE hitch is Pretty well engineered.
Reply With Quote
Old 02-03-2021, 08:08 PM
Overboost's Avatar
//Binary is in my DNA
Join Date: Apr 2006
Location: Huntersville, NC
Posts: 3,017
Overboost is on a distinguished road
I'm anxious to hear how the 3.0L does pulling the 4400 lb trailer up the Grapevine. That will be 10,000 lbs trying to go the opposite direction somewhere around Gorman.
Reply With Quote
Old 02-03-2021, 08:30 PM
Join Date: Mar 2017
Location: NWOhio
Posts: 196
absolutezero273c is on a distinguished road
Originally Posted by Effduration View Post
Wow- so you didnít use the OE Westfalia-made E53-specific hitch? Did you use the OE wiring harness and module ?

Love to see how the hitch is mounted.. the OE hitch is Pretty well engineered.

I have to second this. My son and I pulled an OE hitch off an E53 parts car we purchased and I was very impressed with the engineering, design and integration.
2005 Titanium Silver X5 4.8is (DD winter) * 2001 Steel Blue 750iL (DD summer) * 2001 Ford Excursion 7.3 L <> 2005 X5 3.0 * 2003 X5 4.4i * 2009 X3 3.0 * 2009 X5 3.0 * 2007 Toyota Avalon Limited
Reply With Quote
Old 02-04-2021, 04:05 PM
Join Date: Aug 2020
Location: Los Angeles
Posts: 48
thstone is on a distinguished road
Thanks for the comments!

I'll have to see about removing the rear bumper cover to take some photos of the hitch mounting points. If I had to guess, I would say that the hitch most likely mounts like the DrawTite aftermarket hitches to the rear subframe bumper mounts.

The portion of the hitch that goes under the car towards the differential is welded to the rear subframe instead of bolting to a rear crossmember like the DrawTite hitch.

The installer did use an OEM 7-pin connector, harness, and electronic module which they interfaced with the external trailer brake controller and added LED trailer light compatibility.

I'm all set to pick up the U-Haul trailer tomorrow to practice driving and backing. Then I'll let you know how it tows the travel trailer in a couple of weeks.
Reply With Quote
Old 03-15-2021, 09:42 PM
Join Date: Nov 2018
Location: Canada
Posts: 367
c-bass is on a distinguished road
Thanks to the great info in here I'm happy to report Swampy and I will be joining the cool kids club

While we wait I'm hoping to score a decent used set of something in a 265/70/17 size. We'll see if I get lucky
Reply With Quote
Old 03-16-2021, 12:26 PM
Join Date: Jan 2020
Location: Vancouver Island
Posts: 56
alberniken is on a distinguished road
I have a 2001/3.0 and had no problems towing 3 tons (car on deck trailer) over mountain passes with up to 10% gradient at it steepest, without being too much of a PITA to other motorists

I have no supporting upgrades such as air suspension, heavier springs, or equalizer hitch. Just be sure to balance the load properly.

Reply With Quote
Old 03-23-2021, 10:53 PM
Join Date: May 2017
Location: SDCA
Posts: 1
device2 is on a distinguished road
thStone, great job on the X5 and it looks awesome. I'm in the process of acquiring an electric brake controller and adding it to my X5. I plan to eventually start making the stock looking SUV into one of these more outdoor adventuring ones. I have some nice AT tires on it now and the 7 pin Hitch installed. I want to add the LED light bar or squared light on the roof rack as well as a few more things here and there as time goes on.
Reply With Quote
Old 04-04-2021, 11:23 PM
Join Date: May 2020
Location: Washington
Posts: 55
plasstik is on a distinguished road
Lift spacer

Thstone, have you seen this? https://www.youtube.com/watch?v=aELNPl5Qrmw
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 10:10 AM.
vBulletin, Copyright 2021, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.