Trailer hitch wires - MBWorld.org Forums

Sep 19, 2018 | 11:33 AM

B25gby

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Newbie

Joined: Sep 2018

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Mercedes Benz ML 250

Trailer hitch wires

PLEASE HELP I installed trailer hitch and wire harness Teconsha 119251 and not working right

Sep 23, 2018 | 01:26 AM

fabbrisd1

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Joined: Nov 2012

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A gaggle of MB's

Frankly - I would suggest you find a U-Haul installation store and pay them to track this down and fix for you.... you will need to run power tap for the Modulite to the battery by the way..

Sep 23, 2018 | 01:51 AM

B25gby

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Newbie

Joined: Sep 2018

Posts: 2

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Mercedes Benz ML 250

Eires

I did all that I changed 3 modules still not working...Im guessing it needs a trailer module in dashboard or back of car ....im not giving up love the mileage however I will never buy a mbz again

Sep 24, 2018 | 11:02 PM

jrsmith_68

Member

Joined: Aug 2007

Posts: 228

Likes: 39

From: Peoria, IL

2007 C350 2015 ML400 1968 Ford Mustang

Quote:

Originally Posted by B25gby

I did all that I changed 3 modules still not working...Im guessing it needs a trailer module in dashboard or back of car ....im not giving up love the mileage however I will never buy a mbz again

Not sure what Mercedes Benz has to do with this module not working. What are you using for power? You have it set up for a 3 wire system?