Trailer Brake Controller and 7-Way Installation on 2012 Mercedes-Benz GLK 350 4-Matic
Question:
Can a harness be added or current factory installed 5 pin harness be modified to allow for electronic trailer brakes. I have factory installed class II 3500 lbs. hitch installed. California requires electronic brakes, current harness is a 5 pin.
asked by: Tom B
Expert Reply:
We can help you upgrade the trailer wiring on your 2012 Mercedes-Benz GLK 350 to the 7-way type to enable use of a trailer brake controller like the excellent Prodigy P3 # 90195.
Kit # ETBC7 includes a 7-way vehicle socket and all of the connectors and components needed to install a brake controller. This will be a hardwire installation as shown in the linked article and video which shows a Mercedes-Benz install.
You can avoid the connection issues and hassles of using wiring adapters by converting your trailer over to the same 7-way format. The simplest way is to use a pre-wired junction box # HS381-9000 which allows you to easily make the necessary wiring connections on the trailer using ring terminals # 44-5310A.
Products Referenced in This Question
Ring Terminal - 12-10 Gauge Wire - 3/16" Ring ID
- Wiring
- Wire Connectors
- Ring Terminals
- 3/16 Inch Diameter
- 12-10 Gauge
- Flint Hill Goods
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Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
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Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
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Wiring Kit for Hydrastar Electric Over Hydraulic Actuators
- Accessories and Parts
- Brake Actuator
- Disc Brakes
- Hydraulic Drum Brakes
- Wiring
- Hydrastar
more information >
Product Page this Question was Asked From
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- Universal Fit
- 4 Flat
- Tekonsha
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