I recently installed a trailer hitch and the required wiring in my 2018 GLA 250.
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I will not repeat details on the installation of the CURT 13197 Class 3 Trailer Hitch, 2-Inch receiver (from Amazon), as the installation procedure is described well in the instructions, and there are plenty of good YouTube videos on how to remove the GLA 250's taillights, and bumper. You will have to temporarily lower the exhaust and the heat shield too. I had to cut a small area out of the bumper to fit back over the hitch. Also, due to concerns about water ingression encountered on the internet, I sealed the area where the metal bumper and the hitch screw back into the GLA. With a good mechanic friend and some tools tools, this should take about two hours. This is all that was needed for a hitch mounted bike rack like the awesome pictured YAKIMA - Ridgeback Tilt-Away Hitch Bike Rack, 4 Bike Capacity (Amazon).
About a year and a half later I decided to tow a Jetski (Waverunner, Personal Water Craft, PWC). I purchased the following accessories (again on Amazon):
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I will not repeat details on the installation of the CURT 13197 Class 3 Trailer Hitch, 2-Inch receiver (from Amazon), as the installation procedure is described well in the instructions, and there are plenty of good YouTube videos on how to remove the GLA 250's taillights, and bumper. You will have to temporarily lower the exhaust and the heat shield too. I had to cut a small area out of the bumper to fit back over the hitch. Also, due to concerns about water ingression encountered on the internet, I sealed the area where the metal bumper and the hitch screw back into the GLA. With a good mechanic friend and some tools tools, this should take about two hours. This is all that was needed for a hitch mounted bike rack like the awesome pictured YAKIMA - Ridgeback Tilt-Away Hitch Bike Rack, 4 Bike Capacity (Amazon).
About a year and a half later I decided to tow a Jetski (Waverunner, Personal Water Craft, PWC). I purchased the following accessories (again on Amazon):
- CURT 59496 Weather-Resistant Powered 3-to-2-Wire Splice-in Trailer Tail Light Converter Kit, 4-Pin Wiring Harness
- CURT Class 3 Trailer Hitch Ball Mount, Fits 2-Inch Receiver, 1-Inch Hole, 4-In Rise
- Trailer Ball
- Trailer Hitch Pin
- Hitch Tightener
