GLS Class (X166) Produced from 2016 to 2019

GL450 to GLS550 conversion (need help)

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Old May 10, 2022 | 01:16 AM
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2014 GL450
GL450 to GLS550 conversion (need help)

I have a 2014 GL450. M278 4.7 V8. Has methanol injection, colder plugs, 40psi boost pressure. Makes more power than 550s and maybe even 63 AMGs. I love this car and have too much time and money invested into it. Can't get rid of it. Distronic Plus and pre-safe brake failed, had the car on cruise control. Hit the car in front of me. Car didn't brake. Hood, bumper, passenger side fender, lower bumper support, main bumper reinforcement, radiator support, upper bracket, all destroyed. Frame is straight. Bought a salvage side impact 2018 GLS550 as a parts car this morning. Will swap over the entire front end, rear bumper and taillights, fender flares. I need help. How do I make the headlights work? I know I need to rewire the connectors, maybe even mess with one of the SAM units and have to get some programming done. I can do anything and everything mechanical, but electronics and programming are not my strongsuit (the opposite of most 19 year olds). Please help me out if you can in regards to the headlights. My headlights are the base halogen lights btw. I will include pictures of my car and the donor car. Any and all help will be much appreciated.

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