G Class (W460, W461, W463) Produced 1980-2018: 290 GD, 290 GDT, 300 GD, 350 GD, 500 GE, G250, G300, G300 DT, G320, G500, G550, G55 AMG, G63 AMG

Help identifying part

Old Oct 28, 2025 | 08:49 AM
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Nygee's Avatar
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From: Nassau County , Long island NY
G63 amg. G550 4x4
Help identifying part

Hi does anyone know what hose this is or where to source. Its coming off smaller front radiator. Trying to track down a coolant leak. Looks like this is leaking but not sure if something above is dripping onto it.

Or any Long Island G repair shops recommendations

Thanks

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Old Oct 28, 2025 | 01:10 PM
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2015 G63, Sold 2010 C63 AMG Development Package
That looks like the union to the AC coils. They are just in front of the radiator. Shine a black light on it and it'll glow green if they used the fluorescent oil. I just used a refrigerant o-ring kit I got off of amazon and tried to size it up as best I could.
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Old Oct 28, 2025 | 01:37 PM
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Nygee's Avatar
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From: Nassau County , Long island NY
G63 amg. G550 4x4
Thanks. I've been checking the fluid amd it's blue like coolant. Thats why im wondering what runs through that hose and if it's even the leak source. Its wet but could be coming from fan blowing
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