You do not need to buy the whole expensive door latch assembly because of the small part failure.
Original replacement front or rear door latch spring will fix your door problem.
Will fit all G-Class cars from 1990 to 2010 (300GE, G320, G500, G55)
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W463 Parts 
Will fit all G-Class cars from 1990 to 2010 (300GE, G320, G500, G55) 
OEM Mercedes-Benz part, guaranteed authentic.