G-class rust




Talk to MBUSA. They might help. Be sure to inspect your truck top to bottom for any more rust. If they do agree to repair it, they will only do so once.
If you’d like I can walk you through how to rust proof the underside of this metal to prevent further corrosion.








The plate is loose at the edges but seems to be pretty securely fastened at both the front and rear of the skid plate. I can't seem to locate where it's held in. Also not sure how I'm going to get the screws out of the holes. I suppose I'll have to drill them out, or maybe I'll take it to a mechanic and have him remove the screws, the skid plate and let me know how to reattach it (I'd like to sand down the surface corrosion and respray it + replace the screws with stainless steel hardware):
I've also seen some good things about Cosmoline RP-342 for the undercarriage.
I've been thinking about buying a G for some time now but these rust issues always give me pause but these are the things I ran into while researching. Anyone use any of these things or have thoughts on them?
Last edited by Yes_Sir; Sep 14, 2022 at 12:41 PM.
The Best of Mercedes & AMG
I've also seen some good things about Cosmoline RP-342 for the undercarriage.
I've been thinking about buying a G for some time now but these rust issues always give me pause but these are the things I ran into while researching. Anyone use any of these things or have thoughts on them?
CRC Heavy Duty Corrosion Inhibitor, 10 Wt Oz, 06026 https://a.co/d/dbBydJ9
Last edited by PeriodCorrect; Sep 14, 2022 at 01:09 PM.
The good thing about the ACF-50 is it is not greasy or oily and people spray it on paint. Not sure I would do that but it might be a good solution for the hinges, running boards and outside exposed areas where there are bolts, etc..
http://www.acf-50.co.uk/automotive.h...dustrial%20use.
need to see what Rust Block is about
They're obvious factory paint flaws Both rear doors, around handle 2. Rear hatch, around handle 3. Rear left, below the hatch/above bumper 4. Drivers door pillar, rock chip 5. Drivers door, bottom by chrome piece 1. Both rear doors, around handle 2. Rear hatch, around handle 3. Rear left, below the hatch/above bumper 4. Drivers door pillar, rock chip 5. Drivers door, bottom by chrome piece
1. Both rear doors, around handle
2. Rear hatch, around handle
3. Rear left, below the hatch/above bumper
4. Drivers door, bottom by chrome piece
6. Spot by black trim, passenger side
MESS:







WORK IN PROGRESS:



Last edited by croat; Oct 10, 2022 at 01:57 PM.




Make sure to use a dehumidifier in your garage from here on out, and use oil to lubricate the truck as best as possible. I can tell you about all the spots to hit if you’d like.








Again, if you have a garage, fans and a dehumidifier are your friend. Use at least one fan to dry the chassis, one fan to circulate air over the truck and a dehumidifier set to its lowest setting (most non-industrial dehumidifiers can bring ambient humidity down to 35%. Lower is better but 35% is good)




Note: In the video I said to use LPS or WD40 Corrosion Inhibitor but I'd skip those oils as they are potentially flammable. Use a good spray grease with a high drip point such as B'Laster Surface Shield or Lucas Red n' Tacky aerosol:
Hope you enjoy!
https://www.youtube.com/watch?v=I1hTA55BjUU






