G-class rust
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
Krown is GARBAGE. Worthless product that won’t last you a single winter.
Im not sure if it’s conductive or not though I’ve never heard of a car fire starting from Krown, but the product itself is trash.
NHoil is pretty good, but you may have to learn to do it yourself because most services don’t use really good anti rust products.
Im not sure if it’s conductive or not though I’ve never heard of a car fire starting from Krown, but the product itself is trash.
NHoil is pretty good, but you may have to learn to do it yourself because most services don’t use really good anti rust products.
Thanks for the video. I'm going in to KROWN to have their oil sprayed in the body crevices as well as the frame- Do you know if their oil is potentially flammable as well? They do this throughout the country and canada, so I'm guessing they've done their homework, but I thought I'd get your opinion.
Senior Member
Joined: Oct 2021
Posts: 281
Likes: 61
2011 G550
Krown is GARBAGE. Worthless product that won’t last you a single winter.
Im not sure if it’s conductive or not though I’ve never heard of a car fire starting from Krown, but the product itself is trash.
NHoil is pretty good, but you may have to learn to do it yourself because most services don’t use really good anti rust products.
Im not sure if it’s conductive or not though I’ve never heard of a car fire starting from Krown, but the product itself is trash.
NHoil is pretty good, but you may have to learn to do it yourself because most services don’t use really good anti rust products.
OK- How about valugard (a linex product)? It’s thick and I have a local service provider who can spray it.
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
I’d spray a creeping oil on the hinges and cover them with a heavy grease (Wurth, Lucas red n’ tacky, etc). The penetrating oil will get deeper than the grease but the grease will be longer lasting and protective on the outside. Allow a day between application of both to allow the oil to expel any water. Or just make sure your truck is in a hot and dry garage for a few days.
Senior Member
Joined: Oct 2021
Posts: 281
Likes: 61
2011 G550
Can I ask what your experience with Krown was? I am only seeing people praise them online, but would value your input here. DIY isn't an option as I don't have the space for it, or the time, unfortunately.
I'm either between Valugard, Krown, or potentially Fluid Film as there is another outfit that does that. The issue I hear fluid film has is that it can cause rubber to swell. I don't want to induce any leaks in any of my drivetrain components. Krown told me they liberally spray everything rubber with silicone before applying their oil undercoating.
I'm either between Valugard, Krown, or potentially Fluid Film as there is another outfit that does that. The issue I hear fluid film has is that it can cause rubber to swell. I don't want to induce any leaks in any of my drivetrain components. Krown told me they liberally spray everything rubber with silicone before applying their oil undercoating.
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
Krown just doesn’t last. Washes off quickly. Fluid Film is okay, but miles ahead of Krown.
Can I ask what your experience with Krown was? I am only seeing people praise them online, but would value your input here. DIY isn't an option as I don't have the space for it, or the time, unfortunately.
I'm either between Valugard, Krown, or potentially Fluid Film as there is another outfit that does that. The issue I hear fluid film has is that it can cause rubber to swell. I don't want to induce any leaks in any of my drivetrain components. Krown told me they liberally spray everything rubber with silicone before applying their oil undercoating.
I'm either between Valugard, Krown, or potentially Fluid Film as there is another outfit that does that. The issue I hear fluid film has is that it can cause rubber to swell. I don't want to induce any leaks in any of my drivetrain components. Krown told me they liberally spray everything rubber with silicone before applying their oil undercoating.
Senior Member
Joined: Oct 2021
Posts: 281
Likes: 61
2011 G550
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Member
Joined: Oct 2005
Posts: 145
Likes: 14
02 ML320
Junior Member
Joined: Sep 2004
Posts: 41
Likes: 2
From: In a house
G550-2015, ML350 - 2012, e350 wagon 2007
I've posted before on my 2010 G-550...55k miles, very well taken care of, and rust bubbles forming under the front windscreen, around the rear door hinges and along the side door sills.
I'm going back and forth with Mercedes to see if I can get them to correct these issues. Even if they do, I still need to figure out long term preventative strategies to prevent this from happening again. So far, they include lubricating all hinges with LPS on a weekly basis and running a dehumidifier in my garage, along with using fans to dry out the undercarriage, but I'm not sure how to go about protecting the chassis, or rust proofing hard to reach areas (i.e. the underside of the doorsills or the metal directly below the front windscreen.
Does anyone have experience in rust restoration/prevention? What are my options?
I'm going back and forth with Mercedes to see if I can get them to correct these issues. Even if they do, I still need to figure out long term preventative strategies to prevent this from happening again. So far, they include lubricating all hinges with LPS on a weekly basis and running a dehumidifier in my garage, along with using fans to dry out the undercarriage, but I'm not sure how to go about protecting the chassis, or rust proofing hard to reach areas (i.e. the underside of the doorsills or the metal directly below the front windscreen.
Does anyone have experience in rust restoration/prevention? What are my options?
Right Side bottom sill
Left side bottom sill.
I am having some problems myself.
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
Once you get that fixed, you need to fill the cavity underneath the sills with anti-corrosive oil or grease. You can access it by removing the bolts that connect the running boards to the body of the vehicle.
Junior Member
Joined: Sep 2022
Posts: 57
Likes: 10
From: Calvert County Maryland
2016 G550. Bone stock.
SUGGESTION:
In the interest of helping older model G Wagon members better understand where the rust issues are and what Mercedes has done to correct them I propose we use pictures of the new 2019 and 2020 models as a comparison.
For example;
1. WINDSHIELD - The new models no longer have a rubber seal to hold the windshield in. So water that was being trapped under the rubber seal is eliminated.
2. As Surge pointed out, it seems that there are zinc coated bolts, hinges and spacers between the body and the actual hinge on the rear door hinges along with a waterproof grease on the pins.
3. DOOR AND REAR HATCH HINGES - Having read all of the posts here I am thinking that the rubber boots around the door hinges and wiring harnesses are water retainers on all models new and old.
4. SIDE WINDOW RUBBER SEALS - Another potential rust area. If you pay careful attention you will see water running out from under these seals after a rain or wash as you dry the car. so determing where it is entering will help develop a rust preventative solution.
5. MB SERVICE AND INSPECTION - I think checking with your MB dealer mechanic or service writer would be a great source to obtain blank copies of the periodiic inspection reports and check lists that MB technicians use on G Wagons in for service.
To be sure, MB uses customer service and complaint feedback to continuously build a better mouse trap in the new models. So we have an opportunity to learn what they already know and what ther correction processes are for these issues.
I have a 2020 G63 Wagon and would be willing to take pictures of various areas to be used for comparison purposes to aid in developing solutions.
Regards
Jerry
In the interest of helping older model G Wagon members better understand where the rust issues are and what Mercedes has done to correct them I propose we use pictures of the new 2019 and 2020 models as a comparison.
For example;
1. WINDSHIELD - The new models no longer have a rubber seal to hold the windshield in. So water that was being trapped under the rubber seal is eliminated.
2. As Surge pointed out, it seems that there are zinc coated bolts, hinges and spacers between the body and the actual hinge on the rear door hinges along with a waterproof grease on the pins.
3. DOOR AND REAR HATCH HINGES - Having read all of the posts here I am thinking that the rubber boots around the door hinges and wiring harnesses are water retainers on all models new and old.
4. SIDE WINDOW RUBBER SEALS - Another potential rust area. If you pay careful attention you will see water running out from under these seals after a rain or wash as you dry the car. so determing where it is entering will help develop a rust preventative solution.
5. MB SERVICE AND INSPECTION - I think checking with your MB dealer mechanic or service writer would be a great source to obtain blank copies of the periodiic inspection reports and check lists that MB technicians use on G Wagons in for service.
To be sure, MB uses customer service and complaint feedback to continuously build a better mouse trap in the new models. So we have an opportunity to learn what they already know and what ther correction processes are for these issues.
I have a 2020 G63 Wagon and would be willing to take pictures of various areas to be used for comparison purposes to aid in developing solutions.
Regards
Jerry
I was considering cutting out my windshield seal and filling in the gap with a ton of RTV, to truly seal out water, but when I looked under the seal I discovered a tiny paint bubble... so the rust has already started. Too late.
I've decided to not stress and just enjoy the vehicle and drive the hell out of it. In 10 years it will rust out and I'll either have a large repair bill to replace the windshield frame or I'll sell it for a pittance and move on. Or who knows maybe next year I'll total it or even die of a stroke and none of this even matters. There are 24 hours in each a day and I don't plan to spend even a minute more worrying about it. I love my G, it was my dream car for 10 years and now I finally have it. Screw Mercedes for being a typical money grubbing corporation, sacrificing long term quality for their bottom line. They know most new G customers don't keep theirs long term. They keep them for a couple years, then sell them to guys like us and go buy themselves new ones. Mercedes serves those rich guys, not us. But like I said, why stress. Life is short.
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
I talked to an MB body shop manager and he said the G windshield seals are not structural, meaning they do not hold the windshield in. The windshield is held in purely by the glass adhesive used during installation. The seals are just there to fill the gap between the glass and the body, and prevent water from getting in there. Obviously the seals do not work for that purpose. If you ever drive in rain, the force of the wind pushes water past the seals. The design is the failure.
I was considering cutting out my windshield seal and filling in the gap with a ton of RTV, to truly seal out water, but when I looked under the seal I discovered a tiny paint bubble... so the rust has already started. Too late.
I've decided to not stress and just enjoy the vehicle and drive the hell out of it. In 10 years it will rust out and I'll either have a large repair bill to replace the windshield frame or I'll sell it for a pittance and move on. Or who knows maybe next year I'll total it or even die of a stroke and none of this even matters. There are 24 hours in each a day and I don't plan to spend even a minute more worrying about it. I love my G, it was my dream car for 10 years and now I finally have it. Screw Mercedes for being a typical money grubbing corporation, sacrificing long term quality for their bottom line. They know most new G customers don't keep theirs long term. They keep them for a couple years, then sell them to guys like us and go buy themselves new ones. Mercedes serves those rich guys, not us. But like I said, why stress. Life is short.
I was considering cutting out my windshield seal and filling in the gap with a ton of RTV, to truly seal out water, but when I looked under the seal I discovered a tiny paint bubble... so the rust has already started. Too late.
I've decided to not stress and just enjoy the vehicle and drive the hell out of it. In 10 years it will rust out and I'll either have a large repair bill to replace the windshield frame or I'll sell it for a pittance and move on. Or who knows maybe next year I'll total it or even die of a stroke and none of this even matters. There are 24 hours in each a day and I don't plan to spend even a minute more worrying about it. I love my G, it was my dream car for 10 years and now I finally have it. Screw Mercedes for being a typical money grubbing corporation, sacrificing long term quality for their bottom line. They know most new G customers don't keep theirs long term. They keep them for a couple years, then sell them to guys like us and go buy themselves new ones. Mercedes serves those rich guys, not us. But like I said, why stress. Life is short.
I discovered rust on the windscreen right before Covid hit. I filled the gap with WD40 corrosion inhibitor (used a long aerosol straw and inserted it behind the seal). I finally fixed the rust in November of 2021. During that time (nearly 2 years) the rust didn’t progress at all. The oil seeped into the corrosion and stopped it from continuing to form.
That’s your best bet right now - oil the hell out of the windscreen and every other known problem area. Makes a big difference.
Junior Member
Joined: Sep 2022
Posts: 57
Likes: 10
From: Calvert County Maryland
2016 G550. Bone stock.
Fill the space behind the seal with rust-inhibiting grease or oil.
I discovered rust on the windscreen right before Covid hit. I filled the gap with WD40 corrosion inhibitor (used a long aerosol straw and inserted it behind the seal). I finally fixed the rust in November of 2021. During that time (nearly 2 years) the rust didn’t progress at all. The oil seeped into the corrosion and stopped it from continuing to form.
That’s your best bet right now - oil the hell out of the windscreen and every other known problem area. Makes a big difference.
I discovered rust on the windscreen right before Covid hit. I filled the gap with WD40 corrosion inhibitor (used a long aerosol straw and inserted it behind the seal). I finally fixed the rust in November of 2021. During that time (nearly 2 years) the rust didn’t progress at all. The oil seeped into the corrosion and stopped it from continuing to form.
That’s your best bet right now - oil the hell out of the windscreen and every other known problem area. Makes a big difference.
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
Thread Starter
Super Member
Joined: Oct 2017
Posts: 699
Likes: 149
2015 SL550, 2017 GLS 550, 2010 G550, 1995 E320 Cabriolet
