RUST! Check your 955 in front wheel area (see pictures)
#1
RUST! Check your 955 in front wheel area (see pictures)
FRONT both sides on my 955 had a lot of rust in this spot. Where a lot of sand in there that kept moisture. Remove wheel-well cover and have a look.
I removed rust with a screwdriver, impossible to reach with electric tools. Used a rust-penetrating oil, after that rust-killer (orange) and top coat with a thick black sticky body-compound.
It was only a centimeter or two before it would be visible on outside body. Let's pray the oil have stopped this cancer.
I removed rust with a screwdriver, impossible to reach with electric tools. Used a rust-penetrating oil, after that rust-killer (orange) and top coat with a thick black sticky body-compound.
It was only a centimeter or two before it would be visible on outside body. Let's pray the oil have stopped this cancer.
#3
The V8 Porschephile
Rennlist Member
Rennlist Member
KJBU, thanks for the heads-up. Now that the P!gs are getting old and weathered, we should all check this area for corrosion.
After having numerous issues with rusting license plate lamps over the years, the other day I went to replace my RH lamp and the whole area around the body aperture is severely corroded. We're talking flaking rust here. Will post images this weekend on a separate post.
After having numerous issues with rusting license plate lamps over the years, the other day I went to replace my RH lamp and the whole area around the body aperture is severely corroded. We're talking flaking rust here. Will post images this weekend on a separate post.
#4
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That area is a catch-all for any crud/leaves/whatever that washes off the windshield. If you follow the water path from the windshield, it all washes down into that area. The munge (tech-term) builds up, captures moisture and stays wet, and rust will be the result.
When I had a 955 - I made it a habit of popping off the sill trim pieces every year and washing/cleaning the area out. No rust on an '06 that lived it's entire life in the salt-belt of NJ.. Took about 5 minutes per side to do.
You may want to pre-order the little rubber nipple sort of things that go into the holes and the trim piece pushes into. They do get old and torn. I still have a bunch that I ordered before I sold mine, intending to do my annual spring cleaning... They're a few $$ each, so it's not a wallet-breaker part - but bet no dealer carries it in stock.
When I had a 955 - I made it a habit of popping off the sill trim pieces every year and washing/cleaning the area out. No rust on an '06 that lived it's entire life in the salt-belt of NJ.. Took about 5 minutes per side to do.
You may want to pre-order the little rubber nipple sort of things that go into the holes and the trim piece pushes into. They do get old and torn. I still have a bunch that I ordered before I sold mine, intending to do my annual spring cleaning... They're a few $$ each, so it's not a wallet-breaker part - but bet no dealer carries it in stock.
#5
Nordschleife Master
Good to know! When I had my front wheel cover out to do the charge pipe seals I noticed the abundance of leaves and dirt collecting in there and promptly cleaned it out. I will continue to check it every year.
#6
Cayennes seem to be pretty prone to rust in certain areas. This is how my right back passenger door looks like after the winter (2008 957CTT 75k miles). The rust must have been there before but I noticed it only this spring while giving it s proper wash down.
The car still has body warranty left for 3 years, but the Porsche Center told me "tough luck mate" as the car has been serviced at a porsche indy, and is missing some body inspection stamps.
The car still has body warranty left for 3 years, but the Porsche Center told me "tough luck mate" as the car has been serviced at a porsche indy, and is missing some body inspection stamps.
#7
WOW, I have the same bulky paint on THE SAME DOOR (right back door). 2004 955, so there are no warranty left there. I will try to fix this before next salty winter.
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#8
The V8 Porschephile
Rennlist Member
Rennlist Member
Most mfrs use pre-treated galvannealed sheet metal that prevents premature surface corrosion. Unfortunately, once this metal is cut, this portion is not protected; hence the requirement for a body sealer.
In the case of the door panel, once the sheet metal is cut/sheared and hemmed (180° bend towards itself), the factory robots will apply a body sealer directly onto the hem in order to protect this portion and prevent corrosion. As much as the robot does its job by following a pre-programmed route, unfortunately, it's not uncommon for air pockets to exist within the system and some parts to fall short of being protected.
This is a perfect example of where missing or a thin amount of sealer can eventually lead to corrosion.
In the case of the door panel, once the sheet metal is cut/sheared and hemmed (180° bend towards itself), the factory robots will apply a body sealer directly onto the hem in order to protect this portion and prevent corrosion. As much as the robot does its job by following a pre-programmed route, unfortunately, it's not uncommon for air pockets to exist within the system and some parts to fall short of being protected.
This is a perfect example of where missing or a thin amount of sealer can eventually lead to corrosion.
#9
Thanks to this thread and after seeing the rust start to bubble up under the paint on my fender, I took off the plastic covers for the first time in a decade... Little did I know. Pictures posted below as a word to the wise, look soon, as most of the fender is just gone. Oh, BTW, the passenger side is exactly the same.
Of course I'm 2 years past the corrosion warranty from Porsche.
Next up I will epoxy on a sheet of rubber and then spray then entire area with rubberized undercoating. Put it back together, adding a few screws or similar to keep things together.
BTW, after 185,000 miles, otherwise the Cayenne is nearly perfect!
Arghhh!!!!
After taking off the plastic piece and washing out the 2" of muck
Sandblasting
Clean
Corroseal rust converter
Of course I'm 2 years past the corrosion warranty from Porsche.
Next up I will epoxy on a sheet of rubber and then spray then entire area with rubberized undercoating. Put it back together, adding a few screws or similar to keep things together.
BTW, after 185,000 miles, otherwise the Cayenne is nearly perfect!
Arghhh!!!!
After taking off the plastic piece and washing out the 2" of muck
Sandblasting
Clean
Corroseal rust converter
Last edited by David944s2; 11-02-2019 at 07:07 PM.
#10
Burning Brakes
I renewed my membership earlier today and it's posts like this that make it worth every penny.
Just went to the garage and pulled those lower fender caps off my '04. Driver side had some sand build up and a tiny speck of rust at the very bottom edge. Passenger side had no build up at all.
Used the air compressor to clean out the cavities, flushed with brake parts cleaner, dried with more air and then sprayed the lower areas with Rustoleum rust converter. I now plan on doing this once a year during its oil change.
Those green rubber nubs seem fragile...anyone have the part #?
Just went to the garage and pulled those lower fender caps off my '04. Driver side had some sand build up and a tiny speck of rust at the very bottom edge. Passenger side had no build up at all.
Used the air compressor to clean out the cavities, flushed with brake parts cleaner, dried with more air and then sprayed the lower areas with Rustoleum rust converter. I now plan on doing this once a year during its oil change.
Those green rubber nubs seem fragile...anyone have the part #?