...Max...

Another hot day (such a surprise in Texas, after all!) and the doors squeak like crazy again. Was on and off before, but now it is positively irritating. By putting my finger on different bits of the hinge I think I have established the one that vibrates:



So does it look like something I can lube -- and if so, how, WD40 on the pin? -- or is it a symptom that is best addressed by the dealer under CPO?

KM1959

WD-40 is a NOT a lubricant, it's a solvent. Best to use a foaming silicone spray because it is invisible and doesn't attract dust.

Jnosol

White Lithium Grease Spray should do the trick

...Max...

Checked my shelves... how about Breakfree CLP? What's good for a gun...

jennifer911

Max, that is not a door hinge in your picture, in the auto industry it is typically referred to as a door brake. Notice that it is made of a composite material and if you rub your finger over the exposed part you will feel some indents. These work with a pair od spring loaded steel rollers just out of sight inside the door. The purpose of this component is to provide three distinct detents that hold the door open at different amounts and to keep the door from overextending. The factory lube seems to be a chalky dry silicone lube. A quick available substitute would be a spray can of lithium grease. It sprays out a straw like tube as a liquid, but quickly dries to a thin coating of grease. (This is handy thing to have in the in the garage with multiple uses)
On our car the single exposed bolt in your picture came a little loose, this made a creaking noise every time the door was opened. Tightening it up fixed the squeaky creak.

...Max...

Jennifer -- thank you for the idea! I tried lithium grease on the exposed part already to no effect, now off to find a big enough torx bit as I don't seem to have one handy...

...Max...

...that's an XZN bolt though, not a Torx -- isn't it? :-(

jennifer911

Max, that is not a torx bit, it is a metric M8 12-point bit (sometimes called a triple square). Euro cars are loaded with these bolts.

jennifer911

yes also called a xzn bolt

jennifer911

If the bolt is loose, you should be able to see and feel the base move around.

...Max...

Doesn't seem to be the case then... also the creak comes somewhere near detents and not in between...

Porsche Jeff

This worked for me when my door hinge squeeked.

CamsPorsche

Same issue here with my passenger door so I'll try both lithium grease or tightening the bolt

aspriggsdds

I had the same problem. The dealer attempted to lube the piece, but it didn't work. They ended up replacing the parts on both the drivers and passengers side under warranty.

bittrl1000

My doors creeked, and the dealer fixed it by "lubing the hinges" under warranty. Unfortunately, I don't know exactly what they did.