Lubricants Can't Fix A Worn Part- I lubed my car's door hinges a hundred times- to no avail. A few years ago, the front doors on my Chrysler started creaking when I opened them. I bought my 2008 model new, and take good care of it. When I had asked the dealer about it then, I was told it was normal, and there wasn't much they could do. Oh, and they lubed the hinges every time I mentioned it.
As the years went on, the noise got worse, sounding like an old rusty truck. Finally, after days of internet research, I found that it was probably the door check. It's a small, black plastic arm that goes from the body into the door. You can't see the parts inside, but they are sealed, and made of bushings that can wear out. The best lubricant on earth can't fix a worn bushing.
So I went to a reliable auto body shop, had them look at it, and they confirmed it - and the look-see cost me nothing. I just had the work done today. The new door checks for both front doors (Chrysler parts) were about $60 each (Aug. 2015). With labor, the bill was quite reasonable at about $170.00 for parts & labor. I didn't want to do it myself as I was a bit leery of removing the door panels.
The doors are now silent, and the tech explained that the internal parts of the door check were worn out. Trying to lube them at that point would have done little good, but if they HAD been lubed properly by my dealer at oil changes over the years, they'd have lasted longer. Sadly, NO oil change & lube place ever lubricates anything these days... Including car dealers.
He showed me how and where to lube them with LITHIUM spray. Do NOT use WD-40.
By the way, don't accept the "normal wear & tear" line. It happens to lots of car brands, and can be fixed. Some people have had these things break, and parts fell into the electric window mechanism. I've read reports of Mercedes and Chevy owners going through the same thing.
I hope this answer helps. If lubing up your hinges doesn't last, have your door check looked at.
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