The W123 chassis covers 240D's, 300D's, 300TD's, 280E's, and several other models of Mercedes coupes, sedans and wagons from model years 1977 to 1985.

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How to replace broken door stop check

The rear right door check snapped off close to the hinge on my 1983 300td and although it is not the biggest deal i was hopping I could replace it myself and not have to take it to someone even though its not a big deal you just need to be a little more careful closing that door I just like to have everything in perfect working order. I have read the door panel removal guide and i was wondering if anyone could give me a little more direction towards this specific problem. Also is it worth it to do it myself cause i worry that once i take the door off I'm opening myself up for more problems to arise?

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Hello Harrison,

Once you remove the door panel, removing and replacing the door check strap is fairly easy.

I am assuming that the strap portion, as it is called, broke in half? This is the most common way it fails. If so, follow along:

The first step is to use a pair of needle nose pliers and/or a screw driver to remove the C-clip that holds the pin in place where the strap connects to the body of the car. With the c-clip out, you can then use a small punch tool to tap the pin out towards the top of the door. This will let you remove the throw away the broken piece of the strap.

The next step is to remove the door panel, using the guide you referenced.

With the door panel off you can now remove the three bolts that hold the rest of the door check part. There should be one bolt at the end of the door check, furthest from the strap, on the part of the door usually covered by the panel. Then there will be two more bolts on the inside edge of the door, near where the strap protrudes out.

Once you've removed those three bolts the door check should come right out.

Now you'll just need to install the new part in the opposite order - bolt it in to the door, and then connect the strap to the body with the pin and insert the c-clip to hold the pin in place.

Good luck and let me know if you have any other questions.

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Also, note the position/location of the small white plastic spacer at the door jamb end of the check strap before removing the clip and pin. Make sure it is saved and put back in the same place for the new door check.

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harrison barfield will be eternally grateful.
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