I just did my own front and rear window seals recently. Each seal is around $200 for mb genuine, and having a professional do the job will probably take atleast 4hrs or more. It took me about 20hrs, but I had to learn a lot in the process. I could probably do both now in a day depending on how much old rubber/sealant was stuck to the body. So tack on an extra $1000 to planned expenses if you're gonna be getting those windshield seals redone.

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76' 240D