I need a new expansion tank (1245001849) for my 1987 W124 300D, like this one offered by our host site here:

1987 Mercedes-Benz 300D Base Sedan - Radiators - Page 3

However, I have tried 5 places now (Peach, parts.com, ebay, autohauz) and everyone accepted my order then sent an email saying they don't have it and are issuing a refund. Called the Dealer and they say it is unavailable and out of production.

Anyone know where to get one?

Thanks,

Geoff