I had a really hard time searching for this on here, so I figured I would pass on the info. For those of us with the factory installed block heater, this is the exact cord for it. It fits in and threads on to the factory block heater as MB intended. The only difference between this one and the dealer cord is there is no insulation, but I don't think it's necessary. It's easy enough to install and remove that I will probably just remove it when it warms up and reinstall the cap.

For the record, this is the same cord used on Ford/Dodge trucks as well as many tractors and semi trucks.

Under $15.00 shipped if you have Prime.

Kat's 28216 6' Replacement Cord : Amazon.com : Automotive

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- Johnny

1990 300D 2.5L - 135k
1998 Jetta TDI - 257k
2005 E500 - 117k