To find the precise towing capacity for *your* specific E250 van, you should:
* Check the sticker on the driver's side doorjamb: This sticker lists the vehicle's specifications, including its maximum towing capacity.
* Consult your owner's manual: This manual will provide detailed information about towing capabilities and any limitations.
* Check the Mercedes-Benz website: You can often find specifications for different model years and trims on the manufacturer's website.
Without knowing the specific year and configuration of your E250, providing a definitive answer is impossible.