I have NO experience with Sprinter vans and need to know how to check the fluid level using the Mercedes dipstick, which I purchased today from the dealer. My customers serpentine belt broke going down the highway, and took out the trans cooler hose. He had it towed to our shop and we found out what happened. So I called the dealer for the fluid and the dipstick, and when we went to chreck the fluid, the dipstick doesn't go all the way in the tube? It is a 2006 2500 series Sprinter. Any help would be great.