There is a black disc but I do not see any instructions for using it.Does it mount on the windshield?

REMOVAL

1. Raise and support the hood.
2. Remove the windshield wiper pivot arms.
3. Remove the cowl top vent panels.

1. Disconnect the windshield wiper mounting arm and pivot shaft.

1. Remove the access cover from the dash panel.
2. Remove the mounting arm and pivot shaft retaining clip.
3. Disconnect the windshield wiper mounting arm and pivot shaft from the windshield wiper motor.

1. Remove the windshield wiper motor.

1. Disconnect the electrical connector.
2. Remove the three bolts.
3. Remove the windshield wiper motor.

INSTALLATION

1. Install the mounting arm and pivot shaft retaining clip on the windshield wiper mounting arm and pivot shaft.

1. Install the windshield wiper motor.

1. Place the windshield wiper motor in the dash panel.
2. Install the three retaining bolts.
3. Reconnect the electrical connector.

1. Reconnect the windshield wiper mounting arm and pivot shaft.

1. Press on the windshield wiper mounting arm and pivot shaft after it is aligned with the windshield wiper motor.
2. Install the access cover in the dash panel.

1. Install the cowl top vent panels.
2. Install the windshield wiper pivot arms.
3. Adjust the windshield wiper pivot arms.

This is technically for the V6 4.2L but I'm sure those Ford E250's have the same setup for windshield wiper motor. Let me know how it goes.

There is a small set screw that holds the mirror to the small metal button. Most vehicles use a small Phillips screw but some use a Hex Key Wrench (Allen Wrench) type screw. Slide the mirror off the button. Make sure not to remove the glue before you put the button back on. Trace around the glue with a grease pencil on the outside of the windshield before you remove it. So you know exactly where to replace the button. You can buy a Rear View Mirror Adhesive Kit for around five dollars.

Tomtom GPS devices come with a variety of windshield suction mounts. All have in common that the windshield and the suction cup both must be clean; use a mild soap dispersed in some warm water to remove any dirt. Rinse properly. Sometimes it helps to keep the cup a little moist.

Make sure the cup is not warped due to previous exposure to heat, and check for any nicks in the rubber. Small damage may easily make the mount unusable and you'd need to get a replacement.

Models with a lever mechanic: open the lever (cup becomes flat), press the cup against the windshield and while keeping pressure, close the lever. It will lift the middle of the cup away from the windshield, causing a vacuum.

Models with a ring around the cup base: Turn the ring all the way counter-clockwise (cup becomes flat), press cup against windshield and while keeping pressure, turn the ring clockwise 90 degrees. This requires some force, but in my experience these mounts stick more reliable,

you put it where u like, the instructions say slightly to the right of center, check your local laws on this in some states it is illegal to mount the GPS on the glass.

I looked for instructions everywhere. I saw your complaint on the web. Call the manufacturer and see what they say. Chaz Moto Dc

its not suppose to have any adhesive on it. not sure with one (mount ) tomtom gave you with your unit (they have a few differant ones) but if its the one that looks like the one pictured below, you just press it on the windshield(make sure its good and clean)

that is absolutely the worst mount them make, normally they wont stay on long and your gps will fall off and hit the floor and most likely damage it.

you should of gotten a black plastic disk to use to put under the mount for good adhesion .

bill

the disc your talking about, is used to help secure the suction mount when the mount wont secure on its own, like to the dashboard of your car and in some instances even the windshield....

i put mine one the windshield but i do not need the disc for my truck, but not all cars or truck work without it.

the disc will help insure the unit wont fall from where its mounted but like i said, i dont use the disc unless needed.

btw, thats a nice unit you bought.

bill

The disc should have double-sided adheasive tape affixed to it. Often times a well armoralled dash doesn't make the best surface for that mount to work.

I usually cup mine to the windshield next to the rear-view mirror, but if you would perfer it to be on your dash, I recall hearing about a product called the "GPS Buddy" that provides a mounting location via one of your cup holders.

Those disc's prove pretty worthless for most vehicles.

I was perplexed by the lack of instruction as well. However, I took the unit to my car and realized that the black disk is not needed for mounting the unit to the windshield. If you look carefully at the bumpy plastic ring just above the suction area, there are two little pictures on the back of a lock; one open and one closed. With the ring in the open position, push it against the windshield and turn it to the closed position. It then sticks to the glass very well. I now just snap the unit in and out of the mounting ring that I leave stuck to the glass. I hope this helps. I assume that the presence of the black disk is to bring people closer together with digital communication.

California nor Minnesota allow windshield mounted objects.
Garmin an a few others sell a device that has an antiskid pad, has shot (lead) for weight so it stays put on the dashboard. It is shaped like a donut, about 8 or 9 inches in diameter. In the center it has a smooth surface so that you can install the suction mount that otherwise would go on the windshield. You can buy them at Wally World or Fry's. Even some of the Worst Buy stores carry them. They are $39.00 however in the first 2 places you can find at around $24.00 to $29.00. 
Z