Someone else was in the driver seat and they were trying to drive. At one point I took out the key and when he put it back in the car wouldn't start. This was yesterday and it still won't start. The brake pedal is stiff and won't move and I can't get the gear down from park. The steering wheel won't move either. If I insert the key it clicks and if I turn it it clicks as well. The display does turn on and so does the radio.

It's a Mercedes Benz E-200 from 2010.

Here is the result from the multimeter test:

[![enter image description here](https://i.stack.imgur.com/GDOb8.jpg)](https://i.stack.imgur.com/GDOb8.jpg)

I also bought this kit to jump-start the car:
<http://www.halfords.com/workshop-tools/garage-equipment/jump-leads/phaze-4-in-1-jump-starter>

It did not work.