Ah Thomas, you've damaged the fuel gauge coolant supply. It's connected to the little tank under the bonnet. You know, the one you put water in when the engine gets too hot. It's an easy fix, just rest your finger tips on the top of the expansion tank with your wrists resting on the bonnet slam panel. Apply light pressure downwards and get a friend to slam the bonnet. It won't help the fuel gauge, but it means you won't be able to type any more @##@#@s like this for a few weeks
You're welcome
