Your seat leon 1.8turbo has stoped working n the engin is ticking bad even tho i have topped the oil up any ideas what could be wrong thanks?

I would try buying new spark plugs or it could be a leak under the hood that could be hitting against metal.also get your transmission checked. other things you should check the following:

1. brakes

2. bolts and tires

3. bearings, if any.

4. pistons

5. axles

6. alignment

7. shocks

I hope this info helps you. do NOT buy parts before checking of all parts listed above.