How can I fix this problem with my car?

Hello, I wonder could you help me with this problem. I have an 04 alhambra 19TDI 130 brake, my indicators aren't working but my hazard lights are, my heated seats aren't working,ABS light is staying on along with the red handbrake flasher, speedo not working, fuel gage when I accelerate works, but when I take my foot off the accelerator to change gear it says I need to re-fuel. My heater metrics aren't working and it keeps blowing fuse s3. I've out it on the computer and it won't show the codes in the diagnostics, I would be pleased if you could help