Rough idle and low compression
 

03 1.8T Quattro Auto 87k

Rough idle and low compression, drives fine.

I put new plugs, coil packs, cleaned the TB, MAF and tested the fuel injectors to see if that would fix my rough idle, it didn't. After doing that I got a compression test done.

Cyl1 Comp 150
Cyl2 Comp 150
Cyl3 Comp 115
Cyl4 Comp 120

Codes are:
P0300
P0301
P0302
P0303
P0304

What's wrong and is there any way to fix this?