So, after around a year and a half of owning my A3 (details in sig), my coolant light has just come up flashing on the DIS.
Never had to top it up on previous cars but after some research, it seems that I can't be topping it up with a different coolant and mixing them. What coolant do I actually need to top it up? I've read it needs to be pink and G12 or G12++? Is there a Halfrauds alternative instead of going to the stealers?
Also, I've just checked and the coolant that is currently in there is a dark colour rather than pink. Should I be concerned about this?