So....my magura...it was filled,ish, with what looked like a mixture of oil and water, proper gunk, so I syringed it through in both directions, a good litre each way, until it looked as clear going in as it did coming out, I then had to take the lever apart as the tps (tpa?) Was seized, sorted that and lubed it, took the piston out while I had it apart and gave it a clean along with thw spring, reassembled and then bled it as the instructions on here, now I have 2 problems, I had to wind the adjuster out to get the right kind of bite on the lever which I understand is wrong because you are putting to much pressure on the winder also the lever now takes ages, even needs help, to return, like its sticking, possibly in the absence of the goopy mess that was lubricating it, so, I have a really good brake but its not set correctly and doesnt return properly....help! I just wanna ride
Oh and thanks to everyone so far for your help, I appreciate noobs just tend to ask stupid questions but I have done plenty of searching and googling and cant seem to find a definitive answer