the tc light and the engine like as well but the tc light came on first then the engine light came on. unhooked the batary and then put it back on then no light but when i turned the engine back on the light came back!! i'll have to see if i can find any1 with vag come or take one of them offf and see it if the light r still on.
its never straight 4ward
Ive fitted two BMC CDAs to leons and never had a problem.
I may get scorched for saying this but i think the Green Twister looks Chavish thats why i was put off it.