right as mentioned on the forum already ive had an issue with a light coming up on the dashboard which ive been told is either emmision control or engine management. once plugged into vag com it came up with error 17704 unknown error. after research im led to believe its a cooling issue and have been recommended to purchase a coolant temp sensor and a thermostat which i have done. however can someone give me some pointers as to how to install these and where they are? i cleared the codes using the vagcom and the light has reappeared today also its consuming a lot of fuel so need to get them installed a.s.a.p. there is also a clicking from around the washer bottle area which speeds up when the car is warm. please help