I'm a little confused about the information I've read regarding the ESP and engine management light? I think the engine light might be on because of the exhaust but I'm not sure! The ESP so I read is something to do with abs/traction control! Now there is no abs light on however the traction control button doesn't work! So do you think this could be a electrical fault or sensor? Will it still pass a MOT with the ESP light showing? If not it is an expensive repair?..