Hi there, I have a seat Ibiza fr 57 plate tdi engine 130 bhp. There is a slight leak of oil around the metal rod which leads to the top of the sump where the dipstick tube sits, I orded the metal rod from seat and took it to a garage to be fitted however they did not know how to remove the old rod as trying to pull it out from the top with moldgrips didn't work, have you Any ideas, many thanks Lewis.