Hi all. I'm doing Spark plugs for the first time on my Cupra 2.0tfsi. What mm hex do I need for the plugs? After searching the Audi and golf forums I keep seeing 16mm but people also say 10mm? Halfords do a 10mm wrench but can't seem to find 16mm anywhere.
Also is a torque wrench required/ recommended? I don't have one (kind of wanted one for ages) but is it a must or is a very careful hand/ wrench tightening ok? I know a crossed screw is game over so I'm going to be extremely careful.
Also is a torque wrench required/ recommended? I don't have one (kind of wanted one for ages) but is it a must or is a very careful hand/ wrench tightening ok? I know a crossed screw is game over so I'm going to be extremely careful.