Spannie
New member
Time to sell the car!
But seriously, putting in a helicoil is fine for say a flange, or some-or-other mounting etc, but for a sparkplug - norrachance! Have them replace the head and ask for the old one. They'll probably tell you it has to go to Germany to get tested for material failure etc etc, but I wouldn't budge, they can send the head back to you after ze Germans have had a look (I doubt it ever happens though).
But seriously, putting in a helicoil is fine for say a flange, or some-or-other mounting etc, but for a sparkplug - norrachance! Have them replace the head and ask for the old one. They'll probably tell you it has to go to Germany to get tested for material failure etc etc, but I wouldn't budge, they can send the head back to you after ze Germans have had a look (I doubt it ever happens though).