Hi all, this is my first time posting, be gentle with me please !!!! I have a 2006 XJ6, 2.7 Diesel which i've owned for 9 mths without a problem but yesterday while on the M1 i experienced a 'muffled pop' and a sudden loss of power while cruising at about 75mph, shortly after the dash displayed 'restricted performance' and 'gearbox fault' !!!! The car went into 'limp mode' and i luckily managed to make it home !!! Before i set off to the garage tomorrow i was hoping someone might be give me some info/advice ????? thanks for taking the time to read my post, Jason.