I doubt many people would know if their front diff had gone unless a warning light is triggered. On my E70 the diffs are ‘sealed for life’ so most people would never do anything with them - I’ve had to ask three times at my local garage for them to change the oil as the first two guys clearly thought they knew better than me and ignored my instruction to change it.Sundayjumper wrote: Sat Dec 03, 2022 2:40 pm Is that a common failure on X5s ? Diffs are generally pretty tough. Unless they've lost their oil somehow.
Traction is so poor with fat road-spec tyres on slippery surfaces that I questioned whether my front diff worked when I first bought it.