Strange clicking noise under hard acceleration

[Clockwork]

Guys. what makes you think its a chain and not a drive shaft issue when you hear the "ratcheting" clicking sounds from under vehicle when you switch from Park to Drive or Drive to Reverse or any combo of that nature?

[srmmmm]

Originally Posted by Clockwork

Guys. what makes you think its a chain and not a drive shaft issue when you hear the "ratcheting" clicking sounds from under vehicle when you switch from Park to Drive or Drive to Reverse or any combo of that nature?

There is no warning on the drive shaft. Splines don't slip, they simply fail.

2002 X5 3.0 291,000 miles
2014 428i 12,800 miles
2004 325i sold at 123,600 miles (currently on eBay)
2001 325i sold at 66,000 miles