Mine is going through the disco dance once I get to the 1/2 full mark, and I wondered if there was a solution other than replacement...I'll check my manual to see if I can get to mine through the trunk as well.
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car