I am perplexed in trying to trouble shoot the clutch on my 2008 MKV Rabbit. The pedal recently lost a lot of its resistance. It now it engages pretty far out. Initially, I thought it may be the master cylinder. I checked both the master cylinder and slave cylinder and No leaking. The brake fluid reservoir is full. No slipping of the clutch. Car has 69,000 miles on it. Any thoughts?