I have a 2003 C240 with 45,000 miles. Recently when I accelerate going uphill the car seems to "buck" and shudder slightly. Never happens on level surface. I suspect perhaps trans. fluid is a bit low. M/B dealer in Maui wants $730 to change fluid and filter! I was thinking of getting special dipstick to measure fluid--somewhat concerned about removing plastic lock on filler tube.
Any suggestions?