It does seem to be a common occurance to see angy benz customers in the service dept. My MB dealership service has improved over the past 2 years. However, I observed the following when I took my car in about 1 week ago:

Made appointment by phone but when I arrived 3 days later they had no record of my appointment. Still took the car for service.

Overheard customer complaining that his MB was leaking oil since the last time the oil leak was supposed to have been fixed by the dealer.

Loaner cars. This dealership uses a 3rd party for most of its service loaners. A customer was waiting for 20-25 minutes and still didn't have his loaner. This was at about 9am. A rep from the rental car company adised him it would be another 1 hour before a car is available, but a truck would be ready now. He went ballistic. He didn't want a truck. I took a truck and left promptly.

The previous time I was in for service all 3 people in the waiting area were complaining together about all the service issues with their 2000-current MBs.

On a positive note, friend of mine has a 2004 E320 and has no problems whatsoever. Also, other than the appointment itself, I had no issue with my car's warranty B service. My car was serviced promtly and ready as promised. Checkout could have been quicker.

__________________
Dave

1998 E320
2001 SLK320
2000 Lexus RX300