In a study by the automobile industry research center (FAW) in Bamberg, authorized dealers were questioned about manufacturers and importers' paying habits.
On a scale of 1 (very dissatisfied) to 5 (very satisfied) VW came in last with only 2.3 points (2.5 in 2003).
The brands Audi (2.6), Ford (2.9) and Opel (3.0) also were below average (3.2). Audi's ranking dropped by 0.6 points.
Wolfgang Meinig, head of the FAW, said payment delays tend to be the result of ineffective administration.
According to the poll, Honda and Hyundai dealers were said to be most satisfied (both 4.0). Mercedes-Benz was the best German brand and came in fifth place with 3.5 points.