Abstract:
The objective of this study was to increase customer satisfaction in after-sale service of a
sampled car sale representative. According to monthly survey results from September, 2009 to
February, 2010, one item was not met the standard of 9.0 points set. After analyzing this problem,
it was found that late delivery was the main cause of less satisfaction. Also, the main causes of the
late delivery were (1) lack of time data in work instruction and (2) lack of communication tools
used to control the working in the work shop. To solve the problem, continuous improvement or
Kaizen was implemented by (1) setting up time data in work instruction and (2) installing control
boards in the work shop and at the car wash section. After improving as mentioned above, this
work shop could return the cars to the customers before the appointed time significantly (p<0.05).
Actually, the average delivery time was 5.8 minutes before the appointment. Due to the customer
satisfaction survey in May, 2010, all survey items were not less than 9.0 points. It could be
concluded that this improvement could result in more satisfaction for the customers.