From chassis number 04.10 474, on 6 May 1969, the new Type 353-1 engine with was introduced. In 1970 ( exactly in 18-th June 1969- according to Mr. Horst Ihling's publication "Wartburg - Help Yourself" ) round instruments replaced the earlier "bathroom scale" type, and in 1972 bucket seats replaced the earlier types. Also in 1972, an optional floor shifter was introduced, but it did not function very well and saw limited sales. and Since 3 March 3, 1975 (from chassis number 10.06 948) the vehicle became the Wartburg 353 W. First shown in 1974, the 353 W received front disc brakes (of Czech manufacture) and many other safety changes such as rollbelts, a collapsible steering column, and dual circuit hydraulic brakes. The body remained unchanged.