Synopsis
Bob and the team are building an automatic car wash for Curtis' garage. In an effort to ensure that the tarmac is completely flat, Roley keeps checking and rechecking to a fault. During the second test run of the car wash, Roley thinks he sees loose tarmac and rushes to fix it. Chaos ensues, and Bob and the team enact a quick repair. The car wash is finished just as Philip, Mayor Madison and Mr. Bentley arrive to use the new system. Windows open, Phillip hurries through, washing not only the outside of the car but Mayor Madison and Mr. Bentley too.