tr Mercedes W140 Wiper control relay Up for sale is a Working, in excellent condition used windshield wiper control. wiper control relay. Fits most W140 S class cars. Fits 600SEC 500SEC end of model year 1995. '95. 300SD S350 600SEL 500SEL 400SEL 400SE S320 300SE. 600 SEC 500 300 SD TURBO DIESEL S 350 SEL 400 SE 320. part# 1405420019. 140 542 00 19. Price this at a dealer You will be shocked at the price. This comes with a 30 day warranty. These units are very hard to find in good used condition.