Are the wipers on your classic Mercedes W140 (S420 or S500 from 1994-1999) acting up—maybe not parking right, running intermittently, or not working on some speeds? This wiper control relay module (part #1405420019) is likely the fix. It's a brand-new aftermarket replacement made from quality ABS plastic. This little electronic brain controls all the wiper functions. Installation is usually straightforward—located under the dashboard or in a relay box—but consulting a repair manual is a good idea. Comes with a 1-year warranty. A simple and affordable repair that can restore a crucial safety feature on your luxury sedan. Always verify your Mercedes model, year, and the old relay's part number before purchasing.
