About Robert Greenfield Expertise I can answer any question pertaining to B5 model Passats short of automatic transmission rebuilds. I may be able to field some questions about other late model VWs with crossover engines. I do not address performance modification questions.
Experience I have been doing all my own work on my two Passats for a decade. I have been giving sound repair advice on PassatWorld.com for the past few years.
Education/Credentials No relevant auto related degrees unless a BSME counts.
Expert: Robert Greenfield Date: 12/16/2007 Subject: Turn signal clicking sound in '03 Passat
Question Hi Robert,
I have a 2003 VW Passat 1.8T. Since past week it has started make random clicking sounds while driving even when I don't have the turn signal on. Some say it could be a multi-function switch problem or a faulty turn switch relay or a faulty hazard relay. My hazard lights and turn lights works fine when turned on.
What is the actual problem? Any thoughts?
Regards
Answer The turn signal relay and the hazard relay are one in the same. It's located in the hazard switch itself. Usually when it goes, the turn signals won't work right.
When you hear the click, do any of the lights come on too? Is it a steady string of clicks like the signals make, or just single clicks at random intervals? It may be that a different relay is malfunctioning. Is it related to anything else being on? Does it happen when you go over bumps? How frequently does it happen. If a lot, you could pull out the hazard switch and see if it's still there (avoid busy roads as you'll need to use hand signals!).