SLK/R170: Help! Fixed Radio but this time tow light is lit and remote lock makes alarm go on
The PSE sits on right side of trunk. Remove the jack and you will see it. It is contained foam box. It has vacuum lines and electrical connections. You try to clean it electrical connections and/or dry the foam box. Replacement cost $250 to $300.00. Perform the replacement yourself--about 15 to 30 minute job.



