Thor Forums

[Roaming John]

I have a 2019 Mercedes 3500 Sprinter chassis under a THOR 24RW Delano. Mercedes purposely deleted their very fine factory installed TPMS from all theses chassis as they sell most of them to fleets, not RV builders. They claim fleet managers would not pay for them and our good old US government does not require them as they are not classified as “passenger” vehicles. The valve stems will not support any TPMS monitors as they are too weak. You may be able to get a fleet tire shop to replace all 6 valve stems and install a TPMS, but it will be very expensive and hard to locate a shop capable and willing to do the work. They also do not want the liability issues. I am very disappointed in Mercedes and have raised numerous complaints to no avail. On another matter, for vehicles other than Mercedes beware of TPMS monitors that have to be removed to adjust the tire pressure. It is a real pain, especially if they have locking, theft prevention features. It make a simple task very time consuming, especially in bad weather.