Re: Towing with a VR6 B4 Wagon (dagmando)
VW may allow 1500kg or something on a B4 Passat in Europe, but that is with European spec tow hitches.
I have a European spec tow hitch, and it bolts to the "chassis rails" in four places, basically replacing the bumper irons. This is how VW intended it.
US hitches tend to bolt in one or more places to the trunk floor or spare wheel well, as cheap hitches used to in Europe. This configuration is not strong enough for a 1500kg trailer, and this type of hitch is now illegal to sell in Europe.
Also note that 1500kg (or there abouts) is the limit for a
braked trailer. The limit for unbraked trailers is much lower at something like 500kg.
Lastly I would never tow more than about 1000kg with my Passat, even with a European hitch and brakes, simply due to the risk of the trailer taking control and causing a snake. This happened to me once and wrote off my car (my previous Peugeot).
That said, you can tow a light trailer with a B4 and US hitch, or a heavier one with a proper Euro hitch and brakes.
Here is my trailer