There are more mistakes with the kit, though.
If you study Panzer Tracts 15-1, you'll notice that there are two different sub-versions of version A: one is the standard Panzeraufbau 250E and the other is the Panzeraufbau 250/Z made by Böhler-Werke in Austria. (There's a 3rd sub-version, but this was the 0-Serie prototype.)
The easiest way to tell these apart are the headlights: the former has them in front of the fenders, the latter has them on top of the fenders, mounted on the engine housing.
Other differences are a) the shape of the rear armor plates (only applies to Sd.Kfz. 250 and 253) and b) the angle of the driver's front armor.
Now looking at the 252, you know immediately that it's based on the 250/Z when you look at the headlights. So I looked at the angle of the driver's armored plate and noticed it's angled at 30 degrees (250E), not 21 degrees as it should be for the 250/Z. Also, the vision ports don't have the 2 slits of the 250/Z.
Another glaring mistake is the joint between engine housing and crew compartment: it's raised, whereas all other 250/253 Dragon kits had it correctly recessed.
The last glaring mistake is the shape of the stowage box on the right side, between the front fender and the track guards. This has the shape of the 250E, where the toolbox was integrated. The 250/Z, however, hat a smaller stowage box that is flush with the fenders. The toolbox was separate on the track guard behind it.
The puzzling thing to is that Dragon knew all these differences between 250E and 250/Z, because the kits that came before this one were all correct!
Apart from the drive sprocket issue, of course.