Version 2.04.07.13 (20190528)
The DME in the 737 consistently over indicates. The A 320 is OK.
Overhead KLO at Zurich, KLO DME1 is zero.
Overhead KLO at Zurich, ZUE DME2 should be 13.7. Indicated is about 15.7.
At BIRKI the IBE Berne ILS DME1 indicates about 9.3, it should be 8.3. The ADF bearing to Berne is the correct 138. (The extra slant distance from being at 5,200 feet is only 14 feet).
At BIRKI WIL DME2 indicates about 27.7, it should be 23.9. The IBE localiser is centred to confirm the correct distance from the VOR. The ADF bearing to Berne is the correct 138 degrees.
At indicated DME2 23.9. The fix BIRKI is distant and the ADF bearing to Berne is 160 and the localiser is off full scale.
This seems recent [WRONG] previously FS2 at Berne was fine, this time it was all over the place and I thought I was really losing it . The error might be from indicating statute miles instead of nautical miles. 27.7/23.9 is 1.159. 15.7/13.7 is 1.146. A nautical mile is about 1.15 statute miles.
It is the same in 2019 mobile.