Ok, what I found:
Regarding UNECE and the German StVO
1. The parking light function can be provided by the "Begrenzungsleuchte" by the sider-marker-light or the contour light. That is almost always the case with M1 and N1 cars.
2. Regarding the German STVO §17 (4) you have to illuminate cars which are stationary outside of build-up areas. You can illuminate a stationary car within a build-up area and then it is enough to switch on only the side which faces the road (normally that is done by using the turning indicator while the ignition is off).
Regarding regulation VO 2015/208 Appendix XII 6.11.7 which regulates the switching of the parking light you must be able to turn on the parking light (if it exists) independently from other lights. That is the case. So this regulation is met.
But then I found within UNECE R48 (which defines what lights a car needs, how much, where and how it must be switched):
UNECE R48 6.12.7
Überschrift
Elektrische Schaltung | |
| Die Schaltung muss so ausgeführt sein, dass die Parkleuchte auf derselben Fahrzeugseite unabhängig von anderen Leuchten eingeschaltet werden kann/können. |
| Die Parkleuchte und, falls vorhanden, die Begrenzungsleuchten und die Schlussleuchten nach 6.12.9 müssen auch dann eingeschaltet werden können, wenn die Einrichtung, mit der das Antriebssystem gestartet wird, sich in einer Stellung befindet, in der der Betrieb des Antriebssystems nicht möglich ist. Eine Einrichtung, die diese Leuchten als Funktion der Zeit automatisch ausschaltet, ist nicht zulässig. |
Translated: the parking light must work with ignition off. This regulation must not be valid in a single country, but within the EU most countries follow the R48 and sometimes national regulations overwrite this, like in Sweden where you can use three high beam lights and you do not have to use them in pairs. However, Germany follows UNECE R48.
Actually I try to figure out, how the homologation has been successfull while this requirement is not met.
AWo