Hard to say. Try the BMW group... :-)
(Merc main car factories are in Stuttgart and Bremen, neither in Bavaria.)
And now we wait for a more knowledgeable person to give you a proper answer.
(Did you ask a technician in a dealership? Or, Merc's in-house museum would
Fairly OT: today I saw two Opels in Hyde Park. One was from 1899 (no
steering wheel) and the other much more modern, namely from 1902, IIRC
(proper steering wheel, engine in front, rear-wheel drive). I was impressed
to hear that they could reach approx 40 km/h.
They had just come from Opel's HQ near Frankfurt in preparation for Sunday 7
Nov's London - Brighton run, a 60-mile run for 'older' cars.
I mention it here because these cars are supposed to run on 100-octane
(European) petrol but can actually cope with a lower octane. Apparently this
grade is now available at some German petrol stations.
For direct contact replace nospam with schmetterling