Silly me, hope that didn't damage my transmission, today I checked the ATF level when engine running, I couldn't see any oil mark on my dip stick, my ATF must be very low.

I poured in about 6.5 Litres ATF, the manual says I should expect 7.7 litres for a 400E, it must miss that 1.2 L.

Thanks a lot.

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99 BMW 540i 6-speed 110K Km
03 SAAB 9-5 wagon 80K Km
92 400E (Sold) 245K km
Still missing the days with the Benz, it kept me busy.