Thank you A264172 for your very quick reply,

the info you mention don't they relate to the TD signal and not TF?

but it is my fault I believe I have mislead everybody by the typing error I made, I should have typed TF in stead of FT

Is it possible that a faulty "TF" signal induces stalling of the engine?

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Keep us posted especially if your problem is solved
Present cars:
My car: E-class 420CDI, 2008, W211, V8, 180 000km

Wife's one: C-class 220CDI Sport Coupé, Euro, 2002, W203. 345 000km

Son's one: GLK class, 220CDI, 2009, W204

Sold: E-class 260E, 1988, W124, Wonderfull car sold after 489 000 kilometres of reliable services (engine M103, clutch, brake system and 5 speed manual gear box all original).

Sold: E-class, 320CDI, W210, 2000, 225 000km