My 1994 old BMW 525TD automatic has developed an intermittent fault. Occasionally, from rest, when it is put into drive the engine stalls (if it was a petrol engine I would have pulled the choke out to rectify).

This happens sometimes when the engine is cold and sometimes warm, it doesn’t seem to matter. Also, on one occasion, when running up to a roundabout, foot off the accelerator, the engine stopped but started again immediately on the started motor.