Hi,
got a 740 GLE 90 16valve.
When it gets hot, hot day -38-42 deg C the idling sometimes plays up - with or without the air con on.
Fluctuates between 1k - 500 revs and then stalls. Also sometimes hard to start when hot, will crank and start but not hold the revs by itself, have to rev it for a while and then it seems to click in.
Mechanic knocked the idle up to 1500 neutral and 1k in drive as a quick fix - still played up one day where it fluctuated from 1500 to 500, and it wasn't hot.
Since taken off the idle control motor and it operates fine - apart from cold start where it suffers for a minute or so.
Question is whether its worth putting in a new Idle Control Motor in and hope for the best? ie notthe ECU.
regards
Peter