Stalling M5 - The Unofficial BMW M5 Messageboard (m5board.com)

street1407 · 29th October 2008, 17:47

I have recently aquired another E39 M5, after a unhappy period in a 535d M Sport and that dim witted auto box!!.

Love being back in the beast but have come across the same problem I had with my last M5, after a long run and with the engine nicely warmed up the engine has a tendancy to stall when knocked out of gear i.e long run on the motorway take the slip road off to the roundabout go down through the gears knock it into netural and when you are rolling up to the roundabout it stalls..losing the assistance to the steering and brakes! This is becoming fairly common when it is warm and the revs do seem to dip low (below 500rpm) whenever you knock it out of gear and then rise again to around the 650rpm idle. Has anyone had the same problem and if so what was the cause of it? Greatly appreciate your comments.

g.p.racing · 22nd January 2009, 01:48

hi,
i realise im a bit late in adding a comment but ive recently had similar problem, returned to dealer they plugged in and decided the breather pipes had perished 9they had gone really soft )which was causing the cutting out-they replaced the pipes and seems to have solved problem.
hope this may help someone
G.P.

street1407 · 22nd January 2009, 11:27

thanks for that, I think that may be a solution. Have discussed potential air leaks etc although they have tried to avoid doing that. They have just replaced the temp sensor - to no avail and they are now considering the replacement of the oxygen sensors. I think I will as for the breather pipes first as this would lead to faulty readings on the oxygen sensors?