POWER LOSS ON START UP
 

I HAVE AN 06 X5 3.0 DIESEL.WITH AN INTERMITTENT FAULT.IT ALWAYS STARTS AS NORMAL,BUT SOME-TIMES IT IS RUNNING IN LIMP MODE FOR THE FIRST 2 OR 3 MILES,THEN IT IS OK.ALSO I TRIED STOPPING IT AND RESTARTED,AGAIN THAT SEEMED TO DO THE TRICK.WHAT,S GOING ON!! ANY-ONE GOT ANY IDEAS?

Do you have the same symptoms as in this thread? You might want try the same fix?

http://www.xoutpost.com/bmw-sav-foru...lp-please.html

Thanks,was thinking along the lines of the MAF playing up.Will try disconnecting it and see if it makes any difference.Regards.

Hi

did you resolve your power loss issue

Mine has done it a couple of times aswell (2006 3.0d sport)

regards

Hi there,my car has been in for diagnostic scan,and they think it is the EGR valve.Going in on monday for further investigation.Will keep you posted.

have you tried to bypass the egr valve by blocking the vacum pipe

I have a feeling it's the maf sensor that needs cleaning but wa hoping for more replys

regards

Hi there,I checked out the EGR valve which seemed fine.Removed Maf unit and gave it a good clean with electrical spray cleaner.I also noticed that the engine oil was on the high side,which I adjusted.After which, the car is running like a swiss watch!!> Fingers crossed I hope it is cured.Hope this is helpful to you.BIGDIPPER.

Hi Bigdipper

Did you remove the maf sensor to clean it?

Was it straight forward?

regards

Yes I removed it.Its a pig of a job.You will need both male and female Torx tools plus a lot of patience.I used electrical spray cleaner from Halfords £3.99.Give it a proper soaking from every angle through the mesh from both sides,then let it dry.DO NOT TOUCH THE ELEMENT with anything or you will knacker it.Hope this helps.Good luck.Regards bigdipper.