Quote:
Originally Posted by TwinTurboGTR
UHG you're right, I'm having another brain fart, its not an EGR system... I'm trying to find it on the diagrams what I am talking about. Ill get back to you.
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I think TwinTurboGTR is referring to the Secondary Air System. See attachment. Stuck open Non-return valves could allow exhaust gas to get sent to your secondary air pump, but I wouldn't expect this to cause rough idle problems.
I would spend the $35 and review all the SIBs for Group 11 (Engine) and Group 12 (Engine Electrical) on bmwtechinfo.com
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2010 X5 3.5d: SOLD, but miss the torque...
2004 X5 4.4i: SOLD, but served us well
Last edited by ripp222; 12-19-2011 at 12:32 AM.
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