320i (E90)2006 TOURING bad idle, stalls on tickover

[bob walker]

My 320i E90 2006 (93000 miles) has developed a fault, after running around and up to temperature it occasionally stalls at roundabouts/junctions. I have stopped using Tesco fuel and gone to BP. Please advise. Thankyou in advance.

 

[Greydog]

Morning Bob

Sounds like something in the fuel/air delivery side isn't doing or can't do it's job. I would start on the easy/free stuff Air filter, all vacuum lines and inlet hoses for cracks or splits, is the MAF clean get some carb cleaner and give it a spray same with the throttle body. If they are all good and clean then fuel delivery side needs the same treatment, when was the fuel filter last changed? There is a fuel return valve in the engine bay if it sticks it could give low pressure and cause the problem even your fuel filler cap can have a blocked breather and cause these symptoms.

Have a look at www.realoem.com put the last 7 digits of your VIN in the search box it will bring up your model, then search fuel preparation. Also check out www.newtis.info the same information as used by BMW Dealers for service and how too's

Dave

[p38fln]

This is almost exactly what mine has been doing.  Did the switch to BP help any?

[p38fln]

Bob, check that the oil filter insert is actually in place.  This is a well known issue, there's actually an official TSB from BMW describing these exact symptoms:

https://static.nhtsa.gov/odi/tsbs/2012/SB-10032779-8218.pdf

If it's missing, replace the missing part, clean the VANOS solenoids with some starting fluid (Ether), and enjoy driving again 🙂