New to BMW ownership. Purchased a used 2012 X5 35d in June 2018 with 74000 miles on it. The vehicle now has about 80000 miles on it. Got a CEL with two codes using my Innova 3030. Was able to shut car off and restart and get home without further problems. Ran good for another day or so and then got another CEL. This time it triggered about 7 codes. If same within tolerance, proceed. 4. Run engine at 1200 rpm to cool off exhaust system, about five minutes. 5. Turn on def injection, run engine at 1900 rpm until scr is saturated, 10 minutes or so. 6. Compare nox sensor mv, if within tolerance, about 1 to 4 downstream to upstream, passes test. This client came in for a check engine light in their BMW X5. Upon diagnostic scan testing, it was revealed there was a problem with the EGR valve. So basically what’s referred to as an EGR insufficient flow. Initial diagnosis in checking, testing of the vehicle in front of us revealed a sticking EGR valve and also the EGR cooler was heavily In this video I'll show you faulty EGR Valve symptoms.-Weird duck *quacking* noise-Hard idling-RPM Goes crazy-Engine finally shuts down.I temporary fixed thi 2009 X5 35d June production. FWIW BMW X5 35d Selective Catalytic Reaction (SCR) System uses two tanks to hold the AdBlue/Urea. The Active Tank heats the Urea (1.6gal) when required and is located in the front right section of the engine compartmant while the Passive Tank (4.5gal) is under the floor next to the Xmission with the fill nossle Of the 4-1/2" sprink cut about 20 coils and bend the last coiled at the cut. Drill a small hole (1/8') in the plastic fan housing then attached the 2 end of the spring as in the pictures attached. I also added a piece of hose over the vacuum hose to avoid direct rubbing against the spring. A bad PCV valve or related component can produce a number of symptoms. For example, if the valve clogs, or gets stuck in the closed position, you'll notice one of these symptoms. Increase in internal engine pressure. Failure of one or more oil seals or gaskets. Engine oil leaks. Effectively, it introduces everything you don't want in your engine: 1. increases intake temps by diverting hot exhaust gases (sometimes up to 1400 degrees) into the EGR then the intake - so much for a cold air intake system for a diesel. 2. decreases power by diverting hot exhaust exhaust gases into the intake. .

bmw x5 egr valve problems