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Intake Manifold Tuning Control Solenoid Valve Location?
Hi all, First time poster on this forum.
I own a 2009 Q5 with a 3.2L engine - somewhat uncommon in the Q5.As a result of limited years in production, there are not so many owners with the 3.2L. So I thought I may get a better response on this forum since A6 used the same engine.
A few weeks ago I noticed reduced acceleration and MPG.
After a scan, the code P2070: Intake Manifold Tuning (IMT) Valve Stuck Open Bank 1 was present. Cleared it and it reappeared.I've inspected vacuum lines for leaks and the IMT flap. All seems good.
Based on a few posts across the boards, it appears a defective vacuum control valve (037906283C) is a common issue for this code.I ordered the part but had a question regarding it's placement.
Question: Where's the location of this specific valve that controls the IMT? At the front or rear of the engine?
Based on the drawing below it appears there's 2 or 3 of these control valves across the engine bay. (#32 front, #32 rear, #37 front?)
When the same DTC came up on my 2006 A6 Avant, the cause was a defective vacuum chamber on one of the lower intake manifolds. To correct, I had to purchase a complete lower intake assembly. From your pic, I believe #32 and #37 are the electrical valve that supplies the vacuum to the chamber that activates that IMT.
Thanks for the input. The front control valve (037906283C) does actuate the intake manifold tuning actuator as removing the electrical connector created a new code P0660 - Intake Manifold Tuning Control Circuit.
After replacing the front control valve (Pierburg - 037906283C), the code P2070 was eliminated. Glad it was a relatively cheap repair this time.
Front control valve solenoid (037906283C) Front control valve solenoid (037906283C) Pierburg - 7.22880.01.1 Valve Solenoid (037906283C)
Thanks, I was getting the P2070 code and tested the solenoid with a low voltage source to hear no characteristic click. To replace I loosened all 12 IM screws and removed the vacuum lines plus connector. I then raised the IM an inch or so in front. It took me a bit to pinch the tabs correctly but the old solenoid came out and the new one went in easily. Now I have to stop making excuses and get to the inner CV boot.
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Intake Manifold Tuning Control Solenoid Valve Location?
