Skip the auto shop - Our mechanics make house calls

Q: Vanos gear malfunction

asked by on

Good day

I need information on what could possibly cause a venos gear (exhaust intake one) not to go back to lock position. The gear is brand new (at first I thought it was faulty then went to auto bavaria for replacement but it does the same thing).

The problem is, when the venos does not go back to the lock position, it creates miscommunication to the cam and it loses timing then power on vehicle is lost.

Anyone with information please assist BMW X3 2.5si

My car has 150000 miles.
My car has an automatic transmission.

Hello. The symptoms you describe are commonly associated with a faulty Vanos solenoid or actuator. If the Vanos mechanism is not returning back to it’s proper position it may be possible that it is receiving the signal to due do, perhaps due to a faulty Vanos solenoid or valve. The same could also occur if the camshaft actuator mechanism, the mechanism that adjusts the position of the camshaft and timing of the engine, gets stuck, or encounters a fault. If the actuator mechanism component has recently been replaced then the next things I would look at are the Vanos solenoids. As these sorts of issues can sometimes be difficult to diagnose, if you are unsure, I would recommend having a professional technician, such as one from YourMechanic, visit your location to determine if the Vanos solenoid needs to be replaced.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Car Wont go into gear

Hello. I'm sure this is been done but ensure that the clutch release bearing and a whole clutch kit was installed when you replaced the clutch. A complete couch job consists of a pressure plate, a flywheel, a clutch disc...

Q: My Chevr HHR (2006) has milky oil, and white smoke puffs out of the dipstick tube. The car doesn't overheat,and the heater works.

Check for any change in coolant level in the overflow reservoir. If no change over, say, 500 miles, you simply have a high level of condensation because there is absolutely no other source of water to the engine. You can...

Q: What is it when you add antifreeze to your car every few days and your car never run hot

If you have to add more than a cup of coolant in a 6 month time frame from normal evaporation then you have a leak. The coolant leak can be identified as an external or an internal leak. If you...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...