In simpler terms, it adjusts the camshaft for the intake and exhaust valves, allowing for smoother idling, more torque, and a more elastic powerband. In addition to this, the vanos solenoids control the flow of oil to the cam gears, which is what allows the timing to adjust.
Table of Contents
Where is the VANOS solenoid on BMW?

What is VANOS Inlet?
VANOS is BMW’s version of variable valve timing (VVT) that was first introduced in 1992. This system works by adjusting the timing of the intake cam in order to maximize efficiency, power, and torque depending on engine speed, load, and temperature.
What is a VANOS code on BMW?
Single VANOS only produces one fault code which is: P1519 (BMW 212 0xD4). This fault code signifies that the VANOS system is sticking and becoming jammed. Failure of the single VANOS system will incur the following symptoms: poor driveability, lowered horsepower, rough idling, low fuel efficiency.
Does E90 have VANOS?
The BMW E90 engine utilizes two VANOS (variable camshaft timing) solenoids. One for the intake camshaft and one for the exhaust camshaft, mounted to the front of cylinder head. They are responsible for direct oil flow to the VANOS actuator and can become restricted over time on high mileage engines.
How do you know if VANOS is bad?
- Loss of horsepower and torque.
- Slow reaction to pressing the gas pedal.
- Slow cold starts.
- Limp mode or problems with the car computer after acceleration.
- Decreased driveability.
- Rattling noises or rough idling.
- Inconsistent idling.
What happens when VANOS fails?
If the VANOS system fails, your BMW will be unable to properly regulate its fuel usage. As such, it may start to burn through more fuel than normal. Simultaneously, your vehicle may also sputter and accelerate sluggishly, as its engine will struggle to push out the increased amounts of fuel through the exhaust cam.
What RPM does VANOS kick?
3500 RPM on E36 or very close to that number.
What can I use to clean my VANOS solenoid?

What RPM does VANOS engage?
From idle to redline. 0-8K rpm.
What is a BMW VANOS problems?
Common Symptoms of a Faulty VANOS System An engine that hesitates and bogs at lower RPM. Rough idling/ increase in engine misfires. Increase in fuel consumption. Reduced fuel economy. Issues with cold starts.
How do you test a VANOS solenoid on a BMW?

How do you replace VANOS?
- Step 1: Remove Engine Cowl and Filter Panel.
- Step 2: Remove Engine Cover.
- Step 3: Remove the Intake Snorkel.
- Step 4: Find the Solenoids.
- Step 5: Removing the Connector Wires.
- Step 6: Remove the Vanos Solenoids.
How long does a VVT solenoid last?
Just like other sensors and switches on your car, the VVT switch is designed to be a lifetime part. The heat of the engine is what usually causes repair issues with this part of the car.
Does my BMW have VANOS?
Any BMW car from 1993 or later is likely to have the BMW VANOS engine with a valve timing system. Valve timing defines the performance, power and efficiency of an engine. To drive your BMW and keep it in an ideal condition, you must find out VANOS engine working, types and ways to recognise failure signs.
Is it OK to drive with bad VANOS solenoid?
Your good to drive it just don’t romp on it. Depending on the code it will tell you which one. You can clean it and reinstall and should not throw anymore codes. But might as well replace it price is negligible.
How much do VANOS cost?
On average, it costs about $600 to replace a Vanos solenoid. The costs are split between $200 for parts and $400 for labor. The typical range is between $300 to $800. Different BMW engines use different Vanos systems, which may cost more than others.
What does bad VANOS sound like?
A typical VANOS rattle usually sounds like a bunch of marbles rattling around in a plastic bucket. A noisy VANOS may drive you up the wall while driving, but it won’t result in poor performance or engine damage, in most cases.
What causes VANOS solenoid to fail?
The first issue is o-ring failure. These rings are made from rubber and can break down and deteriorate naturally over time. The second most common issue is with the solenoids, which can get clogged. If dirt and debris block the solenoids, they will not be able to work properly.
What causes VANOS rattle?
The vanos rattle is caused by wear in the variable valve timing helical (slanted) gears. These gears are found on the camshaft, camshaft sprocket, and splined shaft which attaches to the vanos. The helical gear wear allows the camshaft to have lash movements that engage the splined shaft axially.
What is a VANOS in a BMW engine?
VANOS is a variable valve timing system used by BMW on various automotive petrol engines since 1992. The name is an abbreviation of the German words for variable camshaft timing (German: variable Nockenwellensteuerung).
How many VANOS solenoids are in N63?
The variable valve timing (VANOS) on the N55/S55 6-cylinder and N63/S63 V8 is driven by this solenoid. There’s a solenoid for each camshaft (2 for 6-cylinders, 4 for V8) and if they fail, the VANOS will cease to function or be slow to respond to commands from the ECU.
Can you clean VANOS solenoid with brake cleaner?
While brake cleaner may work, to me personally I feel it’s to abrasive. I would use either CRC maf or carb cleaner. I’ve seen them cleaned with just about any cleaner, the best I’ve seen was cleaned with a parts cleaner table and chems.
Can you clean BMW VANOS solenoid?
Yeah, people have had some good success with cleaning the solenoids, but rarely has it been a permanent fix.
Is VANOS the same as VVT?
Vanos (or variable Nockenwellensteuerung) is BMW’s take on VVT and was first introduced on the M50 engine within the 5-series of the 90s. It also uses cam phasing but with a helical gear within the cam gear which moves towards or in the opposite direction to the camshaft, altering the lobe angle.