BMWs are known for their high standards of excellence and quality, but being designed with such unique precision means that your BMW is prone to unique issues. To properly care for your BMW, it’s important to understand its potential problems and what you can do to fix them. It’s especially important when having trouble with your BMW’s VANOS system.
What is VANOS?
VANOS is a variable lift and timing system. It is unique to BMWs and integral to your car’s function because it controls the way your camshaft moves. It does this by changing the position of the intake camshaft, which allows your car to maximize its power and use less gas in so doing.
Compared to some of the BMW’s flashier features, you may not give much thought to the VANOS, but it’s actually one of the main features that makes your BMW the awesome ride it is. Without the VANOS, you would have a much less impressive MPG rating, and your ride wouldn’t be nearly as smooth. The VANOS system helps maintain power in the engine with minimal gas usage.
What Causes VANOS Failure?
Because BMWs are so finely tuned, little things can aggravate their electronic systems, leading to system failure. And because the VANOS system is one of the BMW’s most finely tuned features, it’s especially prone to failure. Minor failures like engine leaks, system malfunctions, and the stress caused by everyday wear-and-tear can cause VANOS to fail.
Symptoms of Problems in Your VANOS System
So, how can you tell if your VANOS is failing? One of the first signs you may notice is a decrease in overall vehicle performance and driveability. The engine may be louder while idling and your ride might feel bumpier than usual. The torque will also decrease, as the torque and VANOS are intricately connected.
How to Carry Out VANOS Repair
If you’re interested in fixing the problem yourself, you’re not alone. DIY car repair is a popular interest these days and a lot of people are interested in saving money and brushing up on their skills by repairing their cars at home. So, if you want to try fixing your VANOS system, here are some things you need to know:
- Turn your car off first and give it a lot of time to cool down. You want your vehicle’s engine to be completely cold when you start working, because the engine being too hot can both cause problems with installation and be unsafe for you. So, avoid potentially severe burn injuries and make sure the car is cold.
- Next, you’ll want to remove the engine covers as well as the cooling fan to give you access to the VANOS system.
- Once that step is completed, remove the vent hose as well. It’s important to remember- especially with this step- that handling each of the parts gently is critical. Failing to handle any of the parts with care can cause the hose to break in half.
- Next, remove the coil harness and then remove the coils. This step will expose the valve’s cover.
- Now that you can access it, you’ll want to remove the valve cover. Removing it will let you get to the electrical connectors (which control the VANOS), the oil hose, and the engine lift bracket. Now you have access to the VANOS system’s parts.
- Remove the VANOS system along with all of its associated cover and seals.
- Replace all of the seals with new seals, then replace or refit the old VANOS system in place.
Group One Motorwerks
If you’re in the Tucson area and want your BMW to benefit from the care and attention of trained professionals, Group One Motorwerks is here to be of assistance. Founded as a family business in 2005, Group One Motorwerks has continued to maintain its legacy as a cutting-edge repair shop that specializes in top-notch customer service. With an exclusive focus on European vehicles and a dedication to honesty, integrity, and customer satisfaction, no matter what’s wrong with your BMW, Group One Motorwerks can help. Call or stop by today so we can help you get your BMW back on the road as soon as possible with the smooth, comfortable drive you expect from a vehicle of that caliber.
* BMW F26 X4 image credit goes to: DarthArt.