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  • How to Avoid a Vacuum Hose Leak in Your BMW in Atlanta

    Posted on October 1, 2021 by europeanseradmin
    BMW Engine Starting Issue

    BMWs are highly-engineered vehicles and popular for their high-performance on the road. The vacuum hoses are an important system in your BMW for your comfort and its performance. If a vacuum hose malfunctions, it wreaks a lot of havoc on other parts (especially the engine) of your BMW. To understand the leakage, you need to understand the role of a vacuum hose in your BMW.

    The Role of the Vacuum Hose in a BMW

    A vacuum hose is also known as a vacuum line or tube. As the name implies, vacuum hoses are small flexible plastic tubes connected to various components of your BMW engine with the sole purpose of creating a vacuum to power each of the connected components. Some parts of your BMW that require a vacuum hose are the vacuum advance, brake booster, EGR valve, HVAC controls, heater control valve, and PCV valve.

    The intake manifold creates the vacuum in components of your vehicle that requires it. All the vacuum hoses share a connection with the intake manifold on one end. If a vacuum hose leaks, it allows additional air in the engine, causing an imbalance in the air to fuel ratio. This leak will automatically cause engine problems or total shutdown of the vehicle.

    Signs of a Leaking Vacuum Hose

    You must pay attention to your vehicle. If you can detect the problem by recognizing the early signs, you can prevent it from worsening. Discussed below are signs to look out for in case of a faulty vacuum hose.

    • Check-engine light: A leaking vacuum hose can trigger your check-engine light. Although other underlying problems can start it, a leaking hose is one of the leading triggers. Hence, always contact the help of a mechanic whenever it illuminates.
    • Hissing sound: The sound is not clicking or clucking, it is just hissing. If you hear a hissing sound coming from the engine of your BMW, then there’s a problem with the vacuum hose.
    • Trouble starting the engine: An imbalance in the air-to-fuel ratio resulting from a leaking vacuum hose will result in difficulty in starting the car. In worst cases, the vehicle may not start up at all or may stall while in motion. In cases of the former, restart the car immediately, if possible, and then pull off to a safe place to stop. Seek the help of mechanics immediately for your safety, which will most likely require a tow.
    • Rough idle: BMW engines idle faster when it receives more air than it should typically receive. Your vehicle’s computer will intervene for the amount of air it is receiving, and this will lead to fluctuating idle speeds.

    Causes of a Vacuum Hose Leak

    The most common cause of a vacuum hose leak is the disconnection of the hose from the intake manifold or any other connected component. The heat generated in the engine of your BMW can also cause wear and tear of the hose, since it is made from plastic. Hence, practice safe driving. Driving at high speed will generate more heat than the engine normally would and damage the vacuum hose. Also, damage in the brake booster, seals, and gaskets can cause vacuum hose leaks.

    Fixing the Leakage

    Technicians will always advise car owners that maintenance is the best way to preserve the performance of their cars. If you can carry out routine maintenance on your BMW, you can prevent and reduce the chances of a vacuum leak.

    However, in cases where the damage has already been done, you will need to seek the help of professionals. If you hire the right professionals, you’ll save yourself both cost and time.

    BMW Vacuum Hose Check

    European Service Center for Quality Service and Repairs

    No matter how insignificant the vacuum hoses of a vehicle seem, they’re very delicate and require the help of a professional mechanic to fix them. European Service Center offers superior European car service that you can rely on every time you need auto care.

    At the European Service Center, all our technicians are ASE-certified experts and utilize high-quality diagnostics equipment in the repair of your vehicle. We believe that everyone deserves exceptional auto service, which is why we offer our services in multiple locations throughout the Dallas, TX and Atlanta, GA area, including Alpharetta, Chamblee, Norcross, Dunwoody, Buckhead, and Roswell, GA.