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335i

You will need to have the cylinder number 6 compression tested to see if there is low compression in that cylinder? If it is low then have the cylinder pressure tested to see if the valves or piston rings are...

Most of the time you will want to go with the manufacturer's recommendation for oil change intervals (https://www.yourmechanic.com/article/when-should-i-change-my-oil). However, if the oil change interval is a very high number such as one with five digits, I certainly dont think it...

Hi there. The power windows in your car are computer controlled. They have safety features such as anti-trapping windows. It’s highly irregular that both or all four windows stopped going up at the same time. But when presented with weird...

Running regular fuel in an engine that takes premium fuel only may cause engine to get a pinging noise and may not run correctly until you get the correct fuel in it. Have a mechanic like one from YourMechanic check...

As you may know, the cost to rebuild a motor may vary widely due to the many options available and potential supply of parts or the damage done to your existing motor. Typically, you can find long blocks for this...

The term "oil gasket" is not helpful. It could refer to any number of gaskets in your engine. . "Oil pan gasket" however is a specific name that refers to the gasket on the oil "sump" or "pan" Gaskets are...

This is something that is likely related to what is called a neutral safety switch, which prevents the vehicle from being started while in gear. Your vehicle has a neutral safety switch (https://www.yourmechanic.com/services/neutral-safety-switch-replacement) that will prevent the vehicle from starting...

Hi There, It sounds like you may have a tensioner pulley (https://www.yourmechanic.com/services/drive-belt-tensioner-replacement) that may have a worn out bearing that may be putting additional stress on the belt as it turns. The other possibility may be that the tensioner pulley...

Ignition failures are more common on your car than fuel injector failures, and the mileage would be about right for coil failures. It takes several subsequent misfires for you to be able to notice it on the road, so if...

The best thing to do is get a coolant pressure test and hook it up to your radiator or reservoir and pressurize the system to 15 psi. If there is a leak, it will appear under a pressure. If you...

What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds...

One of the main things that can prevent a vehicle from starting in the cold is the battery. Batteries for automobiles are rated by cold cranking amps. This measurement is the amount of amperage the battery can produce at zero...

The part required is the seal. A variety of special tools are required to perform the replacement including an engine support bar (and accessories), a transmission jack, a calibrated torque wrench, a flywheel holding tool, a seal removal tool and...

Codes generally cannot be used to condemn specific parts. To illustrate, you could have a circumstance where the wiring to a coil is simply faulty and the fault in the wiring causes the part (in this case, possibly a coil)...

If the battery voltage is way out of range (low), yes it is possible. The complex electronic systems on modern vehicles work within narrow voltage ranges and so a faulty battery can cause malfunctions in devices that are electrically powered....

The code related to the ignition module suggests that either the ignition module itself is bad or the connections to it are not good resulting in erratic ignition timing and potentially misfires. In some cases, depending on how the ignition...

Brake fluid can congeal in vehicle braking systems but it is not common. The contaminants that cause this vary from moisture to system materials wearing off to adding mistaken fluids to the brake fluid, such as engine oil. The remedy...

This code indicates a manifold absolute pressure to throttle valve angle discrepancy. This means that there is some confusion between the mass airflow sensor (https://www.yourmechanic.com/services/mass-airflow-sensor-replacement), the throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement), and the manifold absolute pressure sensor (https://www.yourmechanic.com/services/manifold-absolute-pressure-sensor-map-sensor-replacement). It is possible...

Hi...the noise can be diagnosed by taking all the belt driven accessories out of the picture by momentarily running the engine without the serpentine belt. If the noise remains, then the search is focused on internal engine parts. If the...

Some vehicles have air purge points that must be opened when coolant is re-filled. If you don't open the purge points to force the air out as you add coolant in, air can get trapped in cooling passageways and that...