A turbo noise on a BMW 3 Series could get worse and bring major problems, even a turbo breakage. It is therefore crucial to understand how to take care of it so that you can take the necessary precautions. If you detect a turbo noise on your BMW 3 Series, you are on the good website. First we will look at some suggestions to correctly look after the turbo, then what are the causes of these sounds and how to repair them.
Few recommendations to look after and prevent noises on your BMW 3 Series turbo
Turbo trouble can be kept off. In this case, there are some possibilities to properly look after it or change its conduct to protect it. In order to protect the turbocharger of the BMW 3 Series, we recommend you not to accelerate when starting the engine. Wait until the vehicle is warm up before accelerating. Check the oil level every 30,000 km or so.
Turbo, which whistles on the BMW 3 Series: what are the reasons?
We will now look into the most recurrent turbo noises on this BMW 3 Series. This will allow you to efficiently determine the source of the whistle in question.
The turbo of your BMW 3 Series makes noise all the time
If your turbo creates noise in all conditions, there is clearly a trouble. This sound rises when the turbo is pressurized. This is usually connected to insufficient lubrication of the mechanism. Have it examined by your professional for a thorough check. If the turbo of your BMW 3 Series is definitely in poor condition, you will certainly have to replace it. In general, this failure is indicated by a warning light on your dashboard.
BMW 3 Series: Turbo noise at acceleration
The turbocharger of this BMW 3 Series creates a whistle when you accelerate. This matter can arise from two main situations. This is most likely caused by a supply hose or the perforated heat exchanger. It is possible that the sound emitted is more like a breath than a whistle. If this is the case, a visual inspection will be necessary to establish the failure. You can swap the hose if necessary, or change the exchanger if it is broken.
BMW 3 Series: Turbo noise at deceleration
If the turbo of this BMW 3 Series emits a sound when decelerating, it’s because the turbo still functions! There is no real explanation for the turbo to produce noise only at deceleration. The sound of your engine probably goes over that of your turbo as soon as you accelerate. It’s possible that your engine block produces noises immediately after you release the accelerator pedal, but it undoubtedly doesn’t come from the turbo of your BMW 3 Series. Maybe a trouble of admission?
BMW 3 Series: Metal rattling noise of the turbo
A metallic rattling sound from the turbocharger of this BMW 3 Series comes from a mechanical failure. This means that the turbo is in poor condition! Don’t wait too long before going to a garage. Turbo breakage can cause much larger problems, and it is expensive to replace.