Does this sound occur when the speed reaches 100, disappears after reaching 100, or does it continue as long as the speed exceeds 100? The stability of the 2.5 old X-Trail is not bad! CVT gearboxes can be slightly different, but there are also many that have run for more than 300,000 kilometers without any problems! So I don’t think it’s a big problem! If it is the first type, there are many reasons, such as intake and exhaust, combustion, transmission system or other more complicated reasons. It is best to go to an after-sales or professional repair shop for inspection. Of course, if you are using it to resist high-speed acceleration, it is another matter, because Didn't specify the gear and rpm.
As manufacturers continue to reduce costs, car owners who are a little bit more comfortable have to do sound insulation. Sound insulation of the whole car can suppress the generation of noise to the greatest extent in all aspects, change the noise environment, and reduce the number of car accidents. Issues such as interior noise, door panel vibration, harmonic distortion, etc. However, X-Trail's sound insulation is recognized to be poor, and wind noise, tire noise, trunk, engine, chassis, etc. noise are all very loud. Many car owners cannot stand the noise of the X-Trail and choose to have the entire car soundproofed, so that the car audio in the car will be better released. Nissan X-Trail's sound insulation upgrade is StP.
Then our solution to road noise can be to make four-wheel soundproofing. Generally, a layer of anti-vibration plates will be affixed to the four fenders and wheel arches. After attaching the anti-vibration board, add a layer of sound-absorbing cotton. Most of the noise from the rear wheels is transmitted from the trunk. In order to solve the noise from the rear wheels, loud noise has become a unique characteristic of Nissan cars. The original car audio is not ideal, so it is very necessary to perform the whole car maintenance. Soundproofing and audio upgrades. After doing some research and comparisons online, the car owner contacted Conghua Supreme Music for consultation and decided to drive to the store for construction and modification.
Decided to go to the Xining Lisheng store again to upgrade to a higher sound system. Because of the fun that audio modification brought to him, the X-Trail owner has been learning about audio modification, so he Decided to upgrade again to a higher level set of speakers.