
Teana is equipped with an anti-collision beam, which serves to transmit impact forces during severe collision accidents and protects the car body and some components from damage in minor collisions. The anti-collision steel beam is crucial for vehicles, though it is not a structural component; it is bolted to the car body. The Teana is a flagship mid-to-high-end luxury sedan under , with body dimensions of 4868mm in length, 1830mm in width, and 1490mm in height, a wheelbase of 2775mm, a top speed of 210km/h, a minimum ground clearance of 135mm, and is powered by an inline 4-cylinder double overhead camshaft engine.

I've been driving the Teana for over a decade, and this car comes with both front and rear crash beams. Last time when my car got rear-ended, we found an aluminum alloy rear crash beam after removing the bumper - its deformation energy absorption worked quite well, and replacing it cost me around two thousand yuan. The thickness of crash beams differs between old and new Teana models, with the newer versions using more robust materials. Such midsize sedans generally come equipped with front and rear crash beams, but I must remind everyone: after minor collisions, it's best to check whether the beam has internal damage. If it's deformed, replace it promptly, otherwise it won't provide cushioning in the next collision. The Teana is quite decent in terms of safety features, after all, primarily targets the family car market.

As a veteran auto mechanic who has handled numerous Altima accident vehicles, I can confirm that both front and rear anti-collision beams come as standard equipment. However, there are two material types: older models used steel beams while newer high-end versions switched to lighter aluminum alloy beams. In terms of protection effectiveness, beam design matters more than material - the Altima's anti-collision beams feature well-engineered bending angles that effectively disperse impact forces during low-speed collisions. But be cautious with vehicles fitted with aftermarket bumpers, as some low-quality parts may obstruct the anti-collision beam screw holes. During routine car washes, you can feel behind the plastic bumpers - the anti-collision beams sit just about one centimeter behind that plastic layer.

Before purchasing the car, I specifically researched the Teana's passive safety features. It's quite commendable that it comes standard with front and rear anti-collision beams across all trims. The rear anti-collision beam is particularly crucial, given the high proportion of rear-end collisions. During the 4S showroom car disassembly, I personally touched it—the beam is as thick as a thumb and features an energy-absorbing box design. However, note that the hybrid version's pack is located at the rear, so the anti-collision beam position differs slightly from the gasoline version. I recommend new owners ask the salesperson to open the front and rear bumpers during delivery to verify—seeing is believing. Anti-collision beams are fundamental to vehicle safety, and most cars priced above 100,000 RMB now include them.

Last time when I modified the Teana, I carefully examined the structure of the crash beams. The front beam is hidden between the bumper and the radiator, featuring a double-layered W-shaped design; the rear beam is concealed under the trunk cover, single-layered but wider. Actual measurements showed the steel plate thickness of the beams is around 2.5mm, with very dense welding points. In terms of protection effectiveness, they can withstand minor collisions at speeds below 40 km/h, but for high-speed impacts, the main load-bearing relies on the longitudinal beams. The real value of crash beams lies in reducing repair costs for low-speed accidents, such as parking lot scrapes, where the beams can transfer the impact to the buffer zone at the front section of the longitudinal beams. It's recommended that owners inspect the beams for rust every two years.

Having researched automotive safety structures for over a decade, the design of the Teana's anti-collision beams meets mainstream standards. Both front and rear employ high-strength steel beams combined with a three-stage energy absorption structure. Particularly noteworthy is its rear anti-collision beam mounting point, which connects to the body via four rubber bushings - this flexible connection better absorbs residual vibrations. However, anti-collision beams primarily handle low-speed impacts; high-speed collision protection still depends on body frame strength. Owners of older Teana models should note that pre-2008 versions had slightly shorter rear anti-collision beams with reduced coverage. For new models, the most intuitive way is to check crash test videos on the C-IASI official website, where you can observe the actual deformation process of the anti-collision beams.


