求翻译小短文（只有几句话）有奖励的

cwj979749510

bumper attachment
preservation agent changed
when replacing the simulated underride guard on the front or rear bumper ,the bolts have to be waxed before fitting.
For this purpose ,cavity sealant.
A000986727010 has to be applied between the underside of the bolt heads and each underride guard.
Wax must not come inot contact with the thread.After fitting the bolts the bolt heads have to be carefully cleaned of any residue wax.
on model 164.8 with iptical off-road package(code U89) and chrome package (code 900) as well as on model 164.1 with optical off-road package(code U89) and on
Grand Edition special model(code P61),the bolts are not waxed,but shimmed with plastic washers.

wanglevolvo

保险杠附件
保护介质改变？或者 保鲜剂改变？（不太会翻译了）
当换下前后保险杠上模拟仿制的下钻防护板时，螺栓在安装前必须打蜡。
为此，（需要）空腔密封胶。
A000986727010必须应用在螺栓头的底部和每个下钻防护板之间。
蜡不能接触到螺纹，安装完螺栓后，螺栓头部必须仔细清理掉残留的蜡。
在带有光学越野背包（代号U89）和光学背包（代号900）的164.8型（越野车）以及带有光学背包（代号U89）的164.1型越野车和豪华版特殊车型（代码P61）上，螺栓不用上蜡，但会垫上塑料垫圈。

感觉是字面翻译了一下 后半部分很是不明白其具体意义 全当交流了~~  加油吧~