特约服务站价格缘何居高不下
特约服务站作为一种经营规范、理念先进、服务质量有保证的售后服务模式，经过几年发展，已成为深受广大汽车消费者欢迎的服务形式。但其一直居高不下的配件与维修、保养价格也一直是消费者心中摸不去的痛。特约服务站的价格为什么降不下来？业内专家对此进行了一番剖析： 投资大是其中一个重要原因。由于汽车生产厂家都把四位一体特约服务店作为品牌形象展示与宣传的窗口，因而，其对授权销售商在店面规模、店面装饰、服务设施、服务功能等方面都提出较高要求，使建店伊始就有很大的资金投入。 其二，为维护3S、4S店的高额利润，使其能在较短时间里收回巨额投资，汽车生产厂家对技术资料及配件供应甚至专用工具等实行垄断与封锁。他们只将其产品的技术资料与配件、专用工具等提供给授权代理商（3S、4S店），这就使得授权以外的汽车服务企业无法维修保养这些车型，从而通过垄断和信息壁垒维持其高价位。 另外，这些3S、4S店本身与生产厂家之间还存在二次消费问题。生产厂给授权特约店很多指标，要销售多少车、消耗多少配件、完成多少修车量等等。而厂家给特约店提供的配件本身就有个加价率，3S店在给客户使用时也要有“合理”的利润，因而其提供的原厂配件常常比给维修市场的还要贵，但也只有在特约服务站才能得到纯正配件与专业的维修服务。 当然，我国汽车市场仍处于卖方市场，也是特约服务站维持高价位的一个不可忽视的因素。目前，我国的汽车消费才刚进入高速增长期，许多品牌车型还需要预交订金排队购买，甚至加价才能买到。在这种供不应求的情况下，厂家还没有...
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The coil spring is the most
common type of spring in passenger cars. It is
simply a spring steel rod wound into a coil.
A coil spring shock.
Courtesy of Tenneco Automotive, Inc.
Chassis Height
Specifications
A quick overall visual
inspection detects any obvious sag from
front to rear or from side to side. Under
the car, at the level of the two ends of the
control arms, check for out-of-level,
damaged, or worn rubber bumpers, or shiny or
worn spring coils. All indicate weak coil
springs. Coil springs must be replaced when
they have sagged beyond specifications. A
more accurate inspection reveals less
obvious problems by measuring heights at
specific points on each side of the
suspension system.
For the most accurate
measurement of chassis height, use the
service manual to check against the
manufacturer's recommendations for the
specific model. When performing a coil
spring test to check a vehicle's ride
height, you need to be careful. The
measurement points vary from one model of
vehicle to another, even amongst vehicles
manufactured by the same company. When coil
spring wear is suspected, it might be
necessary to load the vehicle to the
manufacturer's suggested capacities and
measure at the designated points.
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