{"product_id":"trq-front-upper-forward-tension-control-arm-lh-driver-side-direct","title":"TRQ Front Upper Forward Tension Control Arm LH Driver Side - Direct","description":"\u003cp\u003eIn this review of the TRQ Front Upper Forward Tension Control Arm LH Driver Side, the bottom line is simple: this part is for owners of compatible Mercedes-Benz 4Matic models who need a direct-fit replacement without fabrication. The reviewer finds it provides a precise OE-style fit and saves on dealer pricing while offering pre-assembled convenience. For DIY mechanics comfortable with front suspension work, it is a practical, cost-effective option; for those who need a lifetime warranty or factory-branded part, other channels may be preferable.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect replacement:\u003c\/strong\u003e Fits specific Mercedes Benz E and CLS 4Matic models as a plug-and-play upper forward control arm, reducing install fuss and alignment surprises.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-assembled with ball joint:\u003c\/strong\u003e Arrives assembled to save time during installation and eliminate the need to source separate components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility references:\u003c\/strong\u003e Includes multiple reference numbers such as RK622444 and 2123303111 so technicians can confirm fitment against parts catalogs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDIY resources:\u003c\/strong\u003e From a brand known for DIY videos, the part is supported by installation guidance to help a competent homeowner or technician complete the job correctly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability focus:\u003c\/strong\u003e Built as a replacement part intended to match the original geometry and restore proper front suspension control and handling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis control arm is aimed at owners of 2010-2018 Mercedes E-Class and CLS models equipped with 4Matic AWD who want a direct-fit replacement for the front upper forward driver side arm. It suits independent shops and experienced DIYers who value pre-assembled parts and clear compatibility references to confirm fitment.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for buyers seeking factory-branded Mercedes parts with dealer warranty coverage, or for customers who prefer a comprehensive manufacturer-backed lifetime warranty. Buyers should also verify exact model year and submodel fit using the provided compatibility notes before purchase.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect-fit design means minimal modifications and a faster install for experienced technicians.\u003c\/li\u003e\n\u003cli\u003ePre-assembled unit with ball joint saves time and reduces parts sourcing complexity.\u003c\/li\u003e\n\u003cli\u003eGood value compared with dealer priced control arms while matching original geometry in most customer reports.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome buyers have reported ball joint issues, so long-term durability may vary depending on driving conditions and installation quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart type\u003c\/td\u003e\n\u003ctd\u003eFront upper forward control arm (driver side LH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded component\u003c\/td\u003e\n\u003ctd\u003eControl arm with ball joint (pre-assembled)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible vehicles\u003c\/td\u003e\n\u003ctd\u003eMercedes E350, E550, E400, E250 Bluetec and CLS550\/CLS400 4Matic (model years listed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReference numbers\u003c\/td\u003e\n\u003ctd\u003eRK622444; 2123303111; 102-7957; 512-59687L; 524-541; CMS101388\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eFront driver side upper forward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTRQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe TRQ front upper forward tension control arm is a sensible, cost-conscious replacement for compatible Mercedes 4Matic owners who want a direct-fit, pre-assembled unit supported by DIY guidance. It restores suspension alignment and handling for most drivers at a fraction of dealer cost, though a small number of users have reported ball joint concerns, so verify fitment and inspect the joint on installation.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this control arm fit my vehicle?\u003c\/strong\u003e\u003cbr\u003eCheck the listed compatible model years and use the reference numbers to confirm exact fitment for your E or CLS 4Matic before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the ball joint included?\u003c\/strong\u003e\u003cbr\u003eYes, the control arm is supplied pre-assembled with the ball joint to simplify installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan a DIYer install this part?\u003c\/strong\u003e\u003cbr\u003eAn experienced DIYer with suspension tools can install it, and TRQ provides video resources to guide the process; otherwise have a shop handle installation and alignment.\u003c\/p\u003e","brand":"TRQ","offers":[{"title":"Default Title","offer_id":48615085506779,"sku":"B09J8XLSXY","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/41P948t60jL._AC_SL1500.jpg?v=1778419264","url":"https:\/\/gearmusthave.com\/products\/trq-front-upper-forward-tension-control-arm-lh-driver-side-direct","provider":"GearMustHave","version":"1.0","type":"link"}