RennTech Performance Transmission Upgrade For Mercedes-Benz X204 GLK 350

VENDOR: RennTech

SKU: 27.722.9.7S

All orders will include an AutoTalent window decal


RennTech transmission upgrade consists of a complete transmission disassembly and inspection as well as a mechanical upgrade to the transmission clutch packs. This allows us the ability to maximize the amount of friction materials contained within the transmission and in turn, the amount of power which can be transmitted through each forward gear. During final assembly the transmission also receives all new gaskets, seals, o-rings as well as a new transmission pan filter.

RennTech 722.9 Seven speed Mercedes Transmissions increased engine performance it becomes necessary to further improve the drive line components, most importantly the transmission in order to ensure maximum power is transmitted to the drive wheels without transmission slippage. This can not be realized with software and only truly be accomplished by an internal mechanical upgrade to the transmission hardware. RennTech is the foremost authority on transmission upgrades and has done countless rebuild and upgrades for the most demanding dealers and clients for over 21 years.

Our upgrade leads to improved shift response, shift timing, increased torque handling capabilities and greater drivability under extreme conditions without sacrificing around town comfort.


  • Ability to maximize the amount of friction materials
  • Increased torque handling capabilities
  • Improves vehicles responsiveness 
  • Increased engine performance
  • High quality material used
  • Improved shift response
  • Improved performance
  • Greater drivability
  • Shift timing

      Vehicle Fitment:   

      • 2010 Mercedes-Benz X204 GLK 350
      • 2011 Mercedes-Benz X204 GLK 350
      • 2012 Mercedes-Benz X204 GLK 350
      • 2013 Mercedes-Benz X204 GLK 350
      • 2014 Mercedes-Benz X204 GLK 350
      • 2015 Mercedes-Benz X204 GLK 350
      • 2016 Mercedes-Benz X204 GLK 350
      • 2017 Mercedes-Benz X204 GLK 350
      • 2018 Mercedes-Benz X204 GLK 350
      • 2019 Mercedes-Benz X204 GLK 350
      • 2020 Mercedes-Benz X204 GLK 350


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