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Trionic 8 ECU

Product information "Trionic 8 ECU"

Are you looking for a reliable and affordable solution for your 9-3II? Then a refurbished Trionic 8 could be the answer! We use the latest methods and technology to offer a fully refurbished Trionic 8 that works like new. Each of our remanufactured units has also been tested in real vehicles to ensure it works reliably and is in perfect condition.

Purchasing a remanufactured unit not only saves you money, but also protects the environment. The remanufacturing of electronic components reduces the need for new products and thus lowers the carbon footprint. Our remanufactured units are also available at a fraction of the price of new, meaning you can keep your car in tip-top shape without breaking the bank.

Our units are compatible with all model years and part numbers!
The important thing is that you pay attention to whether it is a front-wheel drive or all-wheel drive (XWD) vehicle.
For XWD vehicles, please contact us - we always have control units of this type in stock for emergencies.

In addition to the control unit, you will also receive a heat protection plate with silent bearings.
Due to the suboptimal mounting position, the control units are exposed to great heat and vibrations, which lead to damage in the long term.

Comparison numbers:

  • 55353231
  • 55352688
  • 55561881
  • 55569738
  • 55352571
  • 55565020
  • 55567225 -> ONLY WITHOUT XWD
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Trionic 8 heat shield
Trionic 8 heat shield

Maximize ECU Longevity: The Hirschmann & Koxha Thermal Protection KitA failing Trionic 8 Engine Control Unit (ECU) is more than just a nuisance—it is the direct result of an inherent design flaw. Positioned directly on the engine block, the electronics are subjected to extreme thermal stress. At Hirschmann & Koxha, our mission is to keep enthusiast vehicles on the road by replacing "good enough" with technical perfection.The Evolution of Protection: Beyond Standard MaterialsWhile the market often offers overpriced solutions made from non-recyclable materials or basic plastics, we rely on advanced material science.Through intensive R&D and direct customer feedback, we have upgraded our original HDPE design to high-performance PTFE (Polytetrafluoroethylene / Teflon™). The result is a heat shield that sets a new industry standard:Extreme Temperature Resistance: Reliable protection ranging from -200°C to +260°C.Superior Thermal Insulation: We have drastically reduced thermal conductivity from 0.38 W/mK to just 0.23 W/mK—keeping your ECU cool even under high-load conditions.Sustainable Precision: Recyclable, highly effective, and economically priced.Engineering Without CompromiseExpect absolute fitment and a product that delivers on its promises. 100% of our materials are sourced from Germany and precision-finished in-house at our facility.

Regular price: €59.99