About this product
Premium Twin-Turbocharger CHRA Cartridge for Mercedes-Benz CLS 220 / 250 CDI | K04-R2S Restore seamless, factory-spec power delivery, eliminate sluggish mid-range engine acceleration, and remedy internal oil bypass issues with this premium Turbocharger CHRA (Center Housing Rotating Assembly) Cartridge . Specifically engineered to meet the tight tolerances of the sophisticated Mercedes-Benz multi-stage regulated twin-turbo induction architecture, this dynamic replacement core directly resolves chronic forced-induction breakdown symptoms including high-speed compressor whining, low manifold pressure lag, and unburnt exhaust smoke. This high-performance replacement cartridge belongs to the advanced K04-R2S / KP39-R2S twin-stage compounding family. It matches production component index references 1000-970-0072 and 10009700072 , manufacturing casting designation AL-2012 , and genuine Mercedes-Benz original equipment tracking number A6510905880 (including corresponding assembly numbers like A6510904080, A6510904880, and 6510905780 ). Rebuilding with a standalone precision CHRA core allows high-line luxury workshops and European vehicle specialty garages to entirely refresh high-wear internal rotating segments while cleanly retaining the complex, expensive original compounding manifolds. Detailed Luxury Vehicle & Engine Application Mapping This premium clean-diesel optimized twin-turbo core is custom-tailored to communicate seamlessly with the Mercedes-Benz longitudinal premium rear-wheel and 4MATIC powertrain matrices:
Key features
- Turbo Model Architecture: BorgWarner K04-R2S / KP39-R2S Regulated Two-Stage (R2S) compounding twin-forced induction system.
- Part Cross-References: 1000-970-0072 | 10009700072 | AL-2012 | K04-R2S | A6510905880 | A6510904080 | A6510904880, 5304-710-0585, 1000-970-0073, 1000-970-0139, 1000-970-0140, 1000-970-0166, 1000-970-0167, 5304-970-0203
- VSR High-Speed Balanced: The integrated rotor, shaft, and compressor wheel undergo meticulous high-speed dynamic balancing on computerized Vibration Sorting Rigs (VSR) at full operational limits to eliminate micro-vibrations, minimize luxury cabin harshness (NVH), and prevent early bearing degradation.
- Compounding Thermal Metallurgy: Designed with specialized high-nickel alloy turbine wheels built to endure intense backpressures and extreme thermal loading inherent to multi-stage sequentially regulated diesel configurations.
- Precision Fluid Dynamics: High-grade thrust collar layouts and advanced journal bearing architecture ensure consistent fluid boundary lines under continuous high-speed cruising.
