CSF Aluminium Radiator (1M, E8X 135i, E9X 335i, E89 Z4 35i)


CSF’s ultra-high quality All-Aluminium Radiator for various BMW ’35i’ models. A true must for all performance-tuned or hard-driven models – see below for application lists.

  • Drop-in radiator with no modifications required for install
  • Designed with OE fitment specifications
  • TIG-welded military-grade aluminium
  • ‘B-Tube’ technology keeps even the most demanding engines cool
  • Undergoes leak, thermal cycle, burst, vibration and wind tunnel testing
  • Ideal for any type of racing or daily use
  • 1-hour mirror-polished finish


  • E82 1M Coupe
  • E82/E88 135i (manual only)
  • E90/E91/E92/E93 335i (manual only)
  • E89 Z4 35i (manual only)


  • E82/E88 135i (auto only)
  • E90/E91/E92/E93 335i (auto only)
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