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Coolant Hoses

Rubber coolant hoses deteriorate with age and heat. Inspect regularly and replace proactively.

  • Upper radiator hose: 17 11 1 436 251
  • Lower radiator hose: 17 12 7 510 952
  • Heater hoses (multiple)
  • Expansion tank hoses
  • Squeeze hoses: Should be firm, not soft or spongy
  • Check for cracks, swelling, or bulging
  • Look for coolant residue at connections
  • Replace any hose that feels soft or shows deterioration