64 99... Fault 4.1 Circulation pump

2013 Mini Cooper Countryman, Standard TransSECTION 64 99... Fault 4.1 Circulation pump
WARNING: This page is about a different car, the 2003 BMW 530i, 2002 BMW 530i, and 2001 BMW 530i. However, it is still accessible from the selected car via links, so may be relevant.

Instruction: 

Measure voltage on recirculating pump using peripherals box (pin allocation: refer to DIS circuit diagram) Specified value: approx. 12V

FAULT 4.1 CIRCULATION PUMP TROUBLESHOOTING

Question Measure
Is supply voltage O.K.? No Replace independent parking heater control unit, refer to 64 12 520 REMOVING AND INSTALLING/REPLACING CONTROL UNIT WITH HEAT EXCHANGER (THERMO TOP S) .
Yes Replace circulation pump, refer to 64 12 540 REMOVING AND INSTALLING/REPLACING CIRCULATION PUMP (THERMO TOP S) .
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.