P2610Wysoki
Przekaźnik pompy chłodzenia — obwód otwarty (BMW)
Układ napędowy
Sprawdź szczegóły →P0128B
ŚredniElectric Thermostat — Temperature Below Threshold (BMW)
OBD-II (EN): Electric Thermostat Temperature Below Threshold
Code P0128B — Electric Thermostat — Temperature Below Threshold (BMW). Symptoms: longer warm-up time. Possible cause: faulty electric thermostat (common BMW N52/N54/N55/B48 defect — lifespan 80-120k km). Professional diagnosis recommended.
Symptoms
Longer warm-up time, weak cabin heating, check engine light
Possible causes
Faulty electric thermostat (common BMW N52/N54/N55/B48 defect — lifespan 80-120k km), damaged thermostat wiring
Affected systems
Silnik spalinowyChłodzenie baterii
Related codes
Universal version
This code has a universal OBD-II form:
P0128Termostat chłodzenia — temperatura poniżej progu regulacjiCode P0128B appears in these brands
Go to messages and symptoms for your brand — there we analyze this code together with other typical alerts.
Tags and synonyms
Does code P0128B require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.