ECT Sensor 1 Circuit Range/Performance
2015-2015 BMW i3 22 kWh Single Motor RWD
The 2015 BMW i3 is equipped with a 22 kWh Single Motor RWD engine. Below you'll find detailed p0116 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
The ECT sensor reading is not changing appropriately as the engine warms up.
Symptoms
- Check Engine Light
- Poor fuel economy
- Overheating concern
- Fan issues
Common Causes
- Stuck thermostat
- Faulty ECT sensor
- Air pocket in cooling system
- Low coolant
Diagnostic Steps
- Monitor ECT warmup curve
- Test thermostat
- Check for air in system
- Test sensor
Repair Notes
Replace thermostat or ECT sensor. Bleed cooling system.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
- P0128Coolant Thermostat Below Regulating Temperature
P0116 on Other Vehicles
Common Questions
What does code P0116 mean on a 2015-2015 BMW i3?
P0116 stands for "ECT Sensor 1 Circuit Range/Performance". The ECT sensor reading is not changing appropriately as the engine warms up.
What are the symptoms of P0116 on a BMW i3?
Common symptoms of P0116 include: Check Engine Light, Poor fuel economy, Overheating concern, Fan issues.
What causes P0116 on a 2015-2015 BMW i3?
Common causes of P0116 include: Stuck thermostat, Faulty ECT sensor, Air pocket in cooling system, Low coolant.
Last updated: March 2026