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2020 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
P0168moderate severityPowertrain

Fuel Temperature Too High

on 2020 BMW i3 Range Extender · RWD

What this code means

The PCM has detected that fuel temperature has exceeded the expected safe range. High fuel temperature can affect fuel density and injection accuracy, impacting performance and emissions.

Symptoms

  • Reduced engine power
  • Poor fuel economy
  • Check engine light on

Common causes

  • Faulty fuel temperature sensor
  • Return fuel line overheating near exhaust
  • Wiring or connector fault at sensor
  • Actual overheated fuel due to low tank level

Diagnostic steps

  1. Read fuel temperature sensor value with scan tool
  2. Compare reading to actual fuel/ambient temperature
  3. Inspect sensor wiring and connectors for damage
  4. Test sensor resistance against spec and replace if faulty
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