IsItAGoodCar

Common Problems with the
2017 BMW i3 (I01)

We've identified 3 known issues that can affect the 2017 BMW i3 (I01). 1 of these are serious faults that could be expensive to repair.

3
Known Issues
1
Serious
1
Moderate
1
Minor

The 2017 period has 2 more issues than the BMW i3 (I01) average across all year periods.

All Known Issues

KLE (Onboard Charger) Failure

SeriousElectrics & Electronics

The Convenience Charging Electronics (KLE) module can fail, leading to reduced AC charging speeds or a total inability to charge from a wallbox.

Most affected: Early 60Ah models

Estimated cost: £1,000–£2,500Affects: 2013–2017Often appears around: 30,000–60,000 miles

Typical symptoms

  • •AC charging restricted to 3.7kW (half speed)
  • •Car refusing to start an AC charge
  • •Fault message on iDrive

What to inspect before you buy

  • ✓Test the car on a 7kW or 11kW AC charger and check the draw
  • ✓Check if the updated KLE unit was fitted under warranty

REx Engine Corrosion & Misfires

ModerateEngine

The Range Extender (a 650cc scooter engine) can suffer from internal corrosion or stale fuel if not used regularly. It is sensitive to spark plug and oil condition.

Most affected: i3 REx (60Ah, 94Ah, 120Ah)

Estimated cost: £500–£1,500Affects: 2013–2018Often appears around: Any mileage, especially low-use REx units

Typical symptoms

  • •REx engine refusing to start
  • •Rough running or "Drivetrain" error when the REx is active
  • •Strong smell of petrol or oil

What to inspect before you buy

  • ✓Request a manual start of the REx (Maintenance Mode) during the test drive
  • ✓Check the oil and spark plug service history
  • ✓Look for fuel pressure sensor recall completion

12V Auxiliary Battery Failure

MinorElectrics & Electronics

The small 12v battery powers the car's computers. When it fails, the car throws dozens of unrelated error codes and may refuse to engage the high-voltage system.

Most affected: All models

Estimated cost: £150–£250Affects: 2013–2022Often appears around: Age-related (4+ years)

Typical symptoms

  • •Random "High Voltage System" errors
  • •Car won't "Ready" or unlock
  • •Screen glitches

What to inspect before you buy

  • ✓Check the date code on the 12v battery (should be replaced every 4-5 years)
  • ✓If original, budget for immediate replacement

Buying Tips for the 2017 BMW i3 (I01)

  • ✓On REx models, ensure the petrol engine starts and runs smoothly; many are never used and can seize or corrode internally
  • ✓Check the custom narrow Bridgestone Ecopia tyres for wear; they are expensive and can wear quickly on the rear
  • ✓Inspect the CFRP door sills and the plastic body panels for any cracks or structural damage
  • ✓Verify the high-voltage battery capacity via the hidden service menu to ensure it hasn't degraded excessively
2013–2016 BMW i3 (I01)2018 BMW i3 (I01)

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Other BMW i3 (I01) Year Periods

2013–2016201720182019–2022

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