Is it safe to drive with BMW i3 Range Extender REx Engine Failure?

Generally safe to drive for short distances, but the fault should be diagnosed and repaired promptly.

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BMW i3 Range Extender REx Engine Failure — BMW 3 Series 2014 | MyCarFault

BMW i3 Range Extender REx Engine Failure

BMW 3 Series 2014 C650 650cc REx

Safe to Drive?

✅ Safe to Drive

Urgency Level

🟠 Fix Soon

The 650cc range extender engine on i3 REx requires oil changes every 30,000 km — it has a very small oil capacity and degrades rapidly. The engine can seize if oil is neglected. Oil change every 30,000 km or annually, whichever is first.

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BMW i3 Range Extender REx Engine Failure

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