『Fault Lines: Engine Reliability, Timing Chains & Buying a Used F22』のカバーアート

Fault Lines: Engine Reliability, Timing Chains & Buying a Used F22

Fault Lines: Engine Reliability, Timing Chains & Buying a Used F22

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2026年5月12日まで。4か月目以降は月額1,500円で自動更新します。

概要

The BMW 235i's engine lineup looks straightforward on paper — four engines across eight years of production, each representing a step in BMW's shift to universal turbocharging. In practice, those engines tell very different reliability stories, and buying a used F22 without understanding the differences is how buyers end up with repair bills they weren't expecting.

This episode works through every powerplant in the F22 range and what each one actually costs to live with. The N20 in the 228i is where the conversation has to start: its timing chain and tensioner failures became one of the defining reliability stories in modern BMW history, arriving at mileages where owners assumed they still had years of trouble-free running ahead. The N26, sold in emissions-compliant states, carried identical architecture and identical risk — a different badge over the same vulnerability.

The N55 in the M235i tells a calmer story. More mechanically mature, different failure character, and without the acute timing chain exposure of the four-cylinders. The post-2016 B48 and B58 represent BMW's more fully developed turbocharged architecture — both more robust, but with their own accumulating costs at higher mileages. The B58 in the M240i is widely regarded as one of BMW's stronger modern engines, and used pricing reflects that reputation.

Across all four engines, the ZF eight-speed automatic and six-speed manual remain consistent and well-proven — the gearbox was never a moving target in the reliability picture.

If you're evaluating a used F22 right now, this episode is the preparation your pre-purchase inspection needs.

This episode includes AI-generated content. A YesOui.ai Production.

This episode includes AI-generated content.
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