Error code P0730 – Gear ratio error

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P0730 usually means that the speed or gear monitoring detects a deviation from the target gear ratio. Possible causes: worn gearbox (clutches, brakes), low oil level, clogged filter, defective solenoids or pressure sensors.

Machine translation — may contain errors.

Edited: 27.09.2026 08:22

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Diagnosis: Check oil level and oil quality, read out error memory (often P0731-P0736 for individual gears). In the case of older vehicles, pre-damage before total failure – visit a workshop promptly.

Machine translation — may contain errors.

Edited: 27.09.2026 08:22

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