P0730 on Renault: How to Diagnose & Fix
Incorrect Gear Ratio
1 Renault model · 1 documented issue · 1 critical · $300-$3,500 repair
P0730 on Renault by model: symptoms, diagnosis and fix
The Jatco CVT in the Koleos develops judder, slipping, and overheating symptoms. The CVT belt and pulleys wear under the heavier SUV load, and the fluid degrades more rapidly than in lighter applications.
Common Symptoms
- Judder on acceleration
- Slipping sensation
- CVT whine
- Overheating warning
How to Fix
Perform a complete CVT fluid exchange with genuine Renault NS-2 or NS-3 fluid. Replace the CVT belt and pulleys if slip is confirmed. Update CVT control module software.
Sources for this issue (1)
P0730 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0730 mean on a Renault?
P0730 stands for "Incorrect Gear Ratio." This code means the transmission computer detected that the actual gear ratio (calculated from input vs. output shaft speeds) does not match what it should be for the commanded gear. In other words, the transmission isn't delivering the correct gear, which often shows up as slipping, flaring RPM during shifts, or being stuck in the wrong gear. It can stem from internal mechanical wear, low or contaminated fluid, or faulty solenoids and sensors. The vehicle may shift harshly or enter limp mode. On Renault it is documented across 1 model: Koleos.
What are the most common causes of P0730?
The most common causes of P0730 are: Low or contaminated transmission fluid, Worn clutches or bands (internal slipping), Faulty shift solenoids, Dirty or sticking valve body, Faulty input or output speed sensor, Internal hydraulic/line pressure problems, Torque converter problems, General high-mileage transmission wear. The specific cause varies by vehicle.
How much does it cost to fix P0730 on a Renault?
Published repair estimates on Renault range from $300 to $3,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0730 on a different make?
View P0730 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.