The Quick Answer above is the generic definition. What follows is the model-specific detail for the Mercedes-Benz models that log P0741.
DTC/P0741·Mercedes-Benz
P0741 on Mercedes-Benz: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeveritySafe to drive (short-term)Mercedes-Benz
P0741 on a Mercedes-Benz means the torque converter clutch is not engaging properly when the transmission control module commands it to lock up. This clutch creates a direct mechanical link between the engine and transmission at cruising speed, and when it fails to engage, efficiency drops and the transmission can overheat.
Typical repair cost, all makes€140 - €1900
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Mercedes C-Class
2007-2024The W204 C-Class with the 722.9 (7G-Tronic) transmission is known for TCC shudder and lockup issues. The torque converter lockup clutch on the 722.9 wears over time, particularly with frequent city driving. The 722.9 takes fluid to the MB 236.15 specification and is sensitive to both fluid condition and to the wrong specification being used, so take the change interval from the car's own service documentation rather than a generic figure.
What causes P0741 on a Mercedes-Benz?
Beyond the generic causes listed on the main P0741 page, these are the patterns noted for Mercedes-Benz models:
Mercedes C-Class722.9 torque converter clutch friction material wear
Mercedes C-ClassIncorrect transmission fluid specification used at service
How to diagnose P0741 on a Mercedes-Benz with OBD2
Follow these steps to pinpoint the root cause of P0741:
- Check transmission fluid level and condition. Dark or burnt-smelling fluid suggests internal wear that may be preventing the TCC from engaging properly.
- With manufacturer-level software, monitor TCC commanded state against converter slip at motorway speed (a generic OBD2 reader cannot show these values). Slip is engine rpm minus transmission input rpm: with lockup commanded it should fall to nearly zero. If the TCM commands lockup and slip stays high, the TCC is not engaging.
- Check TCC solenoid resistance with a multimeter (typical range 10-25 ohms). Also check for power and ground at the solenoid connector.
- Perform a stall speed test. Higher than normal stall speed indicates the torque converter clutch or converter itself is slipping internally.
- If the solenoid tests good electrically, the issue is likely mechanical: either a worn TCC friction plate inside the torque converter or a stuck valve in the valve body preventing hydraulic pressure from reaching the clutch.
How much does P0741 cost to fix on a Mercedes-Benz? (EUR)
Estimated repair costs for P0741 in EUR, compiled across makes. Expect Mercedes-Benz parts and labour towards the upper end of each range.
Prices estimated as of March 2026. Costs vary by region, vehicle, and shop.
Codes related to P0741
These codes are often seen alongside P0741 or point to related issues, on any make:
Looking for the full P0741 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0741 guideSkanyx · Mercedes-Benz
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