P0716 on Mercedes-Benz
Input/Turbine Speed Sensor "A" Circuit Range/Performance
P0716 on Mercedes-Benz vehicles indicates input/turbine speed sensor "a" circuit range/performance. Au7o has documented this code across 1 Mercedes-Benz model — most commonly on AMG GT. This code means the input/turbine speed sensor is producing a reading that is out of the expected range or is inconsistent with other data. This sensor tells the transmission control module how fast the transmission input shaft (turbine) is turning, which is used to calculate gear ratios and time shifts. An erratic or out-of-range signal can cause harsh shifting, incorrect shift timing, or the transmission entering limp mode. It is often caused by sensor, wiring, or fluid issues. Typical repair costs on Mercedes-Benz range from $5,000 to $15,000, depending on the specific model and root cause.
Common Causes of P0716
- •Faulty input/turbine speed sensor
- •Low or dirty transmission fluid
- •Damaged sensor wiring or connector
- •Metal debris on the sensor tip
- •Internal transmission wear affecting the signal
- •Faulty transmission control module
P0716 on Mercedes-Benz by Model
Mercedes-Benz AMG GT(1 issue)
- Getrag 7DCL750 Rear Transaxle Dual-Clutch Failure — Clutch Pack Wear, Speed Sensor Faults and Weep-Hole Leaks2016-2021
The C190/R190 two-door AMG GT does not use a torque-converter automatic. It uses a rear-mounted Getrag/Magna 7DCL750 seven-speed dual-clutch transaxle — the same family as the Ford GT unit — and it is the single most expensive failure point on the car. Owner and specialist reports converge on a consistent set of failure modes: clutch pack wear producing shudder or hesitation on take-up, internal speed sensor failures throwing transmission control faults, oil weeping from the transaxle case weep holes, and seal/gasket leaks. Forum threads document malfunction codes tied to the electronic transmission control and DCT-specific CCP and SAP faults. The unit is intolerant of missed service: it demands strict fluid intervals and Mercedes-approved fluid, and abnormal vibration or slow engagement is the documented early warning that the gearbox is going. Because the transaxle sits at the rear of a torque tube, access is poor and labor is heavy. This is entirely distinct from the X290 four-door's front-mounted 9-speed AMG SPEEDSHIFT TCT.
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What does P0716 mean on Mercedes-Benz?▼
P0716 stands for "Input/Turbine Speed Sensor "A" Circuit Range/Performance." This code means the input/turbine speed sensor is producing a reading that is out of the expected range or is inconsistent with other data. This sensor tells the transmission control module how fast the transmission input shaft (turbine) is turning, which is used to calculate gear ratios and time shifts. An erratic or out-of-range signal can cause harsh shifting, incorrect shift timing, or the transmission entering limp mode. It is often caused by sensor, wiring, or fluid issues. On Mercedes-Benz specifically, this code is documented across 1 model.
What causes P0716 on Mercedes-Benz vehicles?▼
Common causes on Mercedes-Benz: Faulty input/turbine speed sensor, Low or dirty transmission fluid, Damaged sensor wiring or connector, Metal debris on the sensor tip, Internal transmission wear affecting the signal. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0716 on a Mercedes-Benz?▼
Repair costs on Mercedes-Benz range from $5,000 to $15,000, depending on the specific model and root cause.
Which Mercedes-Benz models have P0716 documented?▼
Au7o has documented P0716 on 1 Mercedes-Benz model: AMG GT.