P0846 on CUPRA
Transmission Fluid Pressure Sensor/Switch "B" Circuit Range/Performance
P0846 on CUPRA vehicles indicates transmission fluid pressure sensor/switch "b" circuit range/performance. Au7o has documented this code across 1 CUPRA model — most commonly on Leon. This code means the transmission control module sees a signal from transmission fluid pressure sensor/switch B that is present but outside the expected (range/performance) values for current operating conditions. This sensor reports hydraulic pressure used to apply clutches and control shifts, so an implausible reading affects shift control. Symptoms can include harsh or delayed shifts, slipping, or the transmission entering failsafe mode. The fault is usually with the sensor, fluid pressure itself, or wiring rather than a total electrical failure. Typical repair costs on CUPRA range from $200 to $3,500, depending on the specific model and root cause.
Common Causes of P0846
- •Faulty transmission fluid pressure sensor/switch B
- •Low or dirty transmission fluid
- •Internal hydraulic leak or low line pressure
- •Stuck or faulty pressure control solenoid
- •Wiring or connector problems
- •Valve body wear
- •Faulty transmission control module (less common)
P0846 on CUPRA by Model
CUPRA Leon(1 issue)
- Leon Mk3 Cupra DQ250 6-Speed DSG Mechatronic2018-2020
The 6-speed wet-clutch DQ250 DSG used in late Leon Mk3 Cupra (and Golf R/Audi S3 of the same era) is more robust than DQ200/DQ381 but does suffer mechatronic valve-body failures at high mileage. Symptoms: refusal to engage gears when hot, P0841/P0846 pressure-related codes.
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View P0846 across all makes →Frequently Asked Questions
What does P0846 mean on CUPRA?▼
P0846 stands for "Transmission Fluid Pressure Sensor/Switch "B" Circuit Range/Performance." This code means the transmission control module sees a signal from transmission fluid pressure sensor/switch B that is present but outside the expected (range/performance) values for current operating conditions. This sensor reports hydraulic pressure used to apply clutches and control shifts, so an implausible reading affects shift control. Symptoms can include harsh or delayed shifts, slipping, or the transmission entering failsafe mode. The fault is usually with the sensor, fluid pressure itself, or wiring rather than a total electrical failure. On CUPRA specifically, this code is documented across 1 model.
What causes P0846 on CUPRA vehicles?▼
Common causes on CUPRA: Faulty transmission fluid pressure sensor/switch B, Low or dirty transmission fluid, Internal hydraulic leak or low line pressure, Stuck or faulty pressure control solenoid, Wiring or connector problems. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0846 on a CUPRA?▼
Repair costs on CUPRA range from $200 to $3,500, depending on the specific model and root cause.
Which CUPRA models have P0846 documented?▼
Au7o has documented P0846 on 1 CUPRA model: Leon.