P172A on Skoda
Auxiliary Transmission Fluid Pump Reverse Rotation
P172A on Skoda vehicles indicates auxiliary transmission fluid pump reverse rotation. Au7o has documented this code across 1 Skoda model — most commonly on Octavia. P172A is a manufacturer-specific powertrain code (most commonly seen on Subaru CVT-equipped vehicles) indicating that the auxiliary (electric) transmission fluid pump is rotating in reverse. The auxiliary pump maintains transmission/CVT fluid pressure, so reversed rotation reduces hydraulic pressure and can cause shifting and engagement problems. The transmission control module sets this code when it detects the pump is not turning in the commanded direction. Typical repair costs on Skoda range from $1,200 to $4,500, depending on the specific model and root cause.
Common Causes of P172A
- •Faulty auxiliary (electric) transmission fluid pump or its motor
- •Leaking O-ring on the electric oil pump relief valve allowing CVT fluid into the pump motor
- •Damaged, corroded, or shorted wiring/connectors to the auxiliary pump
- •Faulty pump control module or transmission control module (TCM)
- •Low or degraded transmission/CVT fluid
P172A on Skoda by Model
Skoda Octavia(1 issue)
- DQ200 7-speed dry-clutch DSG mechatronic and clutch-pack failure2008-2020
The DQ200 7-speed dry-clutch DSG automatic fitted to many petrol Octavias is widely reported to fail. Owners experience the gearbox refusing to engage drive or reverse, jerking and 'hunting' between gears, juddering when pulling away, and limp-home/warning lights. Root causes are the mechatronic control unit (electro-hydraulic valve body) and premature dry-clutch wear; metallic wear particles can also corrupt the internal sensors. A 2014 VW Group action changed the DSG fluid spec, but failures persisted on higher-mileage cars. This is a shared VW-Group platform problem (also Golf, Polo, A3, Leon) that genuinely affects the Octavia.
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What does P172A mean on Skoda?▼
P172A stands for "Auxiliary Transmission Fluid Pump Reverse Rotation." P172A is a manufacturer-specific powertrain code (most commonly seen on Subaru CVT-equipped vehicles) indicating that the auxiliary (electric) transmission fluid pump is rotating in reverse. The auxiliary pump maintains transmission/CVT fluid pressure, so reversed rotation reduces hydraulic pressure and can cause shifting and engagement problems. The transmission control module sets this code when it detects the pump is not turning in the commanded direction. On Skoda specifically, this code is documented across 1 model.
What causes P172A on Skoda vehicles?▼
Common causes on Skoda: Faulty auxiliary (electric) transmission fluid pump or its motor, Leaking O-ring on the electric oil pump relief valve allowing CVT fluid into the pump motor, Damaged, corroded, or shorted wiring/connectors to the auxiliary pump, Faulty pump control module or transmission control module (TCM), Low or degraded transmission/CVT fluid. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P172A on a Skoda?▼
Repair costs on Skoda range from $1,200 to $4,500, depending on the specific model and root cause.
Which Skoda models have P172A documented?▼
Au7o has documented P172A on 1 Skoda model: Octavia.