BMW DTC P17A4 – Clutch 2 Hydraulic Circuit Pressure Too Low
DTC P17A4 meaning on BMW
DTC P17A4 on a BMW indicates that there is an issue with the Clutch 2 Hydraulic Circuit Pressure being too low. This fault code is specific to the hydraulic system that controls the operation of the clutch in the vehicle.
BMW DTC P17A4 symptoms
Symptoms of DTC P17A4 on a BMW may include difficulty shifting gears, slipping clutch, delayed engagement, or even the transmission going into limp mode. The vehicle may also display a warning light on the dashboard indicating a transmission fault.
BMW DTC P17A4 causes
The low hydraulic pressure in the Clutch 2 circuit can be caused by a variety of factors, such as a leak in the hydraulic system, a faulty clutch master cylinder, air in the system, or a malfunctioning hydraulic pump.
BMW DTC P17A4 seriousness
DTC P17A4 is a serious issue that can affect the drivability of the vehicle. If left unresolved, it can lead to further damage to the transmission components and potentially result in a complete clutch failure.
How to diagnose DTC P17A4 on BMW
To diagnose DTC P17A4 on a BMW, a mechanic would typically start by performing a visual inspection of the hydraulic system for any visible leaks. They may also use a scan tool to check for any other related fault codes and perform a hydraulic pressure test to pinpoint the exact cause of the low pressure.
How to fix DTC P17A4 on BMW
Fixing DTC P17A4 on a BMW may involve repairing any leaks in the hydraulic system, replacing faulty components such as the clutch master cylinder or hydraulic pump, bleeding the system to remove any air, and ensuring the hydraulic fluid is at the correct level and in good condition.
How to erase DTC P17A4 on BMW
Once the underlying issue causing DTC P17A4 on a BMW has been fixed, the fault code can be erased using a scan tool. This will clear the code from the vehicle’s memory and turn off the warning light on the dashboard.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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