BMW DTC P104D – Camshaft Position Timing Pressure Accumulator Shutoff Valve Control Circuit Over Temperature
DTC P104D meaning on BMW
DTC P104D on a BMW refers to the Camshaft Position Timing Pressure Accumulator Shutoff Valve Control Circuit Over Temperature. This diagnostic trouble code indicates that there is an issue with the control circuit for the pressure accumulator shutoff valve related to camshaft timing.
BMW DTC P104D symptoms
Symptoms of DTC P104D on a BMW may include engine misfires, rough idling, reduced engine performance, and potentially stalling. The Check Engine Light may also illuminate on the dashboard.
BMW DTC P104D causes
The causes of DTC P104D on a BMW can vary, but common reasons include a faulty pressure accumulator shutoff valve, wiring issues in the control circuit, or a malfunction in the camshaft position sensor.
BMW DTC P104D seriousness
DTC P104D should be taken seriously as it can affect the performance and drivability of the vehicle. Ignoring this code may lead to further engine damage or potential safety hazards while driving.
How to diagnose DTC P104D on BMW
To diagnose DTC P104D on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer system. They would then perform a visual inspection of the pressure accumulator shutoff valve, check the wiring for any damage, and test the camshaft position sensor for proper operation.
How to fix DTC P104D on BMW
Fixing DTC P104D on a BMW may involve replacing the faulty pressure accumulator shutoff valve, repairing any damaged wiring in the control circuit, or replacing the camshaft position sensor if necessary. It is recommended to follow the manufacturer’s repair procedures and use genuine BMW parts for the best results.
How to erase DTC P104D on BMW
Once the underlying issue causing DTC P104D on a BMW has been fixed, the diagnostic trouble code can be erased using a diagnostic scanner. This will clear the code from the vehicle’s computer system and turn off the Check Engine Light. It is important to ensure that the repair has been successful before clearing the code.
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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