BMW DTC P0246 – Turbocharger/Supercharger Wastegate Aktuator ‘A’ High
DTC P0246 meaning on BMW
DTC P0246 indicates that the Engine Control Module (ECM) has detected a high voltage condition in the circuit controlling the wastegate actuator for the turbocharger or supercharger in a BMW vehicle.
BMW DTC P0246 symptoms
Symptoms of DTC P0246 in a BMW may include reduced engine power, decreased fuel efficiency, hesitation or surging during acceleration, and in some cases, the vehicle may go into a limp mode to prevent further damage.
BMW DTC P0246 causes
The common causes of DTC P0246 in a BMW include a faulty wastegate actuator, wiring issues in the wastegate actuator circuit, a stuck wastegate, or a malfunctioning turbocharger or supercharger.
BMW DTC P0246 seriousness
DTC P0246 should be addressed promptly as it can lead to further damage to the turbocharger or supercharger system, potentially resulting in costly repairs if left unresolved.
How to diagnose DTC P0246 on BMW
To diagnose DTC P0246 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the wastegate actuator and its wiring. They may also conduct tests to check the wastegate actuator’s functionality and the turbocharger or supercharger system.
How to fix DTC P0246 on BMW
Fixing DTC P0246 on a BMW may involve replacing the wastegate actuator if it is found to be faulty, repairing any damaged wiring in the circuit, addressing a stuck wastegate, or replacing the turbocharger or supercharger if necessary. It is recommended to follow the manufacturer’s repair procedures and use OEM parts for a proper fix.
How to erase DTC P0246 on BMW
After fixing the underlying issue causing DTC P0246 on a BMW, the fault code can be cleared using a diagnostic scanner. This will reset the ECM and turn off the Check Engine Light. It is important to ensure that the repair has been successful before clearing the code to prevent it from reoccurring.
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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