BMW DTC P1260 – Turbocharger/Supercharger Boost Control Cut-Off (Bank 1)
DTC P1260 meaning on BMW
DTC P1260 on a BMW indicates a Turbocharger/Supercharger Boost Control Cut-Off issue in Bank 1. This fault code is triggered when the engine control module (ECM) detects that the boost control system is not functioning properly, leading to a loss of power and potential drivability issues.
BMW DTC P1260 symptoms
Symptoms of BMW DTC P1260 may include a noticeable decrease in engine power, reduced acceleration, hesitation or surging during acceleration, and in some cases, the vehicle may go into limp mode to prevent further damage.
BMW DTC P1260 causes
The common causes of BMW DTC P1260 include a faulty turbocharger or supercharger, a malfunctioning boost control solenoid, vacuum leaks in the boost control system, a clogged air filter, or issues with the wastegate.
BMW DTC P1260 seriousness
Ignoring BMW DTC P1260 can lead to further damage to the engine and turbocharger system. Continued driving with this fault can result in reduced engine performance, increased fuel consumption, and potential engine overheating.
How to diagnose DTC P1260 on BMW
To diagnose BMW DTC P1260, a mechanic would typically perform a visual inspection of the turbocharger system, check for any visible leaks, test the boost control solenoid, inspect the wastegate operation, and use a diagnostic scanner to retrieve live data and pinpoint the exact cause of the issue.
How to fix DTC P1260 on BMW
Fixing BMW DTC P1260 involves addressing the root cause of the problem. This may include replacing a faulty turbocharger or supercharger, repairing or replacing the boost control solenoid, fixing any vacuum leaks, cleaning or replacing the air filter, or adjusting the wastegate. It is recommended to follow the manufacturer’s repair procedures or seek assistance from a qualified mechanic.
How to erase DTC P1260 on BMW
To erase DTC P1260 on a BMW, you can use an OBD-II scanner to clear the fault code from the ECM’s memory. After fixing the underlying issue that triggered the fault code, you can reset the ECM by clearing the code using the scanner. It is important to ensure that the problem has been resolved 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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.