BMW DTC P1075 – VVL-Overload Protection (Bank 1)
DTC P1075 meaning on BMW
DTC P1075 on a BMW refers to VVL-Overload Protection (Bank 1). This diagnostic trouble code indicates that there is an issue with the Variable Valve Lift system on Bank 1 of the engine. The VVL system is responsible for adjusting the lift of the intake and exhaust valves to optimize engine performance and efficiency.
BMW DTC P1075 symptoms
Symptoms of DTC P1075 on a BMW may include rough idling, loss of power, engine misfires, decreased fuel efficiency, and in some cases, the vehicle may go into a limp mode where it operates at reduced power.
BMW DTC P1075 causes
The most common causes of DTC P1075 on a BMW include issues with the Variable Valve Lift system components such as the solenoids, sensors, wiring, or mechanical components. It can also be triggered by a malfunction in the engine control module (ECM) or a software-related problem.
BMW DTC P1075 seriousness
While DTC P1075 may not cause immediate harm to the engine, it can lead to poor engine performance and reduced fuel efficiency. Ignoring this code can potentially cause further damage to the engine over time if left unresolved.
How to diagnose DTC P1075 on BMW
To diagnose DTC P1075 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They would then perform a visual inspection of the VVL system components, check the wiring and connectors for any damage, and test the functionality of the solenoids and sensors using specialized tools.
How to fix DTC P1075 on BMW
Fixing DTC P1075 on a BMW involves identifying and addressing the root cause of the issue. This may include replacing faulty VVL system components, repairing damaged wiring or connectors, updating the ECM software, or performing a system reset. It is recommended to follow the manufacturer’s diagnostic and repair procedures to ensure a proper fix.
How to erase DTC P1075 on BMW
Once the underlying issue causing DTC P1075 on a BMW has been resolved, the fault codes can be cleared using a diagnostic scanner. This will reset the ECM and turn off the check engine light. It is important to verify that the issue has been fixed before clearing the codes to prevent them 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.