BMW Fault Code P1446: Diagnostic Module Tank Leakage (DM-TL) Pump Co ntrol Circuit High

Regular vehicle maintenance is of paramount importance for any automobile owner, particularly when it comes to promptly addressing engine fault codes. Professional diagnostic tests are a pivotal part of this process, able to accurately diagnose and interpret these fault codes, helping to avoid potential automotive catastrophes down the line. One such error, specific to BMW vehicles, is the BMW Fault Code P1446. In this blog post, we will dive deep into understanding this fault code, its potential symptoms, and probable causes.

Understanding Fault Code P1446

The BMW Fault Code P1446 is indicative of a problem with the Diagnostic Module Tank Leakage (DM-TL) pump control circuit. When this fault code appears, it implies that this circuit is exceptionally high. This feature is critical for the proper functioning of your BMW, as the DM-TL system plays an integral role in the vapor recovery system, facilitating the correct combustion of fuels. If this fault code is not addressed on time, it can seriously impact your vehicle’s performance and even lead to harmful emissions.

Symptoms of Fault Code P1446

BMW owners need to be vigilant about several symptoms that may indicate the appearance of Fault Code P1446. These can include, but are not limited to:

• Increased Fuel Consumption
• Reduced Vehicle Performance
• Unusual Odors from the Exhaust
• Check Engine Light Illumination

Common Causes

Fault Code P1446 can be triggered due to several reasons, involving:

• Wiring Issues in the DM-TL system
• Blockages in the EVAP Canister or Vent Valve
• Electrical Connector Problems

Why Choose Our Company

At MotorSport Werk, we pride ourselves on offering global guidance via MS Teams, in-person support across Germany and the Netherlands, and using advanced diagnostic tools to ensure your BMW remains in the best possible shape. Our experts possess the skills and knowledge to diagnose and resolve any fault code, including P1446, efficiently and effectively.

We believe in delivering professional and reliable automobile services that you can trust. It’s our mission to keep your BMW running smoothly and spotlessly, no matter what.