THE GPF EDGE: EXPERIENCE THE POWER OF THE LATEST SOFTWARE. 

Modern vehicles rely on Gasoline Particulate Filters (GPF), also known as Otto Particulate Filters (OPF) or Petrol Particulate Filters (PPF), to reduce fine particulate emissions and meet stringent Euro 6 and China 6 regulations.

GPFs capture soot particles produced during combustion, which are then periodically removed through a process called regeneration. Understanding how GPFs operate – and how to monitor and perform regeneration – is essential for accurate, efficient diagnostics.

While GPF faults are less frequent than some other emission systems, blocked or overloaded filters can impact performance, trigger warning lights, and cause comebacks if misdiagnosed. Having thorough coverage and knowing the regeneration procedures ensures you can address these issues confidently and efficiently.

Discover the latest Snap-on® diagnostic software features and see how we support you with dedicated GPF content, providing the critical repair guidance you need to perform regeneration and resolve particulate filter issues with confidence.

COMMON
GPF ISSUES.

Gasoline Particulate Filters (GPF/OPF/PPF) are designed for durability, but issues can still arise that impact performance and emissions. Common problems include:

  • Soot buildup or incomplete regeneration leading to backpressure and warning lights.
  • Faulty pressure or temperature sensors preventing regeneration or causing false codes.
  • Excessive ash accumulation reducing filter capacity over time.
  • Leaks or contamination from oil, coolant, or additives affecting filtration efficiency.

With the latest Snap-on® diagnostic software and the Fast-Track® Troubleshooter workflow, you can diagnose the root cause based on the exact vehicle and code you are working on, then complete the repair with confidence.

Take a Deeper Dive into GPF Regeneration

WHAT'S HOT IN THE LATEST
SOFTWARE RELEASE.

BMW® 1-SERIES EB38A1:
PPF (GPF) REGENERATION.

This regeneration needs to be completed in the case of any of the following DTC’s:

  • 1A2818: Petrol Particulate Filter: Regeneration Interruption 
  • 1A280E: Petrol Particulate Filter: PPF Exhaust Gas Pressure Too High 
  • 1A280C: Petrol Particulate Filter: Output Limit Exhaust Gas Pressure is too high 
  • 34D909: Petrol Particulate Filter: High Soot Load Detected 

Operational Procedure – PPF (GPF) Regeneration, BMW 1-Series EB38A1

From the System Menu:

  • Select Engine (DME/DDE)
  • Select Functional Tests
  • Select Special Functions
  • Select Petrol Particulate Filter – Regeneration

Review Preconditions:

  • The system will display the conditions and any related DTCs that require this procedure.
  • To proceed, select Continue

Perform Regeneration:

  • Follow on-screen instructions to begin the driving regeneration.
  • The process may take up to 45 minutes to complete.

Completion:

  • On-screen instructions will confirm when regeneration has finished.

BMW® 1-SERIES EB38A1:
PPF (GPF) INITIALISATION.

If regeneration is unsuccessful, inspect the PPF (GPF) with a borescope to check for monolith damage. Replace the filter if required.

When PPF (GPF) replacement is necessary, complete the installation by running the exclusive Snap-on® Functional Test – Petrol Particulate Filter: Initial Operation. This essential step ensures the new filter is correctly programmed, and with the latest software release, it is quick and straightforward to perform.

Operational Procedure – PPF (GPF) Initialisation, BMW 1-Series EB38A1

From the System Menu:

  • Select Engine (DME/DDE)
  • Select Functional Tests
  • Select Special Functions
  • Select Petrol Particulate Filter – Initial Operation

Perform Initialisation:

  • Follow the on-screen instructions carefully.
  • Observe all safety notices and environmental guidance.
  • Select Continue to initiate the procedure.

Completion:

  • On-screen instructions will confirm when the initialisation procedure has finished.

MASTER PPF (GPF)
REGENERATION
WITH CONFIDENCE.

Gasoline Particulate Filters (GPF/OPF/PPF) are now standard on modern petrol vehicles, and understanding how they work is essential for accurate diagnosis and repair. When regeneration fails, it can lead to performance issues, warning lights, or costly component damage.

In this Technical Focus Article, we explore GPF regeneration with Snap-on® Diagnostic Software:

  • Understand GPF system design and operation
  • Recognise the most common GPF issues and DTCs
  • Apply a proven diagnostic workflow with your  Snap-on® diagnostic tool
  • See a real-world BMW 1-Series regeneration case study
Read the Full Technical Focus Article

Discover the Power Inside Your Diagnostic Platform

To cut through the complexity, Patented Fast-Track® Troubleshooting workflow and filtered information bring focus to the specific vehicle and code you’re working on, including:

  • SureTrack® Top Repairs Graph
  • Real Fixes
  • Technical Bulletins
  • Smart Data
  • Functional Tests and Resets
  • Complete Code Scan
  • Guided Component Tests
  • Service Resets and Relearns
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VEHICLE
COVERAGE
GUIDE.

Coverage is expanding with every upgrade

The latest software release gives your diagnostic tool new model year updates, guided tests, and thousands of SureTrack® Real Fixes and PID Flags.

Continuously updated cloud resources provide proven repairs, verified parts, and the industry’s broadest coverage.

With manufacturer-level capabilities, consistent navigation, and fast access to key specifications, Snap-on® keeps you ready to tackle even the toughest jobs.

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