Mercedes GLA X156 (2014-2020)-Class Diesel Particulate Filter DPF

The Diesel Particulate Filter (DPF) in the Mercedes GLA X156 (2013-2019) diesel models, such as the GLA 180 CDI with the OM 607.951 engine, is a crucial exhaust system component. It captures harmful fine particulate matter (soot) in diesel exhaust gases using a porous filter wall integrated with a catalytic converter. This reduces carcinogenic emissions by trapping and burning soot particles from incomplete combustion, thereby lowering pollution.

The DPF system operates by filtering exhaust gases after the turbocharger. A catalytic converter integrated within the DPF traps solid particles (soot). Sensors monitor differential pressure, temperature, and other parameters to assess the filter's condition.

• Passive regeneration: During long highway drives, high exhaust temperatures naturally burn off the soot.
• Active regeneration: The engine injects extra fuel to increase temperatures over 600°C to incinerate soot and prevent filter saturation.

This process maintains normal backpressure (around 0 bar when clean) ensuring engine efficiency.

Common issues with the DPF include:

• Clogging caused by soot buildup, which activates engine warning lights with codes such as P2463.
• Loss of engine power and increased backpressure indicating filter saturation.
• Sensor faults involving differential pressure or post-DPF sensors.

Soot content exceeding 10 grams often indicates the need for maintenance or cleaning.

Non-removal cleaning is possible by injecting a specialized DPF cleaner through the differential pressure sensor hose after removing its nut and cable clip.

• After injection, perform a regeneration drive of 20–30 minutes at 2000–3000 rpm or use a diagnostic tool to force regeneration.
• This cleaning can reduce soot levels dramatically, returning the filter to near-new condition.

This method is effective on similar Mercedes diesel engines, including OM 607 and OM 651 series.

Replacement is needed when cleaning cannot restore proper function or if the filter is damaged or irreversibly clogged.

• New high-quality DPF units for Mercedes GLA 180 CDI X156 are available meeting strict manufacturer specifications.
• Replacement tutorials including video and PDF guides are available for proper mounting on the X156 chassis.

Always replace associated components such as sensors and catalytic converters as per manufacturer recommendations during replacement.

Prevention focuses on proper driving and maintenance habits to ensure effective soot burn-off and filter operation:

• Regularly drive your vehicle at higher engine speeds on the highway to enable passive regeneration.
• Avoid frequent short urban trips where the engine and exhaust system do not reach optimal temperatures.
• Maintain scheduled servicing and replace sensors and injectors on time.

Following these practices extends DPF life and keeps exhaust emissions compliant.

If your Mercedes GLA shows a DPF error code such as P2463 but the filter is clean, consider these steps:

• Check the differential pressure sensor and related wiring for faults or contamination, as sensor failure can trigger false error codes.
• Verify that regeneration cycles are completing successfully and the catalytic converter is functioning properly.
• Use a diagnostic tool to clear codes after sensor replacement or cleaning and monitor performance.

If issues persist, consult a specialist garage or authorized technician for accurate diagnosis.

High-quality new DPFs and catalytic converters for the Mercedes GLA X156 are manufactured in Europe with top-grade materials and technology. These parts come with a 3-year warranty and comply with the latest emission regulations.

• They are constructed from INOX 409 stainless steel and feature advanced ceramic monoliths with thin-layer coatings for durability and performance.
• Technical support, installation guides, and direct-from-factory prices ensure excellent value.
• Free returns within 30 days for unused items and fast delivery across Europe.

Choosing these parts helps maintain your car’s exhaust system efficiency and protects the environment.