Mazda 13B-MSP Technické informace stáhnout pdf (Strana 122)

Engines Powertrain

Diesel Particulate Filter System

• The Mazda3 with Y6 high-power engine features a DPF with a honeycomb structure,

which must be regenerated at certain intervals. In order to facilitate the regeneration

process, the Mazda3 uses a special fuel additive that is automatically injected into the

fuel tank. During the combustion process the additive attaches itself to the soot

particulates, which then accumulate in the filter. As a result, the temperature to burn off

the particulates is lowered.

L1001.4_01145

1 Fuel additive 2 Soot

• Pressure and temperature sensors in the DPF detect when the soot accumulation

capacity of the filter is reached. The engine control system then increases the exhaust

gas temperature by multiple fuel injections to burn off the particulates.

• After regeneration ash residues that have formed from the fuel additive and the engine

oil remain in the DPF, clogging the filter pores. For this reason, the DPF must be

replaced every 120,000 km.

• In addition, the fuel additive tank must be refilled every 60,000 km.

01-112 Curriculum Training

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Mazda 13B-MSP Technické informace Strana 122