Forced Regenerations

When your vehicle displays second stage DPF warning lights it will go in to ‘limp mode’ and should be taken to your garage or dealer to ascertain the extent of the problem. A forced regeneration involves the garage using a computer program to run the car, initiating a regeneration of the DPF. This will also require changing the engine oil & oil filter.

Passive regeneration

Some manufacturers use Passive Regeneration. For these vehicles passive regeneration generally takes place on the motorway where exhaust temperatures are higher. This  type of system can have an integrated oxidising catalytic converter located  close to the engine where exhaust gases are hot enough so that passive regeneration is possible. Passive regeneration,  relies on the exhaust…

Active regeneration

The active system works off  a filter load limit or sensors reading exhaust backpressure or the ‘soot load’ of the filter, activating timing adjustments to the fuel injection which in turn increases the exhaust temperature, initiating the burning of the soot and regenerating or clearing the filter. Depending on the vehicle brand, This type of…