Dear car enthusiasts, today we will talk about the hardcore DPF regeneration of National VI diesel vehicles! If this thing gets angry, it can make your car go on strike in minutes.

1、 What exactly is DPF?

DPF is a "particulate matter catcher" that specifically intercepts carbon particles (PM2.5 to PM10) in engine exhaust.

Why is this thing standard on National VI cars? Because the emission standards are so strict that the sky is collapsing! In the past, National V vehicles were still picky about whether to install or not, but now National VI vehicles have all staff on duty, with a tight grip on environmental protection.

However, DPF also has a small problem - it is prone to clogging.

Just like the filter of your air purifier, if it's not cleaned for a long time, the wind won't blow.

When the DPF gets clogged, the car immediately shakes your face: there are three types of blockage states (mild, moderate, and severe) corresponding to three regeneration methods.

2、 Driving Regeneration: The Gospel of Buddhist Drivers

Trigger condition: Mild to moderate blockage, yellow light on dashboard.

Key points of operation: Open it as you please! The system will automatically increase the speed, causing the exhaust temperature to soar above 300 ℃ and burn the carbon particles into ash.

You don't have to do anything during the entire process, it can be called a 'lazy gospel'.

But be careful not to drive short distances frequently! The temperature is not enough, the regeneration may be interrupted, and it will be a waste of effort.

Comment: This function is like "automatic driving". It's really a relief, but motorists also need to have Dim sum - the exhaust pipe is hot enough to fry eggs when regenerating, stop as far away from dry grass and oil stains as possible, and be careful of "gas jumping"!

3、 Parking regeneration: the hardcore moment of manual operation

Trigger condition: The lights are still on after driving regeneration, or the red light jumps directly (a precursor to severe congestion).

Operation steps:

1. Site selection: Find an open area, away from gas stations and crowds (exhaust pipe temperature of 500 ℃+, not for fun);

2. Preparation: Neutral+handbrake+water temperature above 65 ℃ (advised to withdraw from cold driving);

3. Burning: Press the DPF regeneration button, the engine will run at 1500 rpm, and diesel fuel will be injected to assist combustion for 40-50 minutes;

4. End of work: If the indicator light goes out, immediately turn off the regeneration button (don't forget! Otherwise, the next time you start, it will continue to burn and fuel consumption will "drop and smoke").

4、 Service regeneration: Leave professional matters to professional people

Trigger condition: DPF completely blocked, regeneration function locked.

Operation points: Go straight to the service station! The master will remove the DPF and use high-temperature backwashing or ultrasonic cleaning to remove the dust.

Never use external software to force regeneration due to itching, otherwise the DPF will melt and the repair cost will make you feel like the sky is falling!

Horizontal comparison:

-Driving regeneration: free, but dependent on driving conditions;

-Parking regeneration: consumes fuel and time, tests patience;

-Service regeneration: cost saving and convenient, suitable for late stage lazy cancer.

5、 Controversial Topic: Is National VI Car Worth It or Not?

Some people say that the maintenance of National VI vehicles is expensive and the operation is tedious, but the high value retention, road rights, and environmental contributions make these three points worth the ticket price! The key is to develop maintenance habits - regularly cleaning dust, using urea well, and avoiding low-speed creeping.