What Are The Signs Of A Blocked DPF?

Can a blocked DPF damage the engine?

Driving the vehicle with a blocked DPF can seriously damage your engine / turbo and it’s not uncommon to have to replace a turbo when the warning light has been ignored for extended periods.

The ash residue which remains after successful regeneration cannot be removed and will eventually fill the filter..

Why is my DPF not regenerating?

The DPF will not regenerate if: The engine management light is on for any fault; There is a faulty EGR valve; There is less than 20 litres of fuel in the fuel tank, if the fuel light is on or the engine management light is illuminated.

How do you clear a blocked DPF filter?

Warm up the engine to operating temperature, then drive it for 15 minutes at constant speed on a motorway. Aim to keep the revs above 2000rpm for this period. The heat generated will help clean the DPF filter and the cars Regeneration cycle will usually kick in under these circumstances.

How do you manually regenerate a DPF?

To kick off a manual DPF regeneration you shouldPut the vehicle in neutral.Put on the hand brake.Leave the pedals alone!Press and hold the DPF button for 2 seconds or longer.

How much does it cost to replace DPF filter?

Replacing a DPF can easily cost $4000 to $8000, and sometimes more, it’s a big cost… particularly when a vehicle is out of warranty!

How far do you need to drive to clean DPF?

To make sure that the regeneration takes place, most manufacturers suggest that every few hundred miles, the car is driven for a period of more than 15 minutes at a consistent speed in excess of 40mph. Doing this should clear the filter.

How do you tell if your DPF is clogged?

What Are The Signs Of A Blocked DPF?You feel a loss of power in your engine (limp mode).The DPF light will appear on your dashboard.Passive and active regeneration keep failing.A pungent smell of diesel.Automatic Stop-Start System Not Working.Your car seems to be releasing an excessive amount of smoke.More items…

How long does it take for a DPF to block?

It is much more normal for DPFs take 10k miles to become blocked. However, this only happens if the owner NEVER takes their car for a run. Once a week, once a fortnight, or even once a month, a 30–60 minute run at a constant 3–4k RPM will ensure it doesn’t get blocked.

Can I clean a DPF myself?

Don’t DPFs clean themselves? In theory, yes. “Passive Regeneration” or if appropriate Active DPF regeneration will take place as part of a healthy diesel engine running cycle, but active regeneration can fail once a blockage reaches a certain level. Sometimes a “forced” regeneration may be carried out by a mechanic.