Change Car Particulate Filter (DPF) Honda Accord

Change Car Particulate Filter (DPF)

Easy 0h30 ~50£
Estimated time 0h30
Estimated labour cost ~50£
Difficulty Easy
Vehicles
Accord VII 2003-2008 1
  • 2.2 16V i-CTDi Diesel (N22A1)
Accord VIII 2008-2015 2
  • 2.2 i-DTEC 16V Diesel (N22B1)
  • Type S (2.2 i-DTEC 16V) Diesel (N22B2)
Check the catalytic converter 0h30
Remove/refit the pre-catalytic converter 1h30
Renew the pre-catalytic converter 1h30
Remove/refit the catalytic converter 0h45–1h30
Renew the catalytic converter 0h45–1h30
Renew the catalytic converter gasket 0h45
Remove/refit the diesel particulate filter 1h30
Renew the diesel particulate filter 1h30
Prepare the catalytic converter heat shield for installation* 0h45
Remove/refit the diesel particulate filter/catalytic converter assembly 1h30
Renew the diesel particulate filter/catalytic converter assembly 1h30

What is a Honda Accord particulate filter?

Diesel engines and direct-injection petrol engines produce soot particles. The particulate filter (DPF/GPF) traps these harmful particles as exhaust gases pass through its honeycomb structure. It is placed on the exhaust line after the catalytic converter.

How does the Honda Accord particulate filter work?

As soot accumulates, the filter periodically burns off (regenerates) the trapped particles. Active regeneration raises exhaust temperatures to 550–600°C, burning soot to ash. This occurs every 300–500 km during normal motorway driving. Vehicles driven only on short urban trips may not regenerate properly, leading to blockage.

When should you change the Honda Accord particulate filter?

The DPF is designed to last 150,000–250,000 km but depends on driving patterns. Signs of needed replacement: DPF warning light, engine in limp mode, excessive exhaust smoke, or diagnostic scan showing excessive back-pressure or failed regeneration cycles.

Can the Honda Accord particulate filter be cleaned instead of replaced?

Yes, professional DPF cleaning can restore a blocked filter at a fraction of replacement cost. However, if the filter substrate is cracked, melted, or structurally damaged, replacement is the only option. Never use a DPF removal/delete service — it is illegal and will fail the MOT/emissions test.

Is it difficult to change the Honda Accord particulate filter?

Difficulty level 2/5: technically straightforward but physically demanding due to the filter's location and weight. Key steps: raise the vehicle, disconnect pressure sensors, remove exhaust clamps/bolts, lower the old DPF, fit the new one with new gaskets, reconnect sensors, clear fault codes, perform a forced regeneration cycle.

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5 models covered

Model Year Range Engines covered Fuel
Accord III 1985-1993 1985-1993 1.6 12V Petrol (A16A1), 2.0 12V Petrol (A20A1), 2.0 12V Petrol (A20A3) Petrol
Accord IV 1989-1993 1989-1993 2.2i 16V Petrol (F22A7) Petrol
Accord VI 1997-2003 1997-2003 2.0 16V Petrol (F20B5), 2.0 16V Petrol (F20B6), 2.2 16V Petrol (F23A1), 3.0 24V V6 Petrol (J30A1) Petrol
Accord VII 2003-2008 2003-2008 2.0 16V Petrol (K20A6), 2.0 16V Petrol (K20Z2), 2.2 16V i-CTDi Diesel (N22A1), 2.4 16V Petrol (K24A1), 2.4 16V Petrol (K24A3) Diesel, Petrol
Accord VIII 2008-2015 2008-2015 2.0 i-VTEC 16V Petrol (R20A3), 2.2 i-DTEC 16V Diesel (N22B1), 2.4 i-VTEC 16V Petrol (K24Z3), Type S (2.2 i-DTEC 16V) Diesel (N22B2) Diesel, Petrol

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