Change Car Particulate Filter (DPF) Mercedes-Benz A-Class

Change Car Particulate Filter (DPF)

Easy 0h30–6h00 ~50–600£
Estimated time 0h30–6h00
Estimated labour cost ~50–600£
Difficulty Easy
Vehicles
A-Class 1998-2005 4
  • 160 CDI Diesel (668.940)
  • 160 CDI Diesel (668.941)
  • 170 CDI Diesel (668.940)
  • 170 CDI, -L Diesel (668.942)
A-Class 2005-2012 3
  • 160 CDI Diesel (640.942)
  • 180 CDI Diesel (640.940)
  • 200 CDI Diesel (640.941)
A-Class 2012-2018 7
  • 160 CDI Diesel (607.951 (K9K))
  • 180 CDI Diesel (607.951 (K9K))
  • 180 CDI Diesel (651.901)
  • 200 CDI Diesel (651.901)
  • 200 CDI, -4MATIC Diesel (651.930)
  • 220 CDI, -4MATIC Diesel (651.930)
  • 220 D Diesel (651.930)
A-Class 2018-2025 5
  • 160d Diesel (608.915)
  • 180d Diesel (608.915 (K9K))
  • 180d Diesel (654.920)
  • 200d Diesel (654.920)
  • 220d Diesel (654.920)
Check the catalytic converter 0h30
Check the diesel particulate filter 1h00
Remove/refit the catalytic converter 1h30–5h00
Renew the catalytic converter 1h30–5h00
Remove/refit the diesel particulate filter 1h30–17h00
Renew the diesel particulate filter 1h30–17h00
Prepare the catalytic converter heat shield for installation* 0h45
Remove/refit the front catalytic converter with the exhaust pipe 2h00
Renew the front catalytic converter with the exhaust pipe 2h00
Remove/refit the diesel particulate filter/catalytic converter assembly 2h00–13h00
Renew the diesel particulate filter/catalytic converter assembly 2h00–13h00
Renew the diesel particulate filter fuel additive reservoir 1h30
Remove/refit the diesel particulate filter fuel additive reservoir 1h30
Remove/refit the diesel particulate filter fuel additive injector 1h30
Renew the diesel particulate filter fuel additive injector 1h30
Remove/refit the AdBlue tank control unit 0h30
Remove/refit the AdBlue tank 3h00–3h30
Drain/refill the AdBlue tank 1h30
Renew the AdBlue tank control unit 0h30
Renew the AdBlue tank 3h00–3h30
Remove/refit the AdBlue injector 1h30
Renew the AdBlue injector 1h30
Remove/refit the diesel particulate filter With LED headlights, With additional heater 20h00
Remove/refit the diesel particulate filter Without LED headlights, With additional heater 19h00
Remove/refit the diesel particulate filter With LED headlights, Without additional heater 20h00
Remove/refit the diesel particulate filter Without LED headlights, Without additional heater 19h00
Renew the diesel particulate filter Without LED headlights, With additional heater 20h00
Renew the diesel particulate filter With LED headlights, With additional heater 20h00
Renew the diesel particulate filter Without LED headlights, Without additional heater 20h00
Renew the diesel particulate filter With LED headlights, Without additional heater 20h00
Remove/refit the catalytic converter Hatchback 3h00
Renew the catalytic converter Hatchback 3h00
Remove/refit the AdBlue tank Hatchback 3h00
Renew the AdBlue tank Hatchback 3h00

What is a Mercedes-Benz A-Class 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 Mercedes-Benz A-Class 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 Mercedes-Benz A-Class 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 Mercedes-Benz A-Class 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 Mercedes-Benz A-Class 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.

View all compatible products →
View your A-Class maintenance plan (keep the A-Class token) →

4 models covered

Model Year Range Engines covered Fuel
A-Class 1998-2005 1998-2005 140, -L, -LPG LPG,Petrol (166.940), 140, -L, -LPG LPG,Petrol (166.960), 160 CDI Diesel (668.940), 160 CDI Diesel (668.941), 160, -L, -LPG LPG,Petrol (166.960), 170 CDI Diesel (668.940), 170 CDI, -L Diesel (668.942), 190, -L, -LPG LPG,Petrol (166.990), 210 Evolution, -L, LPG LPG,… Diesel, LPG, Petrol
A-Class 2005-2012 2005-2012 150, -LPG LPG,Petrol (266.920), 160 CDI Diesel (640.942), 170, -LPG LPG,Petrol (266.940), 180 BlueEFF, -LPG LPG,Petrol (266.940), 180 CDI Diesel (640.940), 200 CDI Diesel (640.941), 200 Turbo Petrol (266.980), 200, -LPG LPG,Petrol (266.960) Diesel, LPG, Petrol
A-Class 2012-2018 2012-2018 160 CDI Diesel (607.951 (K9K)), 160 Petrol (270.910), 180 CDI Diesel (607.951 (K9K)), 180 CDI Diesel (651.901), 180 Petrol (270.910), 200 CDI Diesel (651.901), 200 CDI, -4MATIC Diesel (651.930), 200 Petrol (270.910), 220 4MATIC Petrol (270.920), 220 CDI, -4MATIC Diesel (651.930)… Diesel, Petrol
A-Class 2018-2025 2018-2025 160 Petrol (282.914), 160d Diesel (608.915), 180 48V (MHEV),Petrol (282.814), 180 Petrol (282.914), 180d Diesel (608.915 (K9K)), 180d Diesel (654.920), 200 48V (MHEV),Petrol (282.814), 200, -4MATIC Petrol (282.914), 200, -4MATIC Petrol (282.914), 200d Diesel (654.920), 220, -4MA… 48V (MHEV), Diesel, Electricity, Petrol

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