Change Car Particulate Filter (DPF) BMW 3-Series GT
Change Car Particulate Filter (DPF)
| Estimated time | 0h30–1h30 |
|---|---|
| Estimated labour cost | ~50–150£ |
| Difficulty | Easy |
| Vehicles |
3-Series GT 2013-2021 12
|
| Remove/refit the catalytic converter | 1h00–1h30 |
| Renew the catalytic converter | 1h00–1h30 |
| Remove/refit the diesel particulate filter | 2h30–6h00 |
| Remove/refit the diesel particulate filter fuel additive injector | 0h45 |
| Remove/refit the petrol particulate filter | 3h00–6h00 |
| Renew the petrol particulate filter | 3h00–6h00 |
| Renew the diesel particulate filter | 2h30–6h00 |
| Renew the diesel particulate filter fuel additive injector | 0h45 |
| Remove/refit the petrol particulate filter differential pressure sensor | 0h30–1h00 |
| Renew the petrol particulate filter differential pressure sensor | 0h30–1h00 |
| Prepare the catalytic converter heat shield for installation* | 0h45 |
| Remove/refit the AdBlue injector | 0h45 |
| Renew the AdBlue injector | 0h45 |
| Check the catalytic converter | 0h30 |
| Remove/refit the petrol particulate filter temperature sensor | 0h45–1h00 |
| Renew the petrol particulate filter temperature sensor | 0h45–1h00 |
| Remove/refit the diesel particulate filter/catalytic converter assembly | 3h00 |
| Renew the diesel particulate filter/catalytic converter assembly | 3h00 |
What is a BMW 3-Series GT 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 BMW 3-Series GT 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 BMW 3-Series GT 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 BMW 3-Series GT 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 BMW 3-Series GT 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.
