Air filter Ford Focus II HHDA (1.6 TDCi) — Mann, Mahle, Filtron
Air filter for Ford Focus II HHDA (1.6 TDCiL, 2004–2011) — dimensions, Mann, Mahle, Filtron, WIX and Hengst part numbers, and replacement interval.
Technical Specifications
| Parameter | Value |
|---|---|
| Make / Model | Ford Focus II |
| Engine Code | HHDA |
| Displacement / Fuel | 1.6 TDCiL diesel |
| Production Years | 2004–2011 |
| Filter size | 335×170×40 mm |
| Replacement interval | 15 000 km |
Compatible Air Filters
| Brand | Part Number |
|---|---|
| Mann-Filter | Mann C26011/2 |
| Mahle / Knecht | Mahle LX1596 |
| Filtron | Filtron AP131/1 |
| WIX Filters | WIX WA9549 |
| Hengst | Hengst E803L |
Replacement Interval
Replace the air filter every 15 000 km or once a year, whichever comes first.
In urban environments with high dust levels, replace more frequently — every 10,000–12,000 km.
Signs of a Clogged Air Filter
- Increased fuel consumption of 5–10%
- Reduced acceleration performance
- Black smoke from the exhaust (diesel engines)
- Fault code P0171/P0174 (lean mixture) on petrol engines
- Visibly dark, dirty filter element on inspection
FAQ
Which air filter fits Ford Focus II HHDA?
Mann Mann C26011/2, Mahle Mahle LX1596, Filtron Filtron AP131/1. Filter dimensions: 335×170×40 mm.
How often should the air filter be changed on Ford Focus II?
Every 15 000 km or annually. On unpaved or dusty roads, replace every 8,000–10,000 km.
Can the air filter be cleaned instead of replaced?
Disposable paper filters (Mann C26011/2, Mahle LX1596) are not washable. Washing destroys the filter medium and compromises filtration. Always fit a new filter.
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