Air filter SEAT Leon III DFHA (2.0) — Mann, Mahle, Filtron
Air filter for SEAT Leon III DFHA (2.0L, 2017–2020) — dimensions, Mann, Mahle, Filtron, WIX and Hengst part numbers, and replacement interval.
Technical Specifications
| Parameter | Value |
|---|---|
| Make / Model | SEAT Leon III |
| Engine Code | DFHA |
| Displacement / Fuel | 2.0L diesel |
| Production Years | 2017–2020 |
| Filter size | 337×203×38 mm |
| Replacement interval | 20 000 km |
Compatible Air Filters
| Brand | Part Number |
|---|---|
| Mann-Filter | C 24 040 |
| Mahle / Knecht | LX 3465 |
| Filtron | AP 193 |
| WIX Filters | WA9893 |
| Hengst | E501L |
Replacement Interval
Replace the air filter every 20 000 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 SEAT Leon III DFHA?
Mann C 24 040, Mahle LX 3465, Filtron AP 193. Filter dimensions: 337×203×38 mm.
How often should the air filter be changed on SEAT Leon III?
Every 20 000 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 (C 24 040, LX 3465) are not washable. Washing destroys the filter medium and compromises filtration. Always fit a new filter.
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