Compare 34 brands — check fitment and order online
OE part number 101331 is a Mass Air Flow Sensor compatible with ALFA ROMEO, BMW and other makes. Available from 34 brands, priced from £28.99. Every cross-reference listed below matches the same OE specification used by the vehicle manufacturer.
Mass Air Flow Sensor OE 101331 prices range from £28.99 to £177.99, with 34 brands offering compatible parts.
Original installation position for OE 101331. The red ring marks where this part installs on the vehicle.

OEM workshop diagram — sourced from manufacturer parts catalogue.
OE 101331 is compatible with the following make/model combinations:
| Make | Models |
|---|---|
| BMW | 1 (E87), 3 (E90), 3 Touring (E91), 1 (E81) |
| CITROËN | C5 III Break (RW), C5 III (RD) |
| PEUGEOT | 407 (6D), 407 SW (6E, 6D), 508 I (8D), 508 SW I (8E) |
Choose a brand to see their compatible parts for OE 101331.
Products matched to OE number 101331.

| Attribute | Value |
|---|---|
| Housing length [mm] | 96 |
| Manufacturer | PORSCHE |
| Number of used contacts | 5 |
| Packaging height [cm] | 7 |
| Packaging length [cm] | 10,5 |
| Packaging width [cm] | 8,5 |
| Quality | OE EQUIVALENT |
| Voltage [V] | 5 |
| Number of pins (output) [-pin connector] | 5 |
| Supplementary Article/Supplementary Info | 30 |
Common original equipment numbers linked to stocked alternatives.
OE (Original Equipment) number 101331 is a manufacturer's reference code for Mass Air Flow Sensor used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 34 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE 101331.