On FCPEuro, there are 2 of them:
* BMW Mass Air Flow Sensor (335d X5) - Bosch 0281006147 - $190
* BMW Mass Air Flow Sensor (335d X5) - Genuine BMW 13628509725 - $26
What's the difference? I can't tell you.
More on that code from Rheingold/ISTA-D
Quote:
Fault description
The fault is recognised if the sensor signal of the intake air temperature exceeds a limit value.
Limit value: between 129.96 °C and 144.96 °C (version-dependent).
Condition for fault identification
Monitoring is only performed when no fault with the sensor supply voltage is set.
Control unit voltage: 9.5 V to 16 V.
Condition for fault memory entry
The fault is entered if it is present for longer than the following period (debounce time): 1000 ms
Action in service
1. Check line and plug connections
2. If wires and plug connections are OK:
Replace mass air flow sensor.
Fault effect and breakdown warning None
Driver information Malfunction indicator lamp
Service instruction
If the hot film air mass meter is replaced, the following service function must be carried out: Delete adaptations, air mass system.
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