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Number of Connections: 5
Measuring Type: Hot Film
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An air mass sensor keeps track of the amount of air coming in through the air filter, so that the ECU can adjust the amount of fuel getting into the engine. The flap is connected to the potentiometer which then sends a signal to the ECU.
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Perfectly functioning air mass sensors are essential for fuel injected engines to run efficiently and reliably
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The symptoms of a faulty or failing mass air flow sensor are:
Low engine power
Poor fuel economy
Engine is very hard to start or turn over
Stalling shortly after starting
Engine hesitates or drags while under load or at idle
Fits Mercedes: .
| Model | Type | Engine | Year |
| C Series | 55 AMG | 5.4 | 2000-2008 |
| CL | 500, 600, 55 AMG | 5.0, 5.4, 5.8 | 1999-2006 |
| CLK | 430, 500, 55 AMG | 4.3, 5.0, 5.4 | 1997-2010 |
| CLS | 500 | 5.0 | 2004-2012 |
| E Series | 430, 500, 55 AMG | 4.3, 5.0, 5.4 | 1995-2011 |
| G Series | 500, 55 AMG | 5.0, 5.4 | 1989 on |
| ML | 430, 500, 55 AMG | 4.3, 5.0, 5.4 | 1998-2012 |
| R Series | 500 | 5.0 | 2005-2017 |
| S Series | 430, 500, 600, 55 AMG | 4.3, 5.0, 5.4, 5.8 | 1998-2006 |
| SL | 500 | 5.0 | 1999-2012 |
OEM Reference Numbers:
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Mercedes
1130940048
A1130940048
113 094 00 48
A 113 094 00 48
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Bosch 0280217810
Febi Bilstein 28338
Swag 10928338, 10 92 8338
Topran 401627, 401 627
Valeo 253739
Vemo V30720008, V30-72-0008
Wilmink Group WG1054271