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2003 C240 Fuel Pressure Sensor location

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Old 03-02-2019, 03:53 PM
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2003 C240 Fuel Pressure Sensor location

Can anyone tell me where the fuel pressure sensor is? I recently acquired a 2003 C240 and ordered a pressure sensor for P0446/P0451 codes and what I'm looking at on driver's side under rear seat doesn't match up.

Please help!

Thanks!!

This is the part I have
Old 11-08-2021, 04:33 AM
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Mercedes C240 W203, 2002 model
Fuel tanks pressure sensor

Originally Posted by w7412r
Can anyone tell me where the fuel pressure sensor is? I recently acquired a 2003 C240 and ordered a pressure sensor for P0446/P0451 codes and what I'm looking at on driver's side under rear seat doesn't match up.

Please help!

Thanks!!

This is the part I have
Pls were you able to locate the tank pressure sensor on Mercedes Benz C240 (w203), kindly explain to me, I have been having the code P0453 and I want to rectify it. Thanks
Old 11-08-2021, 11:50 AM
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On top of the fuel filter / sender unit under the left rear seat.
Attached Thumbnails 2003 C240 Fuel Pressure Sensor location-409839d1501792484-where-fuel-pressure-sensor-securedownload1_zps62dab0ef.jpg  
Old 11-08-2021, 02:42 PM
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Mercedes C240 W203, 2002 model
Originally Posted by tjts1
On top of the fuel filter / sender unit under the left rear seat.
Pls clarify me, is it on top the fuel filter or on top of the sender unit?
Old 11-08-2021, 03:01 PM
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Originally Posted by David275
Pls clarify me, is it on top the fuel filter or on top of the sender unit?
The fuel filter is built into the sender unit. the sending unit went through a redesign so make sure you have the correct sensor for your year. The best way to tell is to open it up and look.

Attached Thumbnails 2003 C240 Fuel Pressure Sensor location-409839d1501792484-where-fuel-pressure-sensor-securedownload1_zps62dab0ef.jpg  
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Old 11-08-2021, 03:11 PM
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Mercedes C240 W203, 2002 model
Originally Posted by tjts1
The fuel filter is built into the sender unit. the sending unit went through a redesign so make sure you have the correct sensor for your year. The best way to tell is to open it up and look.

Thanks I really appreciate

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