W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Check engine light - OBD Scanner shows P105--- help ?

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Old Jul 23, 2010 | 04:56 PM
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Bellevue_E55's Avatar
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2006 Mercedes E55
Check engine light - OBD Scanner shows P105--- help ?

Light went off on its own but the stored code is P105.

Manifold Absolute Pressure Barometric Pressure Circuit Malfunction.

Any help appreciated.

Thanks!
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Old Jul 23, 2010 | 05:18 PM
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here is the location of the pressure sensor...



that's probably the culprit.

Last edited by O-55; Jul 23, 2010 at 09:27 PM.
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Old Jul 23, 2010 | 05:26 PM
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thanks man.... Did you replace yours ? Know how much it cost ?
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Old Jul 23, 2010 | 05:44 PM
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havent had to replace mine yet (knock on wood). can't imagine the part being more than $100, but i've been wrong before. i'll try and locate a part number for you.
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Old Jul 23, 2010 | 06:46 PM
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2003 W211 E55, 2003 W220 S600
MAP sensor. the s/c has to come off the replace it. has anyone replaced one without removing the s/c
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Old Jul 23, 2010 | 09:27 PM
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here you go...

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Old Jul 24, 2010 | 09:21 AM
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Took me all weekend and bloody knuckles but I did it without sc pull. 100 percent impossible without a special tool. I bought a 1/4" drive set of esockets with the swivel joint built into them. With swivel put onto the end of the socket like normal, it was too long and she just wouldn't work. Even with that tool, I ran out of swear words to call it after the first few hours.
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Old Jul 24, 2010 | 09:49 AM
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Whatever we're tuning!
Remove right side surge tank and the bolt holding the dipstick bracket and you can get to it.

Like Jim said it can be done without removing the kompressor but you will get some nicks and cuts doing it this way...................


unless you have girly hands and are a contortionist !

Go for it!
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Old Jul 24, 2010 | 12:55 PM
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I'm a wimp...... going to see if the code comes up again and if so I will be using my warranty.
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Old Jul 24, 2010 | 01:07 PM
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No wimpiness at all. My tech is a master mechanic and even he hates it. Let the stealer worry about it if you have warranty.
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