Question about Mercedes-Benz C-Class
On the 2001 C320 the sensor is located on on the bell housing (between transmission and engine area) on the driver side. The sensor is buried below several breather,vacuum, and coolant lines. It was very difficult to see without removing the air filter/intake components.Use a mirror and good light. It is somewhat difficult to reach so you'll need the right tools.
Replacement: You will need anE8 socket and a flexible extension. Try touse a deep socketsince a short one would interfere radially with the sensor body/tower and would not efully ngage the bolt head holding the sensor leading to possibly stripping the bolt (which I did). You may use a metric 6.5 mm socket but be very careful not to strip the bolt. No calibration or alignment of the sensor is needed.If you strip the bolt, replace it with a high grade 6mm - 1 pitch metric bolt(possibly allen head). You'll find these at most of your local hardware stores. Make sure to use a high grade (high hardness) bolt.Torque the boltto about10 Nm.about 7 ft-lb. Do not over torque.
Price: Most websites listed the sensor for about $80.My local MB dealer had a sensor in stock for $26(don't ask me how?). The dealer informed me that it charges 2 hours of labor for replacement (about $200 for labor) not including any diagnostics or parts.I ended up buying the sensor for $26.xx + Tax and replacing it myself. The bolt from my local hardware store was $0.5. A new bolt from the dealership lists for $6.50 but they did not have one available.
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Posted on Sep 14, 2010
May I ask what you can not find on the car. If you have lost it I would call the police and report it stolen.
Or can you please explain the problem more so I can help you.
Please accept the answer and rate 4 thumbs up for it so I can help you more.
Posted on Sep 13, 2010
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Posted on Jan 02, 2017
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