017 Crankshaft position sensor L5 - Mercedes-Benz Forum
 
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post #1 of 8 (permalink) Old 05-02-2010, 02:22 PM Thread Starter
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017 Crankshaft position sensor L5

Current fault: 017 Crankshaft position sensor L5. Still get this code, i have changed the sensor three times now,.... ??? Could it be a EZL fault ? Engine stall, hard to start, cold/warm. w 420 coupe.
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post #2 of 8 (permalink) Old 05-02-2010, 08:50 PM
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Have you checked wiring to the sensor? Might want to examine mounting of the sensor. It needs to have a close tolerance to the ring gear. Possibly check ring gear for issues.

Brett
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post #3 of 8 (permalink) Old 05-02-2010, 10:00 PM
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Originally Posted by Brett San Diego View Post
Have you checked wiring to the sensor? Might want to examine mounting of the sensor. It needs to have a close tolerance to the ring gear. Possibly check ring gear for issues.

Brett
Mr. Brett is right
I had the same error, and after i bought the sensor, the problem was with the wirings !

Can you give me Mr. Brett a picture or the scientefic name of a gear Ring to check it .
And thanks for everything



Gott sei Dank.
Ich habe eine wunderbare 1996 V-12 Mercedes-Benz S 600 L (W140).
Sie ist brillant-silber und schwarzem Leder von innen.

VIN ist WDB1400571A291571
Sales Bezeichnung S 600 L (1996)
Engine-Nr. 120982 12 000709
Transmission 722621 00 003522
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post #4 of 8 (permalink) Old 05-03-2010, 05:55 AM Thread Starter
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Sensor mounting and ring gear looks ok. Might be the EZL who is burning the crankshaft sensor ??? Dont know how much power EZL is sending to the Crankshaft sensor,.....
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post #5 of 8 (permalink) Old 05-03-2010, 09:40 AM
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Yeah, could be the EZL as well. I would think you'd want to rule out wiring before buying an EZL.

Brett
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post #6 of 8 (permalink) Old 05-03-2010, 09:47 AM
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Originally Posted by MBs600v121998 View Post
Can you give me Mr. Brett a picture or the scientefic name of a gear Ring to check it .
And thanks for everything
I don't have pictures. The ring gear is the big gear mounted to the engine output shaft that the starter engages to start the engine. The teeth on this gear are used by the crankshaft position sensor (CPS) to sense the rotation of the crankshaft. At one particular position, there are 2 teeth missing on the gear. These missing teeth mark top dead center for cylinder #1. The CPS senses the missing teeth, and the computer uses this information to time the engine spark properly.

Brett
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post #7 of 8 (permalink) Old 05-03-2010, 12:16 PM
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Originally Posted by Brett San Diego View Post
I don't have pictures. The ring gear is the big gear mounted to the engine output shaft that the starter engages to start the engine. The teeth on this gear are used by the crankshaft position sensor (CPS) to sense the rotation of the crankshaft. At one particular position, there are 2 teeth missing on the gear. These missing teeth mark top dead center for cylinder #1. The CPS senses the missing teeth, and the computer uses this information to time the engine spark properly.

Brett
Thank you Sir.



Gott sei Dank.
Ich habe eine wunderbare 1996 V-12 Mercedes-Benz S 600 L (W140).
Sie ist brillant-silber und schwarzem Leder von innen.

VIN ist WDB1400571A291571
Sales Bezeichnung S 600 L (1996)
Engine-Nr. 120982 12 000709
Transmission 722621 00 003522
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post #8 of 8 (permalink) Old 05-03-2010, 12:52 PM Thread Starter
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Wiring looks ok. The car has lived his life in the garage,..used only 4-5 times a year,..its a old car but it looks like a new. No damage-codes on the EZL, but maybe its broken anyway ??? Do a broken EZL always give a fault-code ?
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