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General E46 Forum
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Old 11-07-2016, 10:04 AM   #1
BullCityBimmer
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Join Date: Jul 2016
Location: Durham
Posts: 55
My Ride: 323i
VANOS Actuator Jammed

What's wrong:
This morning, the CEL made it's first appearance on my dash today after being in my possession now for 4 years. Took it directly to AutoZone to have the codes read and they are as follows:



-P1523 M52: "B" Camshaft Position Actuator Tight or Jammed-

-P0500 Vehicle Speed Sensor ?A? Malfunction-



Background:
The VANOS seals were replaced at 200k and have shown no issues up until now (214k); the rest of the assembly is OE.



Now what:
Threads suggested replacing the VANOS piston seals to fix the code but I should be able to rule that out. Others say replace the sensor exhaust/intake CPS but I believe there are different codes for low signal sensors. Should I try the sensors first or find a new solenoid?



Any advice is appreciated.

Last edited by BullCityBimmer; 11-09-2016 at 09:33 AM.
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Old 11-09-2016, 09:56 AM   #2
BullCityBimmer
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Join Date: Jul 2016
Location: Durham
Posts: 55
My Ride: 323i
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Old 11-09-2016, 12:06 PM   #3
ben99
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Join Date: Jan 2005
Location: Montreal
Posts: 278
My Ride: 323i
One thing I would check first is the spring loaded "piston" behind the vanos solenoid. http://forums.pelicanparts.com/bmw-3...28b8-code.html
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Old 02-04-2017, 09:23 PM   #4
DavidValentino
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Join Date: Jan 2015
Location: Cen Cal
Posts: 49
My Ride: 2000 328ci
Thanks for sharing that link ben!

Life saver!
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actuator, cps, p1523, solenoid, vanos

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