GL Class (X166) 2013-2015 after facelift became GLS (X166)

M278 Fault P0341 - Camshaft Position Sensor Circuit Range/Perf

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Old Oct 11, 2022 | 11:19 PM
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Overpriced German Junk
M278 Fault P0341 - Camshaft Position Sensor Circuit Range/Perf

X166 GL450 w/ 120k miles. I got code P0341 via phone notification when I started my car yesterday.
The car was warming up for about 30 seconds when I noticed the message and immediately shut the car off.

Did I stretch my timing chain? How does one diagnose this issue between the camshaft position sensor and or the cam actuator(s)?

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Old Oct 12, 2022 | 12:37 PM
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Originally Posted by Sierra117
X166 GL450 w/ 120k miles. I got code P0341 via phone notification when I started my car yesterday.
The car was warming up for about 30 seconds when I noticed the message and immediately shut the car off.

Did I stretch my timing chain? How does one diagnose this issue between the camshaft position sensor and or the cam actuator(s)?

Check the cam position sensor and cam magnet harness connectors for oil. Check the ECU connector for oil. Lots written about this on the site.

Your engine may be affected by an oil pressure check valve campaign. Written about on this site.

Stretched chain, slipped cam sensor plate and bad tensioners would be next steps to check.
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Old Nov 1, 2022 | 08:31 AM
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Any updates on this?
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Old Nov 2, 2022 | 02:14 PM
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Just towed it to the shop today as I didn't want to risk anything. Will update in two weeks.
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Old Nov 14, 2022 | 04:23 PM
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Replacement of all 4 cam actuators + chains + engine service. Over 11k usd quoted.
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Old Nov 18, 2022 | 02:05 PM
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Originally Posted by Sierra117
Replacement of all 4 cam actuators + chains + engine service. Over 11k usd quoted.
did you ge tthe work done?
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Old Jan 29, 2023 | 07:21 PM
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No, not yet. We do not have enough information to make an adequate determination if that is a fair price for the work being performed. Especially when we purchased a set of 4x OEM adjusters online for $2500.
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Old Sep 14, 2023 | 11:17 AM
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Originally Posted by Sierra117
No, not yet. We do not have enough information to make an adequate determination if that is a fair price for the work being performed. Especially when we purchased a set of 4x OEM adjusters online for $2500.
Curious to see what the resolution was in this case
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