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EGR sensor circuit low.. I need help

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Old Jun 2, 2022 | 01:45 PM
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350 cdi
EGR sensor circuit low.. I need help
Hi all Mercedes pros!

Would like to know where to start looking for an EGR sensor and what an EGR sensor looks like on a Mercedes w212 350 bluetec v6 engine.

Would be very grateful for help ..




I have code P0405, 149A00 14A100
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Old Jun 2, 2022 | 04:33 PM
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'71 Pinto
149A00 P0405 Component 'Y27/9 (Left EGR positioner)' has an internal fault.

EGR valve may need cleaning or replacement – part # 6421401960 or MB direct 642140196064 need VIN to confirm.





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Old Jun 2, 2022 | 04:42 PM
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The EGR valve is new, it was the first one I changed but the codes are still ...

Do you have any more ideas? 🙏🙏
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Old Jun 2, 2022 | 05:00 PM
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Were all stored codes cleared after install and harness inspected.
Last edited by konigstiger; Jun 2, 2022 at 05:04 PM.
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Old Jun 2, 2022 | 05:05 PM
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Yes many Times 😒
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Old Jun 2, 2022 | 05:10 PM
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May be time to recruit an independent with Xentry (MB diagnostics).
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Old Jun 2, 2022 | 05:13 PM
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Old Jun 2, 2022 | 05:17 PM
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The cables are complete between the EGR valve and the cu..
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