M-Class (W166) Produced 2012-2015

W166 engine stop once break

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Old Feb 7, 2022 | 12:46 PM
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ML250 W166
W166 engine stop once break

My ML250 W166 engine will turn off sometime in low speed or break at gear position N or D but the engine lamp not show and after change gear position to P the engine can start again without any code alarm messages. The local workshop test with replace new sensor L5 but issues still remain. Please kindly advise
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Old Feb 7, 2022 | 12:59 PM
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Welcome! Please post a photo of the GLE.

Have you replaced the battery?
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Old Feb 8, 2022 | 02:35 AM
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moved to W166 forum...
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Old Feb 13, 2022 | 06:49 AM
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I had a car that did that years ago. Low speed in the driveway or parking lot sometimes it would stall for no reason. It was an intermittently faulty crank position sensor. Might be something to check on yours.
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Old Mar 5, 2022 | 07:37 PM
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ML250 W166
Originally Posted by chassis
Welcome! Please post a photo of the GLE.

Have you replaced the battery?
Yes, already replaced new but the problem still reman.
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Old Mar 5, 2022 | 07:39 PM
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ML250 W166
Originally Posted by chassis
Welcome! Please post a photo of the GLE.

Have you replaced the battery?

Yes, already replaced new one but problem still remain




Last edited by Tey; Mar 5, 2022 at 07:42 PM.
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Old Mar 5, 2022 | 07:43 PM
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ML250 W166
Originally Posted by Doubleredrolex
I had a car that did that years ago. Low speed in the driveway or parking lot sometimes it would stall for no reason. It was an intermittently faulty crank position sensor. Might be something to check on yours.

Thank you very much I’ll check on that
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Old Mar 13, 2022 | 03:57 AM
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ML250 W166
Originally Posted by Tey
Thank you very much I’ll check on that

Replace both crankshaft and camshaft sensor but the the engine still stop once slow speed without any engine lamp ala
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Old Mar 13, 2022 | 09:25 AM
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What codes have you read?

What led you to replace the sensors?

What modifications are on this vehicle?

Have you replaced the auxiliary battery in the rear cargo area?
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Old Mar 13, 2022 | 11:05 AM
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ML250 W166
The engine lamp not show and not have any alarm just engine stop and can start again.
Already replaced auxiliary battery, crankshaft sensor and camshaft sensor.
But the problem of engine stop once break at the slow RPM still remains.
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Old Mar 13, 2022 | 11:44 AM
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Read codes, there may be stored codes that don't turn the CEL on.

What modifications are on this vehicle? Nice color.
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