# 2012 Mercedes-Benz M-Class power loss

**URL:** <https://community.cartalk.com/t/2012-mercedes-benz-m-class-power-loss/143523>\
**Category:** Maintenance/Repairs\
**Tags:** m-class, mercedes-benz\
**Created:** [July 2, 2019, 8:47pm UTC](https://community.cartalk.com/t/2012-mercedes-benz-m-class-power-loss/143523 "2019-07-02T20:47:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![GeraldSBoler](https://avatars.discourse-cdn.com/v4/letter/g/47e85d/32.png) [@GeraldSBoler](https://community.cartalk.com/u/GeraldSBoler)\
**Post date:** [July 2, 2019, 8:47pm UTC](https://community.cartalk.com/t/2012-mercedes-benz-m-class-power-loss/143523/1 "2019-07-02T20:47:19Z")

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It looses power when drive for more than a couple hours, its like it goes limp and I have to pull over and turn the engine off for about 5 min. then it will be fine for a while again.

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [July 2, 2019, 9:15pm UTC](https://community.cartalk.com/t/2012-mercedes-benz-m-class-power-loss/143523/2 "2019-07-02T21:15:45Z")

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How long has the check engine light been on? How many miles on this?