# Mini Cooper clicking and clacking

**URL:** <https://community.cartalk.com/t/mini-cooper-clicking-and-clacking/79917>\
**Category:** Maintenance/Repairs\
**Tags:** mini, coopers\
**Created:** [June 18, 2013, 4:46am UTC](https://community.cartalk.com/t/mini-cooper-clicking-and-clacking/79917 "2013-06-18T04:46:14Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Glory](https://avatars.discourse-cdn.com/v4/letter/g/7cd45c/32.png) [@Glory](https://community.cartalk.com/u/Glory)\
**Post date:** [June 18, 2013, 4:46am UTC](https://community.cartalk.com/t/mini-cooper-clicking-and-clacking/79917/1 "2013-06-18T04:46:14Z")

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My 2007 mini cooper with low milage (40,000) began making clacking noizes, then backfiring, then loosing power. Had intake valves cleaned with walnut shells a few months ago at graet expense and just started to click and clack again. Suggestions? Has anyone else had this problem. Put in feul injection cleaner and has stopped for now.

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**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\
**Post date:** [June 18, 2013, 5:16am UTC](https://community.cartalk.com/t/mini-cooper-clicking-and-clacking/79917/2 "2013-06-18T05:16:57Z")

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@Glory

Are you using premium fuel?

AFAIK, most european cars require it.

Are you using cheap fuel?

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**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\
**Post date:** [June 18, 2013, 5:23am UTC](https://community.cartalk.com/t/mini-cooper-clicking-and-clacking/79917/3 "2013-06-18T05:23:08Z")

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Have you checked the oil level recently?

Ed B.

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**Author:** ![BustedKnuckles](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bustedknuckles/32/25_2.png) [@BustedKnuckles](https://community.cartalk.com/u/BustedKnuckles)\
**Post date:** [June 18, 2013, 5:57am UTC](https://community.cartalk.com/t/mini-cooper-clicking-and-clacking/79917/4 "2013-06-18T05:57:44Z")

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Using less than the minimum grade fuel will contribute to carbon build-up that causes pre-ignition and knocking. IIRC, the Mini Cooper requires premium fuel. Using regular or mid-grade is probably the cause.