R50/R53 :: Hatch Talk (2002-2006) Cooper (R50) and Cooper S (R53) hatchback discussion.

R50/53 Service mode bolts are same thread as R53 trunk battery bolt

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Old Jul 5, 2025 | 07:06 AM
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xman11
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Service mode bolts are same thread as R53 trunk battery bolt

For those of you putting your car in service mode, the long service bolts are 8mm x 1.25 x 90 mm (3.5") long.
I found out this week that the long bolt that holds down the trunk battery is the same thread/pitch. It's also a bit longer and came in handy when changing the alternator.


 
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Old Jul 5, 2025 | 07:37 PM
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No - somewhere the spec is mentioned - battery hold down is smaller in diameter
 
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Old Jul 6, 2025 | 09:56 AM
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The body is thinner and longer. Thread/pitch is the same.
 
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Old Jul 15, 2025 | 10:53 AM
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Yep, the old ones factory are nla. But we have alts. That one you found is even longer.

https://www.northamericanmotoring.co...ensions-2.html

 
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