Thread: Timing chain rattle on start up sometimes (new timing chains)
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Old 12-21-2023, 02:27 PM
X5chemist X5chemist is offline
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Join Date: Jun 2021
Location: Austin, TX
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Definitely agree. Mine is switch from 5-30 A3/B4 Castrol to 5-40 A3B4 Castrol for Texas heat. It's quite and runs smooth. I think it helped reduce slight start up smoke. Slight smoking on hard accelerations too. However, a new CCV may fixed it too.
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'06 X5 3.0i - bought @143,123 miles (12/26/20)
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