2000 BMW 735 Knocking

2000 BMW 735
70,000 MILES • 6 CYL • 2WD • AUTOMATIC
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DWK0327
  • MEMBER
  • 1 POST
2000 BMW 728 imported from Sinagapore. Knocking happend on the upward road when not fully stepping on it. Can it be repaired if I change the spark plug with colder heat range ? Any thing recommendable ?
Jul 4, 2008 at 3:49 PM
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DOCHAGERTY
  • ✓Experienced Mechanic
  • 9,606 POSTS
If there is an issue with detonation, try filling the tank with high octane fuel. Changing to a cooler plug will have zero effect.
Jul 5, 2008 at 5:07 AM
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