Engine noise at cold start, and driving at lower RPMS

brandobot · 08-13-2010, 03:28 PM

At cold starts, I get a lot of chattering like something is loose. The noise goes away once it warms up. It sounds like it's coming from the oil filter housing or somewhere in that vicinity. From a complete stop, it'll make the noise when I start to get it rolling and will usually go away as soon as it starts rolling. If i'm in low RPMs in second gear and I step on the gas a little, you can also hear it.

The car was perfectly fine until I changed the oil, oil filter, differentail fluid, and transmission fluid. The air filter was also replaced but I switched it back to stock and the noise is still there.

Z4-VILLA · 08-13-2010, 04:34 PM

http://www.drvanos.com/

brandobot · 08-13-2010, 04:55 PM

Does the vanos only make noises on lower rpms or throughout the whole power band?

Z4-VILLA · 08-13-2010, 06:17 PM

usually low rpm.....mileage?

brandobot · 08-13-2010, 07:01 PM

60k miles. It happens at cold start for about 20 seconds, then disappears. If i'm in second gear at 1000 rpm, and i step on the gas, I can hear it for about 1-2 seconds very quietly. After that, it's completely gone.

brandobot · 08-13-2010, 08:41 PM

Z4-VILLA · 08-14-2010, 02:53 AM

thats a vanos issue also get new pulleys, = fixed.

08-13-2010, 03:28 PM	#1
brandobot Second Lieutenant 41 Rep 291 Posts Drives: 06 Z4M Join Date: Jul 2010 Location: Bay Area Ca iTrader: (3)	Engine noise at cold start, and driving at lower RPMS At cold starts, I get a lot of chattering like something is loose. The noise goes away once it warms up. It sounds like it's coming from the oil filter housing or somewhere in that vicinity. From a complete stop, it'll make the noise when I start to get it rolling and will usually go away as soon as it starts rolling. If i'm in low RPMs in second gear and I step on the gas a little, you can also hear it. The car was perfectly fine until I changed the oil, oil filter, differentail fluid, and transmission fluid. The air filter was also replaced but I switched it back to stock and the noise is still there.
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08-13-2010, 04:34 PM	#2
Z4-VILLA Banned 111 Rep 2,460 Posts Drives: Z4M Hardtop Roadster Join Date: Feb 2009 Location: Classified iTrader: (0)	http://www.drvanos.com/
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08-13-2010, 04:55 PM	#3
brandobot Second Lieutenant 41 Rep 291 Posts Drives: 06 Z4M Join Date: Jul 2010 Location: Bay Area Ca iTrader: (3)	Does the vanos only make noises on lower rpms or throughout the whole power band?
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08-13-2010, 06:17 PM	#4
Z4-VILLA Banned 111 Rep 2,460 Posts Drives: Z4M Hardtop Roadster Join Date: Feb 2009 Location: Classified iTrader: (0)	usually low rpm.....mileage?
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08-13-2010, 07:01 PM	#5
brandobot Second Lieutenant 41 Rep 291 Posts Drives: 06 Z4M Join Date: Jul 2010 Location: Bay Area Ca iTrader: (3)	60k miles. It happens at cold start for about 20 seconds, then disappears. If i'm in second gear at 1000 rpm, and i step on the gas, I can hear it for about 1-2 seconds very quietly. After that, it's completely gone.
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08-13-2010, 08:41 PM	#6
brandobot Second Lieutenant 41 Rep 291 Posts Drives: 06 Z4M Join Date: Jul 2010 Location: Bay Area Ca iTrader: (3)
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08-14-2010, 02:53 AM	#7
Z4-VILLA Banned 111 Rep 2,460 Posts Drives: Z4M Hardtop Roadster Join Date: Feb 2009 Location: Classified iTrader: (0)	thats a vanos issue also get new pulleys, = fixed.
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