335i rattle when cold chain?

Lukey335i · 05-01-2014, 04:14 PM

Hi there

Noticed a annoying rattle sounds like a chain rattle, literally only happens on start up and when cold. Almost like waiting for chain to be fed with oil. It is not even a few second noise.

Any ideas?

Thanks

AtlantaDude · 05-01-2014, 04:15 PM

is the noise coming from the front of the car or the rear? If it's from the front, it may be waste gate rattle.

Lukey335i · 05-01-2014, 04:17 PM

Yeah defo sounds like front.

Sounds like a metallic click for literally 1 second, no noise when idle apart from injectors and lifters.

AtlantaDude · 05-01-2014, 04:29 PM

yeah, that's probably your wastegate ratteling for a quick sec. Does it rattle on deceleration? There are different ways to fix it, from expensive, to cheap.

Lukey335i · 05-01-2014, 05:47 PM

No the rattle is not heard at all in any way after the first rattle on cold start.

Thst why I thought it was the chain tapping waiting to be oiled.

joeyt · 05-01-2014, 06:11 PM

When was the last time your oil was changed? Was it main dealer? Is it the right grade? What is your oil level like now.

Your asking a very specific question.
We cant hear the noise and with a very rough explanation its pretty tough to help.

If you answer the above questions we may be able to rule out oil being the issue. Next it will be either wastegates, chain tensioner or a number of other things.

Wastegates dont sound like they are the culpret as they rattle for longer than a second. At least 2-3 seconds and it is an obvious noise and has not been described like them as a "click" is not the usual noise.

djgandy · 05-02-2014, 02:57 AM

Quote:

Originally Posted by Lukey335i

No the rattle is not heard at all in any way after the first rattle on cold start.

Thst why I thought it was the chain tapping waiting to be oiled.

I think I have this noise. It's probably waste gates. It's very clicky sounding and only ever happens when starting the car from cold.

Lukey335i · 05-02-2014, 02:45 PM

I changed the oil myself
Castrol ow30 bmw filter and bmw oil. It's done max of 3k I will change again In 3k.
The oil level is bang on the max and hasn't used any since I changed.
I can't remember if it was there before that's the annoying thing but everything was done correctly.

I don't even think I would be able to get it on film as the noise is there so quick and gone. I must admit it does sound like the tensioner failing and allowing the timing chain to slap.

Hope this helps.

joeyt · 05-02-2014, 09:04 PM

Im leaning toward the tensioner aswell but its just guess work. Personally I would be using 5w30 instead of 0w30.

05-01-2014, 04:14 PM	#1
Lukey335i New Member 1 Rep 29 Posts Drives: 2008 335i Join Date: Apr 2014 Location: Uk iTrader: (0)	335i rattle when cold chain? Hi there Noticed a annoying rattle sounds like a chain rattle, literally only happens on start up and when cold. Almost like waiting for chain to be fed with oil. It is not even a few second noise. Any ideas? Thanks
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05-01-2014, 04:15 PM	#2
AtlantaDude Just enjoying my time 128 Rep 855 Posts Drives: 2007 BMW E92 335i - Sold Join Date: Mar 2012 Location: Atlanta iTrader: (0)	is the noise coming from the front of the car or the rear? If it's from the front, it may be waste gate rattle. __________________ Current - 2022 Rivian R1T, 2021 Ducati Streetfighter V4S, 1969 Chevy C10 Sold - 2018 Tesla Model 3 Performance Sold - 2007 E92 335i If speed is death, then buy a Honda and live forever
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05-01-2014, 04:17 PM	#3
Lukey335i New Member 1 Rep 29 Posts Drives: 2008 335i Join Date: Apr 2014 Location: Uk iTrader: (0)	Yeah defo sounds like front. Sounds like a metallic click for literally 1 second, no noise when idle apart from injectors and lifters.
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05-01-2014, 04:29 PM	#4
AtlantaDude Just enjoying my time 128 Rep 855 Posts Drives: 2007 BMW E92 335i - Sold Join Date: Mar 2012 Location: Atlanta iTrader: (0)	yeah, that's probably your wastegate ratteling for a quick sec. Does it rattle on deceleration? There are different ways to fix it, from expensive, to cheap. __________________ Current - 2022 Rivian R1T, 2021 Ducati Streetfighter V4S, 1969 Chevy C10 Sold - 2018 Tesla Model 3 Performance Sold - 2007 E92 335i If speed is death, then buy a Honda and live forever
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05-01-2014, 05:47 PM	#5
Lukey335i New Member 1 Rep 29 Posts Drives: 2008 335i Join Date: Apr 2014 Location: Uk iTrader: (0)	No the rattle is not heard at all in any way after the first rattle on cold start. Thst why I thought it was the chain tapping waiting to be oiled.
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05-01-2014, 06:11 PM	#6
joeyt Banned 5 Rep 380 Posts Drives: 335i Join Date: Jan 2014 Location: essex iTrader: (0)	When was the last time your oil was changed? Was it main dealer? Is it the right grade? What is your oil level like now. Your asking a very specific question. We cant hear the noise and with a very rough explanation its pretty tough to help. If you answer the above questions we may be able to rule out oil being the issue. Next it will be either wastegates, chain tensioner or a number of other things. Wastegates dont sound like they are the culpret as they rattle for longer than a second. At least 2-3 seconds and it is an obvious noise and has not been described like them as a "click" is not the usual noise.
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05-02-2014, 02:45 PM	#8
Lukey335i New Member 1 Rep 29 Posts Drives: 2008 335i Join Date: Apr 2014 Location: Uk iTrader: (0)	I changed the oil myself Castrol ow30 bmw filter and bmw oil. It's done max of 3k I will change again In 3k. The oil level is bang on the max and hasn't used any since I changed. I can't remember if it was there before that's the annoying thing but everything was done correctly. I don't even think I would be able to get it on film as the noise is there so quick and gone. I must admit it does sound like the tensioner failing and allowing the timing chain to slap. Hope this helps.
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05-02-2014, 09:04 PM	#9
joeyt Banned 5 Rep 380 Posts Drives: 335i Join Date: Jan 2014 Location: essex iTrader: (0)	Im leaning toward the tensioner aswell but its just guess work. Personally I would be using 5w30 instead of 0w30.
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