What is this sound?

miracle113 · 02-01-2014, 06:38 PM

Started my car today after a while, and it is making this sound...

Whats the deal? Is it the belt? Or it's nothing...?

Thanks a lot guys.

wolfman1807 · 02-01-2014, 08:24 PM

Quote:

Originally Posted by miracle113

Started my car today after a while, and it is making this sound...

Whats the deal? Is it the belt? Or it's nothing...?

Thanks a lot guys.

Sounds like money

Rick F. · 02-01-2014, 09:52 PM

miracle,

If you're referring to the prominent "tapping" sound, that sounds like a valve clearance that's too large. Fixing it involves adjusting the clearances, which is a straightforward job for a trained mechanic.

Unfortunately, other things can produce a somewhat similar sound, some of them bad news. But out-of-tolerance valve clearances are not uncommon. Checking them and readjusting them are regular maintenance items.

Good luck, and let us know what it turns out to be.

Rick F.

newbizie · 02-01-2014, 10:17 PM

i got a good knock from filling up with bad gas wasnt nearly as bad as this but i +1 with clearance issues

StickMon · 02-01-2014, 10:23 PM

Is this a non ///M?
I thought they had hydraulic lifters.

psygnosis · 02-01-2014, 11:57 PM

Classic BMW N52 lifter tick. I've heard it on my parents X3, it goes away and comes back, I think it's mostly harmless?

miracle113 · 02-02-2014, 01:43 AM

I think my car hates me after I neglected her. Didn't drive her for a good month... So after a good drive tonight, the sound went away. Hopefully it will stay this way.

ManiacGT · 02-04-2014, 10:15 AM

Its an HVA fault. Its caused by oil starvation, the hydraulic adjusters for the valves need oil to function and if they starve, you get lifter slap, which is that noise. Time for an oil change perhaps?

It won't cause any damage, but it won't be great for engine function as the valve clearances are diminished.

Handyman2007 · 02-05-2014, 05:23 PM

It seems pretty loud but could it be the DISA Valve ??? I have to replace mine at about 70,000 miles, very easy to do only a few bolts to remove... I bought my replacement at ECS Tuning for like $90.00... It is worth checking.

Sorry $290.00

http://www.ecstuning.com/ES25793/

BMWZ42.2I · 02-23-2014, 03:19 AM

i have a strong feeling that it is your disa valve. Try to unplug the disa connecter while the engine is running. If the ticking sound goes away then you should replace your disa valve asap as it can destroy your engine.

jeebus87 · 02-23-2014, 02:02 PM

Very unlikely to be the DISA valve, as it was upgraded in the N52 engines. The pre-facelift Z4s are the ones which will have DISA issues. +1 for lifter tick due to lack of oil at the top. It's a common issue, unfortunately.

Aries326 · 02-23-2014, 02:19 PM

That's the notorious N52 lifter tick problem. I had the same thing. The dealer swapped out the lifters and the ticking went away.

I read that the ticking will probably come back if the heads aren't replaced as well. Problem with that is BMW won't replace the heads unless ticking returns after lifter replacement. I've only driven about 2500 miles since lifters were replaced and I haven't had any ticking since.

There's a huge thread on it covering years of information. Some owners have been able to get dealers to replace lifters and heads. Others just lifters. Others none at all. Here's the thread:

http://www.e90post.com/forums/showthread.php?t=13504" rel="ugc" target="_blank">http://<a href="http://www.e90post.c...hp?t=13504</a>

1SerieStud · 02-23-2014, 02:23 PM

I'm going with lifter tick as well. If it goes away when you rev it up (oil pressure goes up and lubricates the lifters more) then it's most likely the lifters. If you get a loud rattle sound when you rev it up, then there are quite a few possibilities on the table, a spun rod bearing being one of them. That said, I believe this is coming from the lifters.

02-01-2014, 06:38 PM	#1
miracle113 New Member 3 Rep 25 Posts Drives: Z4 Coupe Join Date: Aug 2011 Location: USA iTrader: (0)	What is this sound? Started my car today after a while, and it is making this sound... Whats the deal? Is it the belt? Or it's nothing...? Thanks a lot guys.
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02-01-2014, 09:52 PM	#3
Rick F. Lieutenant Colonel 948 Rep 1,910 Posts Drives: 2013 BMW 335i cabriolet Join Date: Jun 2009 Location: Catonsville, MD iTrader: (0)	miracle, If you're referring to the prominent "tapping" sound, that sounds like a valve clearance that's too large. Fixing it involves adjusting the clearances, which is a straightforward job for a trained mechanic. Unfortunately, other things can produce a somewhat similar sound, some of them bad news. But out-of-tolerance valve clearances are not uncommon. Checking them and readjusting them are regular maintenance items. Good luck, and let us know what it turns out to be. Rick F.
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02-01-2014, 10:17 PM	#4
newbizie Private 4 Rep 92 Posts Drives: 05 Z4 3.0i Join Date: Oct 2013 Location: Ft Walton Beach, FL iTrader: (0)	i got a good knock from filling up with bad gas wasnt nearly as bad as this but i +1 with clearance issues
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02-01-2014, 10:23 PM	#5
StickMon My other car is on Mars 636 Rep 3,124 Posts Drives: 2006 MR Join Date: Feb 2011 Location: Lo-Cal iTrader: (1)	Is this a non ///M? I thought they had hydraulic lifters. __________________ Warning: May contain traces of nuts.
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02-01-2014, 11:57 PM	#6
psygnosis Major 23 Rep 1,034 Posts Drives: '04 Z4 3.0i Sport Join Date: Nov 2008 Location: WA iTrader: (0)	Classic BMW N52 lifter tick. I've heard it on my parents X3, it goes away and comes back, I think it's mostly harmless? __________________ Straightaways are for fast cars, Corners are for fast drivers.
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02-02-2014, 01:43 AM	#7
miracle113 New Member 3 Rep 25 Posts Drives: Z4 Coupe Join Date: Aug 2011 Location: USA iTrader: (0)	I think my car hates me after I neglected her. Didn't drive her for a good month... So after a good drive tonight, the sound went away. Hopefully it will stay this way.
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02-04-2014, 10:15 AM	#8
ManiacGT Major 85 Rep 1,448 Posts Drives: Z4 sDrive 35i Join Date: Jan 2011 Location: Manchester, UK iTrader: (0)	Its an HVA fault. Its caused by oil starvation, the hydraulic adjusters for the valves need oil to function and if they starve, you get lifter slap, which is that noise. Time for an oil change perhaps? It won't cause any damage, but it won't be great for engine function as the valve clearances are diminished.
	Appreciate 0 Quote

02-05-2014, 05:23 PM	#9
Handyman2007 Private First Class 14 Rep 117 Posts Drives: 2004 Z4 3.0i, 2014 328d xdrive Join Date: Oct 2007 Location: Ottawa, Canada iTrader: (0)	It seems pretty loud but could it be the DISA Valve ??? I have to replace mine at about 70,000 miles, very easy to do only a few bolts to remove... I bought my replacement at ECS Tuning for like $90.00... It is worth checking. Sorry $290.00 http://www.ecstuning.com/ES25793/ __________________ Last edited by Handyman2007; 02-05-2014 at 05:25 PM.. Reason: typo - wrong price
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02-23-2014, 03:19 AM	#10
BMWZ42.2I New Member 2 Rep 13 Posts Drives: BMW Z4 2.2I Join Date: Jul 2013 Location: New Zealand iTrader: (0)	i have a strong feeling that it is your disa valve. Try to unplug the disa connecter while the engine is running. If the ticking sound goes away then you should replace your disa valve asap as it can destroy your engine.
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02-23-2014, 02:02 PM	#11
jeebus87 Second Lieutenant 32 Rep 292 Posts Drives: '11 atacama yellow Z4 35i Join Date: Oct 2012 Location: USA iTrader: (4)	Very unlikely to be the DISA valve, as it was upgraded in the N52 engines. The pre-facelift Z4s are the ones which will have DISA issues. +1 for lifter tick due to lack of oil at the top. It's a common issue, unfortunately.
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02-23-2014, 02:19 PM	#12
Aries326 Lieutenant Colonel 195 Rep 1,530 Posts Drives: 2008 Z4 3.0si, 2013 E92 M3 ZCP Join Date: Aug 2011 Location: NC iTrader: (2) Garage List 2013 E92 M3 [0.00] 2008 BMW Z4 3.0si [9.00]	That's the notorious N52 lifter tick problem. I had the same thing. The dealer swapped out the lifters and the ticking went away. I read that the ticking will probably come back if the heads aren't replaced as well. Problem with that is BMW won't replace the heads unless ticking returns after lifter replacement. I've only driven about 2500 miles since lifters were replaced and I haven't had any ticking since. There's a huge thread on it covering years of information. Some owners have been able to get dealers to replace lifters and heads. Others just lifters. Others none at all. Here's the thread: http://www.e90post.com/forums/showthread.php?t=13504" rel="ugc" target="_blank">http://<a href="http://www.e90post.c...hp?t=13504</a> __________________
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02-23-2014, 02:23 PM	#13
1SerieStud Brigadier General 183 Rep 3,939 Posts Drives: '11 VO 1M (498 of 740) Join Date: Jul 2010 Location: Jacksonville, FL iTrader: (11)	I'm going with lifter tick as well. If it goes away when you rev it up (oil pressure goes up and lubricates the lifters more) then it's most likely the lifters. If you get a loud rattle sound when you rev it up, then there are quite a few possibilities on the table, a spun rod bearing being one of them. That said, I believe this is coming from the lifters.
	Appreciate 0 Quote