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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > 2011 335is idel ticking noise



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      06-25-2014, 03:43 AM   #1
TOPEC
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2011 335is idel ticking noise

so recently my car developed a ticking noise at idle, this is not wastegate rattle, hydralic lifters ticking noise, or the injectors ticking. this noise sounds a lot louder than any of those noise and seems to only happen at idle. if i rev the engine even just a tiny bit it'll go away, so it only happens at idle. it happens intermittently only tho, i cannot replicate this in any way and it has happened to me twice already.

here is a video of i recorded


and here is the exact same noise of someone else's car


it sounds pretty serious as the knocking is quite loud

anyone have any ideas on what it could it?
i already have a service appointment tomorrow for the DCT stalling in reverse randomly and will have the dealer look into this as well
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      06-25-2014, 07:22 AM   #2
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Ticking, rev, goes away and comes back shortly after? Perfectly normal. Fuel pressure release valve.
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      06-25-2014, 07:59 AM   #3
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Normal, especially after the car has been broken in

Also, sounds like you got very old software on your car for your DCT to be stickin. Hopefully its the drive stick thats sticking and not the actual DCT.

FYI, they may try to update the car's software make sure they dont update pass "ILA0S" . The latest version of BMW's ROM is a new family of ROM that will cause nightmares if you are flashed tuned.
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      06-26-2014, 06:58 AM   #4
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so my car's at the dealers now, only issue they found was the transmission pan leaking... AGAIN, so they're gonna warranty the pan again. according to their records, the last time i brought the car in the oil pan was replaced but they told me the oil pan gasket was leaking and was the only thing replaced... n no updates on the stalling...

anyways, back to the ticking noise, since through searches on the forum points to the fuel pressure release valve and is a common thing to happen to N54s im a bit more calm now, but what im not calm abt is the typical dealer bullshit they're giving me. i dropped off the car and within 2 hrs dealer calls me, do u have any mods? tunes? its basically a stock car other than the DCIs so im sure the service tech popped the hood, saw the intakes and blamed it on aftermarket parts. they're explanation of the noise? u have the engine cover along with sound insulation removed thats y u can hear the engine noise now. i told them this just started happening and i've had the covers and insulation removed 25K KMs ago, so its def new n not due to the items being removed. they were speechless...
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      10-23-2014, 07:16 PM   #5
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Quote:
Originally Posted by TOPEC View Post
so my car's at the dealers now, .
The guy in the second video you posted said he cleaned his intake valves and the noise went away. Check it out in the comments.
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      10-24-2014, 12:06 AM   #6
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Dude my car does the same thing after long drives. I just drove to Vegas and about halfway there I stopped at a rest stop for my wife to use the bathroom. When I was sitting there with my car idling, I heard the same thing. My car said I needed a 1/4 quart of oil. I added and the noise went away. This has happened 3 times to me and every time I was low on oil. I do believe this is hydraulic lifter noise as oil drives them. Faulty or failing vanos solenoids can affect valve height and duration....hence this is most likely the case bud.
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      10-24-2014, 10:22 AM   #7
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My N55 was making a similar noise and then I got the VANOS assemblies replaced under warranty/recall and it is much quieter.
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