dc5s wroteMine sounds EXACTLY like yours, but the mystery deepens- when I turn the wheel in the driveway to listen inside the wheel well the noise dissapears. You read that right... turn the wheel back to center, ticking noise comes back. Turn it off center right or left, rev engine, NO TICKING. So it's not valve noise, it's not rod bearings (changed) or cats. It actually only occurs when the wheels are pointed straight. Test my theory fellow tickers, and somebody please figure this out!
These second videos are after a drive around the block to normal operating temp. the noise is apparent at idle and revving. the frequency of the noise increases when revving.
it's hard to say whether the noise is coming from the top or bottom of the engine.
Stainless 45 wroteDuring currently the warmest Summer for ages (which is like 32C in Sweden), I also started to notice some of this ticking. Didnt worry me as Ive seen its been around with plenty cars, but still nice to hear you have taken some of the suspect areas away. And hey, easy enough to turn the wheels should it get too anoying...Hey all- Just bumping this thread up again since I'm sure with the warmer weather a lot of us have seen a return of the annoying "tick". As per my last post I have the same noise that you all have experienced and recorded. But sitting still and cranking the wheel to one side or the other the ticking goes away. So it's not rod bearings, not cats (x pipe) not valve lash, and not injectors etc. It's probably not the idler pulley or the heat shields. So WTF is it??? Getting tired of my M3 sounding like a 500k mile Honda
GORDON.M3 wroteMy Z4 had the notorious N52 lifter tick. People swore it would go away and come back depending on the oil. There was a service bulletin that came out and the lifters were replaced - problem solved.I'm sure many of us have owned several BMWs and long enough to know that ticking is just part of BMW engine noise. lol...
Aries326 wroteThere was no such thing for my N52, I had taken it into the dealership several times when it was still under warranty and they never had mentioned there was a service bulletin fix. Canada always gets the shitty end of the stick.My Z4 had the notorious N52 lifter tick. People swore it would go away and come back depending on the oil. There was a service bulletin that came out and the lifters were replaced - problem solved.
GORDON.M3 wroteYou must rev the hell out of it then.Aries326 wroteThere was no such thing for my N52, I had taken it into the dealership several times when it was still under warranty and they never had mentioned there was a service bulletin fix. Canada always gets the shitty end of the stick.My Z4 had the notorious N52 lifter tick. People swore it would go away and come back depending on the oil. There was a service bulletin that came out and the lifters were replaced - problem solved.
However 200,000 miles later, the car still runs. So I don't think the ticking has ever done anything bad to the engine.
330indy wrotea redline a day keeps the doctor away.You must rev the hell out of it then.
Mild driving aggravated the issue with the hydraulic lifters
GORDON.M3 wroteAmen330indy wrotea redline a day keeps the doctor away.You must rev the hell out of it then.
Mild driving aggravated the issue with the hydraulic lifters
GORDON.M3 wroteWhat year is your Z4? That's a lot of miles. Mine is a 2008 with only 46k miles. That's about to change since it's now my DD since buying the M3.Aries326 wroteThere was no such thing for my N52, I had taken it into the dealership several times when it was still under warranty and they never had mentioned there was a service bulletin fix. Canada always gets the shitty end of the stick.My Z4 had the notorious N52 lifter tick. People swore it would go away and come back depending on the oil. There was a service bulletin that came out and the lifters were replaced - problem solved.
However 200,000 miles later, the car still runs. So I don't think the ticking has ever done anything bad to the engine.
Aries326 wroteMine wasn't Z4, I had a 2007 E90 323i which was the 2.5L N52 engine. Its the same as the 3.0L n52 just smaller displacement. The only convertible I ever owned was a 325ci. Surprisingly that M52 is bulletproof also, ticked but it has nearly 300,000km on it and my uncle still drives it today!What year is your Z4? That's a lot of miles. Mine is a 2008 with only 46k miles. That's about to change since it's now my DD since buying the M3.
Stainless 45 wroteOKAY THANK YOU. Mine does this... but as soon as i turn the wheel and leave it there it stops...dc5s wroteMine sounds EXACTLY like yours, but the mystery deepens- when I turn the wheel in the driveway to listen inside the wheel well the noise dissapears. You read that right... turn the wheel back to center, ticking noise comes back. Turn it off center right or left, rev engine, NO TICKING. So it's not valve noise, it's not rod bearings (changed) or cats. It actually only occurs when the wheels are pointed straight. Test my theory fellow tickers, and somebody please figure this out!
These second videos are after a drive around the block to normal operating temp. the noise is apparent at idle and revving. the frequency of the noise increases when revving.
it's hard to say whether the noise is coming from the top or bottom of the engine.
igM3NACER wroteAny update?Stainless 45 wroteOKAY THANK YOU. Mine does this... but as soon as i turn the wheel and leave it there it stops...dc5s wroteMine sounds EXACTLY like yours, but the mystery deepens- when I turn the wheel in the driveway to listen inside the wheel well the noise dissapears. You read that right... turn the wheel back to center, ticking noise comes back. Turn it off center right or left, rev engine, NO TICKING. So it's not valve noise, it's not rod bearings (changed) or cats. It actually only occurs when the wheels are pointed straight. Test my theory fellow tickers, and somebody please figure this out!
These second videos are after a drive around the block to normal operating temp. the noise is apparent at idle and revving. the frequency of the noise increases when revving.
it's hard to say whether the noise is coming from the top or bottom of the engine.
But now, i have a CEL 2762 VANOS maximum stop outlet bank 2 which is weird because ive never heard about vanos problems on s65's and every shop i have contacted doesn't really know how to proceed... and cant find a vanos unit online to purchase anywhere.
Now my car is starting to make a rattling sound on very low rpms.
