95 540i engine tick

[Klaus Schuller]

When I bought this car at 60,000 with a fairly new engine due to nikasil problem the engine had a slight tick. Sounds like a valve tick but I believe this car has hydrolic valves. I thought this was normal, but I did not have the oportunity to compare it to another 540i. Now at 90,000 the tick is louder. Is this normal??

[Tiger]

No tick is normal... have you changed the belts? Sometime it is the belt that causes ticking noises.

[MBXB]

I had a ticking sound that was rpm related. My indy dumped some stuff called Wonder Oil into the AC system. It's gone now.

[Unregistered]

A loose plug will also make a ticking sound that increases in frequency with increasing RPM.

Mike

[632 Regal]

so will an exhaust leak or a leaky injector.