Ticking in the engine bay.

WillNattrass · Post by **WillNattrass** » Sun Mar 17, 2019 2:22 pm

Looking at buying an E85 Z4 2.5si. The one I saw in the dealership today had a wierd ticking/ wiring noise coming from the engine bay. Is this something to be concerned about or just a common sound.

Many thanks.
Will

Marlon · Post by **Marlon** » Sun Mar 17, 2019 2:31 pm

ticking is normal - my 3.0si ticks louder after a week of short journeys, open her up on a good run and it pretty much disappears.
Discussed here: viewtopic.php?f=2&t=112691&p=1625869&hi ... g#p1625869
Search 'ticking' and you will find lots of info

WillNattrass · Post by **WillNattrass** » Sun Mar 17, 2019 2:57 pm

Excellent thanks so much, just rang the dealership back to make a deposit and apparently someone else is there looking at it. Fingers crossed.

Marlon · Post by **Marlon** » Sun Mar 17, 2019 7:13 pm

I would however take it for a good test drive, long enough to get the engine temp up to middle of gauge and then listen for the ticking.

wonkydonkey · Post by **wonkydonkey** » Sun Mar 17, 2019 8:31 pm

Whereabouts in the engine bay? There are rather a lot of things that can tick and whirr in an engine bay, before we dismiss this as an everyday sound

road warrior · Post by **road warrior** » Sun Mar 17, 2019 9:14 pm

back in the days of ohv a ticking meant a tappet was dry

firebobby · Post by **firebobby** » Sun Mar 17, 2019 10:47 pm

Cam chain tick/rattle

Silverzedtom · Post by **Silverzedtom** » Sun Mar 17, 2019 11:06 pm

Could also be the dual mass flywheel rattling a little bit - also generally pretty standard. If it’s the flywheel it will stop when the clutch pedals down. Like others have suggested it probably just needs a run

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