vRS Grinding noise on start-up and for 10 seconds of driving - any ideas?

[Stu vRS]

Hello all,

Just started up the vRS after having it sat idle in the garage for nearly 2 weeks due to having access to another car.

When I started it, it made an awful grinding noise like putting a can in between the tyre and frame of a bicycle (don't say you never did it as a kid!)

It was almost like the exhaust was blowing.

I pulled out of the driveway and after about 10 to 15 seconds of driving it stopped, I went for a spin round the block, got the engine up to temperature, got home, and haven't been able to replicate the noise or find the source of it.

Oil level checked on warm engine, it's fine.

No warning lights on dash.

Any ideas? Worth looking at?

[Stu vRS]

Found this, very similar:

[MartynVRS]

Wasn't backed up close to a wall was it? Could be the exhaust blowing against it.

[Stu vRS]

No it was a good few feet away from the wall.

Definitely came from the engine bay because I was stood outside the car when starting it.

[philhoward]

Like a lazy hydraulic tappet? Mine sometimes does it (had a little "clack" in the queue at McDonalds the other night) - but there's 70k on my engine.

Other possibility is the VVT mechanism, maybe? I've heard they can sound "interesting" on a drained engine.

If its a one off, should be OK. If it starts doing it all the time, then get it checked out...

[Gumby]

Sometimes get a similar noise when mine's been sitting in the garage for a few days unused, but only for like 1 second after i start the engine.

Used to get this even more with my old 1.2 HTP

[sharkrider]

like others said, may just be a symptom of being say... oil all away from the head... did it take a few seconds for the oild pressure light to go out?

[Mike Wrightson]

Timing chain or chain tensioner. Sounds like it growls at you. That's what a few 1.2TSI's have had changed to an upgraded part.

[Stu vRS]

No oil lights as far as I can see.

It's been fine since, very strange.

Maybe just a symptom of sitting idle doing nothing for so long, still worrying though.

[stu_mcl]

Mine sounds rather ruff for the first few seconds but no where near as bad as that

[m8t]

http://www.briskoda.net/forums/topic/183757-strange-noise-after-starting-like-a-cow/page__p__2203714__hl__noise+after+starting__fromsearch__1

starter motor??

[VicRS]

Absorber can be responsible. It works from time to time.