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Weird rattle @ 1500 rpm

jonk

jonk

New member
Evening guys. My S2 has a rattle at low revs around 1500 rpm that sounds like a loose heat shield or exhaust mounting. Strange this is that I can only get it to rattle when driving, not when blipping or holding the throttle in the drive. It's not clutch related as I can hear it at 35 mph in 4th gear, though it is most noticeable when changing up through the gears.
Was going to run it into the local exhaust guy but don't know if he's got much to go on if it won't rattle on the ramp. Any thoughts?

Cheers Jon
 
Mine did something similar and it was the heatshield under the exhaust manifold vibrating and touching the exhaust. A couple of hundred rpms either way and it stopped resonating. I just reached down and bent it back a bit, hopefully yours is as easy to solve.
 
Our legacy had exactly the same, bending the heat shield a bit solved it. Never worked out why it only happened on the move; it would rattle like mad turning in to the drive but never when you tried revving it at a standstill. [&:]
 
Thanks. Apologies for seeming extra thick, but did you access the manifold heat shield via the engine bay or underneath up by the sump? Just tried the heat shield half way back the exhaust and that seems well seated and absolutely fine.
 
Via the engine bay, just stuck my hand between the oil filter and exhaust manifold and gave it a tweak. I wouldn't do it on a hot engine though!
 
This might sound odd, but I had a weird rattle which after weeks of searching turned out to be the handbrake lever! And another buzzy noise at around 3000 rpm, which seemed to come from behind the instrument pod, turned out to be knackered engine mounts.
 
Bell housing backplate shield is worth a look at also , [:)]same on mine , cracked around one of the retaining bolts !
 
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