996 TT whine from engine bay

[boony]

Today whilst on a run out with some north east and yorkshire PHers, I noticed a high pitched whine whilst cruising along. When we stopped the noise was very apparent whilst idleing. I thought it was the engine compartment fan - it sounds to me like bearings or something running dry?? Anyway, we unplugged the fan and it made no difference.

Pressing the clutch made the noise stop, but strangely releasing it again didn't make the noise start again.

Any ideas? I'm guessing clutch maybe on it's last legs - I've done >10K since getting it in May so it's fast approaching the 50K mark so clutch may well be due. There's no slip though and gearchanges are smooth as silk so I don't really want to replace it if it's not that.

[Glenn McMenamin]

boony said:

Today whilst on a run out with some north east and yorkshire PHers, I noticed a high pitched whine whilst cruising along. When we stopped the noise was very apparent whilst idleing. I thought it was the engine compartment fan - it sounds to me like bearings or something running dry?? Anyway, we unplugged the fan and it made no difference.

Pressing the clutch made the noise stop, but strangely releasing it again didn't make the noise start again.

Any ideas? I'm guessing clutch maybe on it's last legs - I've done >10K since getting it in May so it's fast approaching the 50K mark so clutch may well be due. There's no slip though and gearchanges are smooth as silk so I don't really want to replace it if it's not that.

I know exactly the noise you are refering to, and forgot to mention this to my service manager, until after my TT's recent 24k mile service
Yes, it stops momentarily after depressing the clutch.

I 'think' the noise is coming from the Pnuematic pump thingy, it's a silver looking thing with a few hoses coming out of it, and is located at the centre right of the engine bay as you lift the hood.
I think the TT has a power assisted clutch, and this pump runs it (aswell as power steering i think).

All the above could be complete b@ll@x by the way, so don't quote me on it

My car made the noise from nearly new, and i also thought it was just the noisey fan in the engine cover, so seeing as it has been like this for so long, i don't 'think' it is a big problem...but would appreciate any advice from anyone in the know...

G.

Edited by Glenn McMenamin on Saturday 25th August 15:36

[boony]

Cheers for the info Glenn, much appreciated. Now you've said that, I recall one of the lads looking under the bonnet also said they believe it to be that pump thing you refer to.

Hopefully someone will be along to confirm it's not an issue. Fingers crossed. Any help much appreciated lads.

Edited by boony on Saturday 25th August 15:49

[30121980]

Boony - get off line and get those tips changed....!!!

[Weltmeister]

Boony
It is the one way valve in the fluid reservoir [shiny thing Glenn called it]I had one changed last week on a Turbo S doing exactly the same noise. Was c£280 from Porsche done & dusted.


Allan

[boony]

Cheers Allan - top bloke!

Is £280 for the valve or the whole unit? Any chance this would be covered on my porsche warranty?

[boony]

30121980 said:

Boony - get off line and get those tips changed....!!!

LOL It'll be tomorrow afternoon at the earliest mate - I have the two bairns all night and tomorrow morning as my lass is off out with the lasses for her birthday.

Thanks again for those tips bud. And the seatbelt pads. Well worth the fish & chips it cost me!

[30121980]

Fran:- Get the kids to do a tip each...

Just found a belta scratch on me passenger side door..looks like it`ll cost me a few quid!!

Expensive run out

[boony]

eh!? did you hit anything like? we only stopped at the chippy, I can't imagine anyone doing it any harm there. bad news mate, but you'll get it sorted soon no doubt.

[30121980]

Fran,...I think at times I was pretty close to the edge(the trees, bushes & everything else near to the side/curbs.....on closer inspection also looks like i may have coughed up a few stones and got myself another few front end chips(big ones)

IT......WELL WORTH IT

Excellent run out today mate...your gonna have to get a little more bhp out of that tt mate!

Enjoy the tips - and thanks for the fish & chips, would have loved a pint of john smiths with them like, well not to worry.
Gonna get the car booked in and have all the chips, scratches and alloys done..so its in tip top nick for when i finally get it detailed.

Enjoy your evening....I am going to drink my russian vodka! works out £2.50 a bottle for 100% proof!

Hope you get the problem sorted mate...opc newcastle/leeds ???? - both cack though IMHO - take it to RLR OR MALTON

[Weltmeister]

Francis
The £280 was what OPC Hatfield charged for supply & fit/bleed & new Pentosin etc inc labour & vat.

Cheers

Allan

[willr]

I had this on my car for a long time, but since it was intermittent the OPC never managed to diagnose it. All the evidence pointed to the one way valve Allan mentions.
The OPC informed me that if that was the case then it would not be covered by the extended warranty. What a surprise! Instead of arguing with them, I decided to leave it and the car was fine.