PD160 buzzing at 2500rpm

[Tom B]

I took the Cupra out today and discovered it has a horrible rattle/buzzing noise coming from the engine bay at 2500rpm. To me it sounds like when you have a serious boost leak, although as far as I can see, all the FMIC pipes are on and secured fine.

Anyone else had this? Any ideas before I call Motorvogue?

 

[muddyboots]

Might be Ye Olde boost-pipe-rattling-on-fuel-filter-housing problem...happened on loads of 130s at certain revs like you describe.

 

[sssstew]

eh? a boost leak doesnt sound like buzzing or rattling, its a hissing.

 

[mrcoyote]

Could be the air box or engine cover rattling on the struct brace if you have one?

 

[Tom B]

eh? a boost leak doesnt sound like buzzing or rattling, its a hissing.

Sounded exactly like the time I had a boost leak on the red PD130. Cover the leak up and its gone!

Could be the air box or engine cover rattling on the struct brace if you have one?

Nope, no strut brace and I tested it with the engine cover off - no difference!

Might be Ye Olde boost-pipe-rattling-on-fuel-filter-housing problem...happened on loads of 130s at certain revs like you describe.

Sounds like something to check! It goes in for the service next week so I'll check it out while its on the ramps! Cheers Lee!

Any other ideas before I pull the engine cover off and only look for one thing?

 

[Nathan]

Mine does something similar, when I pass through 1700rpm slowly, or drive around a carpark etc in second gear when 1700 rpm is the best speed I get the most annoying loud rattle/buzzing from under the dash. I dont think its from the engine bay though. I think this is just the poor build quality on the Mk4, give me back my mk3 cupra anyday for build quality!

I asked then to sort it at SEAT and they said, thats just what diesels are like!! Thought they were a bit more refined nowadays though.

 

[Tom B]

Nathan, my old PD130 did that, it was the instrument cluster. It went in twice and was never fixed

 

[muddyboots]

Mine does something similar, when I pass through 1700rpm slowly, or drive around a carpark etc in second gear when 1700 rpm is the best speed I get the most annoying loud rattle/buzzing from under the dash. I dont think its from the engine bay though. I think this is just the poor build quality on the Mk4, give me back my mk3 cupra anyday for build quality!

I asked then to sort it at SEAT and they said, thats just what diesels are like!! Thought they were a bit more refined nowadays though.

Nathan, when my boost pipe was rattling on the fuel filter housing, I could have sworn it was coming from near the bulkhead, certainly didn't think the noise would come from as far away as it did. Might still be worth a check.

 

[Johnsey]

Nathan, when my boost pipe was rattling on the fuel filter housing, I could have sworn it was coming from near the bulkhead, certainly didn't think the noise would come from as far away as it did. Might still be worth a check.

Agreed, and it gets annoying after a while (12k miles)

 

[andythom]

does this happen on the 20vt's too?

I've just started to hear a rattle that sounds as though its coming from the bulkhead/even pedal box.....

 

[chillcupra]

Tom B did you ever get this sorted. I think i have the same problem with my cupra tdi. Did you feel it through the pedals aswell?

Ta

 

[rashcupra]

i know *chillcupra* has the same symptoms throu the pedals on his derv cupra!!

 

[chillcupra]

Thats me rash...changed my name lol

 

[Tom B]

Yeah I got it fixed, the boost pipe was hitting the fuel filter as muddyboots mentioned.

Get it to the dealers my friend