Raspy noise at 2180Rpm under load

**Foxpuppet** · 24-03-2019, 09:34 PM

Over the last few weeks I started to notice a strange sound from the engine/exhaust in our Passat Tdi Alltrack DSG.

When driving up hills in second or third at approximately 2180rpm there is an unusual raspy sound (vibration like) it doesn’t seem to happen in 1st gear or 4th and above. It also won’t do it in Neutral.

video for reference.

YouTube

At first it was hard to get it to happen, but now it’s becoming far more noticeable. Doesn’t seem to happen on flat road or while coasting in gear downhills.

Second hand Dealer Purchased in January, I’ve got balance of new car warranty to roughly November. (I’ll check original QLD rego details)

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**rave75** · 25-03-2019, 10:07 AM

I had strange noise when going downhill at around 1800-2000rpm. That was the clutch, had to replace the clutch pack

**Foxpuppet** · 25-03-2019, 08:17 PM

Originally Posted by rave75

I had strange noise when going downhill at around 1800-2000rpm. That was the clutch, had to replace the clutch pack

How did they diagnose the issue?

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**rave75** · 26-03-2019, 10:30 AM

Originally Posted by Foxpuppet

How did they diagnose the issue?

I am not sure, I guess they are aware since this thing happens quite often and they went to check the clutch straight away.

**Foxpuppet** · 27-03-2019, 10:42 AM

Originally Posted by rave75

I am not sure, I guess they are aware since this thing happens quite often and they went to check the clutch straight away.

Did yours fail or they fixed it before failure?

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**doc_777** · 27-03-2019, 11:03 AM

Sounds like a harmonic vibration to me, not mechanical. Perhaps one of the mufflers has shaken its internals loose.

**Foxpuppet** · 27-03-2019, 06:04 PM

Originally Posted by doc_777

Sounds like a harmonic vibration to me, not mechanical. Perhaps one of the mufflers has shaken its internals loose.

Cheers Doc, Would you take to dealer or exhaust specialist for an assessment? Unless there’s physical damage would this be a warranty issue?

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**doc_777** · 28-03-2019, 06:44 AM

Originally Posted by Foxpuppet

Cheers Doc, Would you take to dealer or exhaust specialist for an assessment? Unless there’s physical damage would this be a warranty issue?

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i’d take the video with me to the dealer if it’s under warranty. Main reason being, the dealer is the only one authorised to do warranty work. All you’re after initially is a diagnosis. Book in a time where the service manager can go for a drive with you to witness the issue - then there can be no response of “could not replicate”.

**Wynnston** · 28-03-2019, 09:39 AM

Perhaps it's the dreaded wastegate rattle issue that they never solved @ factory. The fix is a clip on the wastegate actuator. It might not be it, but I tend to suggest the common stuff first.

**doc_777** · 28-03-2019, 10:35 AM

Originally Posted by Wynnston

Perhaps it's the dreaded wastegate rattle issue that they never solved @ factory. The fix is a clip on the wastegate actuator. It might not be it, but I tend to suggest the common stuff first.

do you know if that issue is exclusive to petrol or Diesel engines, or whether it afflicts both?