Noise after startup

[BEV]

Good Afternoon.

I am a new member to this forum. I was hoping someone might have an idea what this noise is in the attached video. I have owned the car for a year and it has always done it. It happens after 10 seconds after a cold startup when left to idle, it goes after a few mins. You can hear it better towards the end of the video when the mic is near the wheel arch. Millage is 55k. 2011, A3 S Line 2.0 TDI.

Any advice would be much appriciated!

 

Thank You

20180429_145503.mp4

[Steve Q]

Welcome to the forum Thomas, you'll find the members on here are a friendly and helpful bunch :) 

I've watched/listened to the video more than once and can't point put the noise you are referring to. Sorry. Could you elaborate on the noise? 

Cheers

Steve

[Magnet]

Hello Thomas,

Sorry to hear  (can't hear!) of your problem. Doesn't seem to play on my system but take Steve's opinion on difficulty of picking this up.

Two points if it were mine:- 

If ( and only if) you are handy with the spanners then remove the auxiliary drive belt and check if the noise is still present.

Find a recommended local diesel specialist (your local taxi drivers usually have good recommendations) and entrust a diagnosis to them. 

I think you are wise to be concerned about this since the car is trying to tell you something is wrong!

I would treat its solution with some urgency.

Perhaps you could let us know how you get on Thomas.

Kind regards,

Gareth.

 

[cliffcoggin]

Thomas.

Like Steve I can not hear anything unusual in your link. To pinpoint the noise you could try an old mechanic's trick with a screwdriver stethoscope. Place a large screwdriver tip firmly on various parts of the engine, then hold your ear against the handle. You'll be surprised just how noisy the bearings and pumps can be. I shan't insult your intelligence by warning you of the obvious dangers of this form of testing.

[niedzial1983]

The only thing i can hear is squeek from the belt that probaly needs replacing. Rrcomendation is to change every 60k or 5years with ever comes first .and if you do belt then water pump as well :)

Rest seems fine 

[BEV]

On 03/05/2018 at 11:56 AM, Magnet said:

Hello Thomas,

Sorry to hear  (can't hear!) of your problem. Doesn't seem to play on my system but take Steve's opinion on difficulty of picking this up.

Two points if it were mine:- 

If ( and only if) you are handy with the spanners then remove the auxiliary drive belt and check if the noise is still present.

Find a recommended local diesel specialist (your local taxi drivers usually have good recommendations) and entrust a diagnosis to them. 

I think you are wise to be concerned about this since the car is trying to tell you something is wrong!

I would treat its solution with some urgency.

Perhaps you could let us know how you get on Thomas.

Kind regards,

Gareth.

 

Gareth,

I am handy with a spanner but only with certain tasks, such as breaks. Someone who also knows about cars had a listen in person and thinks its something to do with auxillery belt as well.

Its booked in on Friday so will see.

Thank you for your comments,

Tom

[BEV]

On 03/05/2018 at 10:25 AM, Steve Q said:

Welcome to the forum Thomas, you'll find the members on here are a friendly and helpful bunch :) 

I've watched/listened to the video more than once and can't point put the noise you are referring to. Sorry. Could you elaborate on the noise? 

Cheers

Steve

Thanks for the kind welcome. Its sounds like a squeek. I think i have narrowed it down now and its going in to garage next week.

[BEV]

7 hours ago, niedzial1983 said:

The only thing i can hear is squeek from the belt that probaly needs replacing. Rrcomendation is to change every 60k or 5years with ever comes first .and if you do belt then water pump as well :)

Rest seems fine 

Thank you. Is this the aux belt or cam belt do you think? Its due cam. I am selling it so not planning on spending too much, just need the squeek sorted idealy. 

[BEV]

On 03/05/2018 at 7:45 PM, cliffcoggin said:

Thomas.

Like Steve I can not hear anything unusual in your link. To pinpoint the noise you could try an old mechanic's trick with a screwdriver stethoscope. Place a large screwdriver tip firmly on various parts of the engine, then hold your ear against the handle. You'll be surprised just how noisy the bearings and pumps can be. I shan't insult your intelligence by warning you of the obvious dangers of this form of testing.

I have never though of that, good tip. I shall order a stethoscope and add it to my tools. Thank you

[Magnet]

Hello Thomas,

The  idea of removing the auxiliary belt is to test whether the noise is from anything driven by this belt, so obviously if the noise doesn't go away when the belt is  removed then you know the problem is with the engine/something driven by it - someone is going to let us know whether this is belt or chain  driven -  chain? 

'... Booked in on Friday ...... '... next week' ....... .?? Personally, ( and not having been able to hear this noise) I would have concerns about using this car. If it does indeed have a cam belt, it could , just could be this, and if that goes you can say ta ta to the engine and the car. 

I really hope you get this sorted quickly and without needing to use the car beforehand.

Kind regards,

Gareth.

[Steve Q]

2 hours ago, BEV said:

Thanks for the kind welcome. Its sounds like a squeek. I think i have narrowed it down now and its going in to garage next week.

You're welcome :) 

Glad you've narrowed down the problem, let's hope it's sorted quickly :) 

Cheers

Steve

[niedzial1983]

My bet is cam belt :)

[BEV]

1 hour ago, niedzial1983 said:

My bet is cam belt :)

I shall let you know ...

 

[BEV]

It's now sorted. When taken into the garage it first thought to be something on the aux belt. However the belt was removed and the noise was still there. So attention turned to the Cam belt. I asked them to replace it and the water pump as it was 2 years overdue anyway. The noise was coming from a Cam belt tension arm, and the water pump was leaking anyway. 

Thank you for all your help.

[cliffcoggin]

O well the cam belt was due for a change in a few thousand miles anyway, and it is normal to replace the pump at the same time. I know it was an expensive job, so console yourself with the thought that the consequences of belt failure would have cost you many times what you have just paid. Glad it is sorted and fit for years to come.