Chat Purchased an A2 1.6 Petrol FSI it's gone wrong on the Fuel System and I'm looking to identify part N276

PhilipS

New Member
Hi I purchased an A2 1.6 Petrol FSI with an injector fault on Cylinder 4 and the orange engine light on. I got a mechanic I did not know well who was quite cheap on price to take the whole engine apart after cleaning up the earth behind the passenger front light to replace the injector with a £20 second hand one. This made the engine run better but the engine light was still on. So by that time I was able to take the car to my usual mechanic who has the full diagnostic system for the car. This mechanic re[paired the fuel pressure sensor. Some time after that about 50 miles after driving the car as fast as it would go from zero to about 50-60 miles an hour and then stopping. The car started bunny hoping down the road on a dual carriageway. In first second and third gears with the accelerator peddle on the floor the revs would go from 4000 to 1000 and then back up with the car losing power. I took it back to the mechanic I know. He said he plugged it into the diagnostics again and it gave an Audi part code N276. This part was £440 from Audi and not available. This is something you guys talk a lot about in your forums which is why I've joined. My problem is that over this weekend I've tried to find out what that part is which seems to be a pressure regulator valve that on most FSI cars would be on the high pressure fuel pump. But what I've purchased and I have checked it fits the car does not look like that at all and it cost £19.95. Has anyone got a picture of what this component should look like please? Phil
 

steve_c

Member
Has anyone got a picture of what this component should look like please?
There's an illustration in the Audi Workshop Manual, reproduced and discussed in this post:

See the original worshop manual page here:
 

steve_c

Member
If you haven't already done so, it's worth paying £2 to upgrade your membership by following the instructions here:

Then you'll have access to the market and will be able to look for a used (but fully working) N276 from one of our regular dismantlers.

As an aside, do you realise that the FSI should always be run on fuel that is 98 RON or higher?
 

Andrew

A2OC Donor
Hi,

Welcome.

N276 is not a part number, but part of an VAG labelling system to identify components in a functional context. Not sure but possibly item 11, part number 036906336, in


If you Google 'Audi 036906336' you will see lots of pictures. The £440 your mechanic quotes seems about right but must be very recently discontinued as it is still available from this reputable German supplier.


A far more economical option is used, contact @A2Steve he is currently recycling a FSI, or @Clackers and it will cost a lot, lot, lot, lot, ....less.

As I said I am not sure.

The best thing you can do before you do anything is ask your mechanic for copy of the scan output, VCDS I assume, and post it here, somebody might have some insight.

Andy
 
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A2Steve

Member
Hi,

Welcome.

N276 is not a part number, but part of an VAG labelling system to identify components in a functional context. Not sure but possibly item 11, part number 036906336, in


If you Google 'Audi 036906336' you will see lots of pictures. The £440 your mechanic quotes seems about right but must be very recently discontinued as it is still available from this reputable German supplier.


A far more economical option is used, contact @A2Steve he is currently recycling a FSI, or @Clackers and it will cost a lot, lot, lot, lot, ....less.

As I said I am not sure.

The best thing you can do before you do anything is ask your mechanic for copy of the scan output, VCDS I assume, and post it here, somebody might have some insight.

Andy

Shouldn’t be a problem getting this for you although most of that cost quoted by the mechanic will be for Labour I would have thought based on its location and amount of work involved in removing the upper inlet first.
 

PlasticMac

Member
Hi,

Welcome.

N276 is not a part number, but part of an VAG labelling system to identify components in a functional context. Not sure but possibly item 11, part number 036906336, in


If you Google 'Audi 036906336' you will see lots of pictures. The £440 your mechanic quotes seems about right but must be very recently discontinued as it is still available from this reputable German supplier.


A far more economical option is used, contact @A2Steve he is currently recycling a FSI, or @Clackers and it will cost a lot, lot, lot, lot, ....less.

As I said I am not sure.

The best thing you can do before you do anything is ask your mechanic for copy of the scan output, VCDS I assume, and post it here, somebody might have some insight.

Andy
Is it definitely VCDS scan? My guess is that it's not.
If I'm right, then getting a genuine VCDS scan, as opposed to a generic scanner should be your priority, before buying parts.
Worth a look here:
Mac.
 

Andrew

A2OC Donor
Shouldn’t be a problem getting this for you although most of that cost quoted by the mechanic will be for Labour I would have thought based on its location and amount of work involved in removing the upper inlet first.
Surprisingly I think the £440 is just the cost of a new part. The parts website I linked above and another I looked at average roughly €410 new so I could quite believe Audi would want £440. You are right there is then labour + VAT on top.

Strange as there is little history of this part failing.

Andy
 
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Andrew

A2OC Donor
Is it definitely VCDS scan? My guess is that it's not.
If I'm right, then getting a genuine VCDS scan, as opposed to a generic scanner should be your priority, before buying parts.
Worth a look here:
Mac.
I agree, a VCDS scan is in order.

Can't help thinking the high pressure pump is lurking in the background.

Over to Phillip.

Andy
 
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PhilipS

New Member
Thanks Guys that is really helpful.....the good mechanic who I know well and has very successfully worked on other complex cars for me e.g. 1997 BMW 540i gave me code N276 used Windows based VAG/VAS Emulator Running Windows 10 x64 VCDS Version Release 21.3.0 (x64) Data version 20210226 DS325.0 www.Ross-Tech.com
I can buy the part 036906336 used for £79 @A2Steve how much would the High Pressure Fuel pump be please if it does turn out to be that and does 036906336 connect to the High Pressure Fuel pump please?
 

A2Steve

Member
Thanks Guys that is really helpful.....the good mechanic who I know well and has very successfully worked on other complex cars for me e.g. 1997 BMW 540i gave me code N276 used Windows based VAG/VAS Emulator Running Windows 10 x64 VCDS Version Release 21.3.0 (x64) Data version 20210226 DS325.0 www.Ross-Tech.com
I can buy the part 036906336 used for £79 @A2Steve how much would the High Pressure Fuel pump be please if it does turn out to be that and does 036906336 connect to the High Pressure Fuel pump please?

The high pressure fuel pump off my current breaker has sold sorry, but I know @Clackers was advertising one yesterday.

No, 036906336 does not connect to the HPFP, It's mounted at the top of the lower inlet and needs the upper inlet manifold to be removed before you can gain access. I can do one a lot cheaper than £79 but it won't be until next week.
 

PhilipS

New Member
@Clackers that would be great if it comes down to that. The mechanic should try fix the A2 with the parts I've got this week or next. How much do you want for the high pressure fuel pump please if it does come down to the high pressure fuel pump and we are talking about the A2 1.6 Petrol FSI pump are we please?
 

Clackers

Member
Hpfp are only fitted to the fsi, so yes it's the correct part for you, can do it for £90 posted...keep in touch if you need it, happy to help wherever.
Andy
 

PhilipS

New Member
@Clackers yes thanks £90 is fine I'm very tempted to buy it now simply because a lot of peoples dialog on this forum leads to this very obviously high stress component and of course this very experienced mechanic is going to take the engine apart again anyway. How fast could you get it to me and do I just pay the £2 to get to the marketplace to buy it from you please? Phil
 

Clackers

Member
@Clackers yes thanks £90 is fine I'm very tempted to buy it now simply because a lot of peoples dialog on this forum leads to this very obviously high stress component and of course this very experienced mechanic is going to take the engine apart again anyway. How fast could you get it to me and do I just pay the £2 to get to the marketplace to buy it from you please? Phil
Inbox sent.

Andy
 

nod

Member
@Clackers yes thanks £90 is fine I'm very tempted to buy it now simply because a lot of peoples dialog on this forum leads to this very obviously high stress component and of course this very experienced mechanic is going to take the engine apart again anyway. How fast could you get it to me and do I just pay the £2 to get to the marketplace to buy it from you please? Phil
If a2Steve or clackers has an inlet manifold with the sensors and actuator on buy that too as that may help with the issue.
The part you are changing above may work, if it does I'd be interested to hear.
. I had an fsi with similar fault which I never fixed, lost fuel pressure when the car got up to temperature and it just wouldn't go. In the end I thought I had an electrical fault as I changed every part of the fuel system without success.
One of the first things to ensure is that the fuel filter has been changed, often overlooked on fsi's and can clog up.
Cheers
 

PhilipS

New Member
@Andrew Hi Andy thanks for what you said here you said

''Can't help thinking the high pressure pump is lurking in the background.''

Yes I'm very worried about that in terms of paying the good mechanic to take the engine apart try all these parts then re assembling the engine and finding it was the high pressure fuel pump all along. How frequently is it just the high pressure fuel pump do you think please? The person I got the car from was using standard unleaded for at least a year and when the first mechanic changed the blocked injector he also changed the fuel filter. He said that the fuel filter he took off the car looked like it was the original Audi filter from when the car was new. Even though the car has full service history. The car is not that coked up inside I'm told but all these components including the high pressure pump could be just blocked up with fuel deposits
 

Andrew

A2OC Donor
@PhilipS,

To answer your question, there always seems to be a demand for used HPFPs, which implies it does fail regularly.

The thing with the HPFP is it easily accessible sitting on top at the right hand end of the camshaft and esy to swap. (Anybody correct me if I am wrong). I suspect this is why it is the first port of call for fixing a fuel rail fault for many, attracting a minor labour charge and if it turns out it is not to be the problem the HPFP can be sold on.

Very much depends on your experienced mechanic's opinion, he has the diagnostics/ measuring block data, mind you it would be interesting to know how many A2 FSIs, engine code BAD, your mechanic has worked on, you might be surprised by the answer.

Andy
 
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