2005 A3 TDI - pile of fault codes

[timcoupe]

Hi All,

I have a 2005 A3 2.0 TDI DSG - I had friend do a report on error codes for paranoia.

I'm surprised to find this little lot, especially as it's just been in for a service and I specifically asked them to check for any faults. I was told there were none.

Any help on any of these codes would be welcome. For information, I do have a problem with the heater not blowing out hot when aimed at face (I have climate), and I am aware of the intermittent bulb problem on the rear left. Oh, and my Symphony II decided to pack up yesterday


Thanks!



Wednesday,19,August,2009,12:52:51:26365
VCDS Version: Release 805.1
Data version: 20080823



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 1K0
Scan: 01 02 03 08 09 15 16 17 19 25 42 44 46 52 55 56 62 72 7D

VIN: WAUZZZ8P46A021999 Mileage: 171340km/106465miles

00-Steering Angle Sensor -- Status: OK 0000
01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: Malfunction 0010
03-ABS Brakes -- Status: Malfunction 0010
08-Auto HVAC -- Status: Sporadic communication error 1000
09-Cent. Elect. -- Status: Malfunction 0010
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
52-Door Elect, Pass. -- Status: OK 0000
55-Xenon Range -- Status: OK 0000
56-Radio -- Status: Cannot be reached 1100
62-Door,Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
7D-Aux. Heat -- Status: Malfunction 0010

-------------------------------------------------------------------------------
Address 01: Engine Labels: 03G-906-016-BKD.lbl
Part No SW: 03G 906 016 DT HW: 028 101 189 2
Component: R4 2,0L EDC 0000AG 7000
Revision: 12345678 Serial number: AUX7Z0E5FNL0QR
Coding: 0000078
Shop #: WSC 06314 000 00000

2 Faults Found
16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
Freeze Frame:
RPM: 2772 /min
Torque: 198.0 Nm
Speed: 59.0 km/h
Load: 58.0 %
Voltage: 14.21 V
Bin. Bits: 11000000
Absolute Pres.: 1774.8 mbar
Absolute Pres.: 2407.2 mbar

18043 - Powertrain Data Bus: Missing Message from A/C Controller
P1635 - 000 - - - Intermittent
Freeze Frame:
RPM: 0 /min
Torque: 6.0 Nm
Speed: 0.0 km/h
Load: 0.0 %
Voltage: 12.31 V
Bin. Bits: 00000100
Bin. Bits: 00000000
(no units): 144.0

Readiness: 0 0 0 0 0

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 02E-300-0xx.lbl
Part No SW: 02E 300 042 F HW: 02E 927 770 AE
Component: GSG DSG 070 0920
Revision: 00007000 Serial number: 00000506070461
Coding: 0000020
Shop #: WSC 06314 000 00000

1 Fault Found
28775 - No Communication with Gear Selector Module
U0103 - 000 - - - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 0
Reset counter: 39
Mileage: 171335 km
Time Indication: 0
Date: 2009.08.18
Time: 17:58:25


-------------------------------------------------------------------------------
Address 03: ABS Brakes Labels: 1K0-907-379-MK60-F.lbl
Part No SW: 1K0 907 379 Q HW: 1K0 907 379 Q
Component: ESP FRONT MK60 0102
Revision: 00T12001
Coding: 0023170
Shop #: WSC 00468 210 01439

2 Faults Found
01314 - Engine Control Module
013 - Check DTC Memory - Intermittent
01309 - Power Steering Control Module (J500)
008 - Implausible Signal

-------------------------------------------------------------------------------
Address 08: Auto HVAC Labels: 8P0-820-043.lbl
Part No SW: 8P0 820 043 L HW: 8P0 820 043 L
Component: KlimavollautomatH16 0200
Revision: 018046 Serial number: 8P0820043L
Shop #: WSC 06314 000 00000

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: 8P0-907-279-23-H.lbl
Part No SW: 8P0 907 279 F HW: 8P0 907 279 F
Component: Bordnetz-SG H36 1201
Revision: 00H36000 Serial number: 00000002007924
Coding: 058A4F00B214100000160000160000000008FE175C0200
Shop #: WSC 06314 000 08192

Part No: 8P2 955 119 B
Component: Wischer AU350 H01 0130
Coding: 00062736
Shop #: WSC 06314

3 Faults Found
00987 - Lamp for Brake Light; Left (M9)
012 - Electrical Fault in Circuit - Intermittent
Freeze Frame:
Fault Status: 00101100
Fault Priority: 1
Fault Frequency: 1
Reset counter: 137
Mileage: 170951 km
Time Indication: 0
Date: 2009.08.08
Time: 17:32:00

Freeze Frame:
ON
Voltage: 13.95 V
ON
ON
OFF
OFF
ON

01320 - Control Module for Climatronic (J255)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 158
Mileage: 171335 km
Time Indication: 0
Date: 2009.08.18
Time: 17:58:00

Freeze Frame:
ON
Voltage: 12.35 V
ON
ON
OFF
OFF
OFF

00926 - Terminal 30
011 - Open Circuit - Intermittent
Freeze Frame:
Fault Status: 00101011
Fault Priority: 4
Fault Frequency: 1
Reset counter: 158
Mileage: 171335 km
Time Indication: 0
Date: 2009.08.18
Time: 17:52:00

Freeze Frame:
OFF
Voltage: 5.80 V
OFF
ON
OFF
OFF
OFF


-------------------------------------------------------------------------------
Address 15: Airbags Labels: 8P0-959-655-94.lbl
Part No SW: 8P0 959 655 C HW: 8P0 959 655 C
Component: Airbag 9.41 H10 3230
Revision: 91H10323 Serial number: 00362003GJY/
Coding: 0074622
Shop #: WSC 06314 000 00000

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 8P0-953-549.lbl
Part No SW: 8P0 953 549 E HW: 8P0 953 549 E
Component: Lenks‰ulenmodul H34 0070
Coding: 0011112
Shop #: WSC 06314 000 00000

Part No: XXXXXXXXXXX
Component: Lenkradmodul H03 0080

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments Labels: 8P0-920-xxx-17-MY7.lbl
Part No SW: 8P0 920 981 B HW: 8P0 920 981 B
Component: KOMBIINSTR. VDO H80 0400
Revision: D02 Serial number: 2245ED02000804
Coding: 0000443
Shop #: WSC 00468 210 84739

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 1K0-907-530.lbl
Part No SW: 1K0 907 530 F HW: 1K0 907 951
Component: Gateway H10 0120
Revision: H10 Serial number: 280010561083EE
Coding: 7F3F0B40072103
Shop #: WSC 06314 000 00000

3 Faults Found
01305 - Databus for Infotainment
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 1
Fault Frequency: 65
Reset counter: 120
Mileage: 171287 km
Time Indication: 0
Date: 2009.08.18
Time: 09:54:33

01304 - Radio
004 - No Signal/Communication
Freeze Frame:
Fault Status: 01100100
Fault Priority: 2
Fault Frequency: 65
Reset counter: 120
Mileage: 171287 km
Time Indication: 0
Date: 2009.08.18
Time: 09:54:35

01320 - Control Module for Climatronic (J255)
004 - No Signal/Communication - Intermittent
Freeze Frame:
Fault Status: 00100100
Fault Priority: 2
Fault Frequency: 1
Reset counter: 158
Mileage: 171335 km
Time Indication: 0
Date: 2009.08.18
Time: 17:58:07


-------------------------------------------------------------------------------
Address 25: Immobilizer Labels: 1K0-920-xxx-25.lbl
Part No SW: 8P0 920 981 B HW: 8P0 920 981 B
Component: KOMBIINSTR. VDO H80 0400
Revision: D02 Serial number: AUX7Z0E5FNL0QR
Shop #: WSC 00000 000 00000

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver Labels: 8P0-959-801-MIN.lbl
Part No: 8P0 959 801 H
Component: Tuer-SG 020 0050
Coding: 0000760
Shop #: WSC 06314 000 00000

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-14x.lbl
Part No: 1K2 909 144 K
Component: EPS_ZFLS Kl.0 D06 1701
Shop #: WSC 00000 000 00000

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. Labels: 8P0-959-433.lbl
Part No: 8P0 959 433 C
Component: KSG H04 0050
Coding: 188000186D088505489FC63300
Shop #: WSC 06314 000 00000

Part No: 1K0 951 605 C
Component: LIN BACKUP HORN H03 1301

Part No: 1K0 907 719 C
Component: Neigungssensor 005 0003

Part No: 8P0 951 177
Component: Innenraumueberw.H03 0020

3 Faults Found
01320 - Control Module for Climatronic (J255)
004 - No Signal/Communication - Intermittent
00352 - Terminal 30A
011 - Open Circuit - Intermittent
00926 - Terminal 30
011 - Open Circuit - Intermittent

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. Labels: 8P0-959-802-MIN.lbl
Part No: 8P0 959 802 H
Component: Tuer-SG 020 0050
Coding: 0000760
Shop #: WSC 06314 000 00000

No fault code found.

-------------------------------------------------------------------------------
Address 55: Xenon Range Labels: 8P0-907-357.lbl
Part No: 8P0 907 357 C
Component: Dynamische LWR H01 0010
Revision: 00000000 Serial number:
Coding: 0000001
Shop #: WSC 06314 000 00000

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio
Cannot be reached

-------------------------------------------------------------------------------
Address 62: Door,Rear Left Labels: 8P4-959-801.lbl
Part No: 8P4 959 801 B
Component: Tuer-SG 009 0030
Coding: 0000216
Shop #: WSC 06314 000 00000

No fault code found.

 

[bearthebruce]

The communications errors occured when the battery voltage dropped to about 12.3 volts. Low voltage on the battery often causes these Comm errors. I would say that you should clear those and see if they come back.

The other errors seem reasonably straight forward. Clear all DTCs and then post what returns.

 

[timcoupe]

will do - I'll arrange for them to be cleared and let it run for a week before posting the results.

So, is the battery potentially unhealthy?

Many thanks!

 

[bearthebruce]

Potentially - yes. But could have been some time ago. Did you leave the lights on or something at some point? The errors could be from that.

 

[NHN]

1st thing I want to advise & take this very very seriously given car mileage & known issues, is the overboost issue (others are minor atm) as below is exactly what I have had recenly & this culminated in a blown turbo mate, your errors are identical to mine so be warned get vagcom on it daily or more to check if this keeps returning & have you had any limp modes as yet where you lose about 80% of your power whilst driving.

Take this warning seriously or you'll possibly have a nice 2-3k bill to repair if you cant do yourself that is, get the codes cleared & check the engine codes daily for any repeat of the fault, it tends to occur if you give it some pedal on a hill etc, take heed as it could go anytime if its a turbo issue or the N75 Valve (solenoid valve block possibly on your car), it maybe the valve block which houses a number of different valves which on other cars the N75 is on its own or it maybe the turbo isnt working properly, the N75 might be stopping the wastegate from working properly thus having more boost than you should on the turbo, if it continues to overboost the actual impeller could snap as mine did & thus new turbo, hell of a **** job to do & expensive.

Clear the faults asap & then scan again after a short drive, try not to thrash it either, just give it a lite run & see if it throws any faults, try on a hill & let us know if it goes into limp mode.

16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
Freeze Frame:
RPM: 2772 /min
Torque: 198.0 Nm
Speed: 59.0 km/h
Load: 58.0 %
Voltage: 14.21 V
Bin. Bits: 11000000
Absolute Pres.: 1774.8 mbar
Absolute Pres.: 2407.2 mbar

 

[paddy]

Are the freeze frame figures the point at which the fault was recorded ie: at 198Nm ?

 

[timcoupe]

Potentially - yes. But could have been some time ago. Did you leave the lights on or something at some point? The errors could be from that.

Not sure anything ever got left on, but hey, the wife drives it mainly so could have. I'll keep monitoring as I don't want to have to buy a new battery if it is just down to an avoidable drain.

Thanks!

 

[timcoupe]

1st thing I want to advise & take this very very seriously given car mileage & known issues, is the overboost issue (others are minor atm) as below is exactly what I have had recenly & this culminated in a blown turbo mate, your errors are identical to mine so be warned get vagcom on it daily or more to check if this keeps returning & have you had any limp modes as yet where you lose about 80% of your power whilst driving.

Take this warning seriously or you'll possibly have a nice 2-3k bill to repair if you cant do yourself that is, get the codes cleared & check the engine codes daily for any repeat of the fault, it tends to occur if you give it some pedal on a hill etc, take heed as it could go anytime if its a turbo issue or the N75 Valve (solenoid valve block possibly on your car), it maybe the valve block which houses a number of different valves which on other cars the N75 is on its own or it maybe the turbo isnt working properly, the N75 might be stopping the wastegate from working properly thus having more boost than you should on the turbo, if it continues to overboost the actual impeller could snap as mine did & thus new turbo, hell of a **** job to do & expensive.

Clear the faults asap & then scan again after a short drive, try not to thrash it either, just give it a lite run & see if it throws any faults, try on a hill & let us know if it goes into limp mode.

16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
Freeze Frame:
RPM: 2772 /min
Torque: 198.0 Nm
Speed: 59.0 km/h
Load: 58.0 %
Voltage: 14.21 V
Bin. Bits: 11000000
Absolute Pres.: 1774.8 mbar
Absolute Pres.: 2407.2 mbar

Thanks NHN, you are right in that I have had the car go into limp mode (can't drive above 40 and the RPM is limited), also, it has ALWAYS happened when going up hills (we cannot avoid this as we live in a hilly part of the world).

So, I'll arrange to get another check done - what do you suggest, cold start going up the same hill to see if it triggers limp mode?

Should I take this whole thread into an independant VAG garage - would that suffice in helping them diagnose, or should I be doing something different? Is there anything I can check / clean / otherwise on the car?

Thanks for the help!

 

[timcoupe]

OK, I've managed to get another scan done tonight - I've only pasted the 'engine' fault as this is the one to worry about right now.

The new 'fault'.

Address 01: Engine Labels: 03G-906-016-BKD.lbl
Part No SW: 03G 906 016 DT HW: 028 101 189 2
Component: R4 2,0L EDC 0000AG 7000
Revision: 12345678 Serial number: AUX7Z0E5FNL0QR
Coding: 0000078
Shop #: WSC 06314 000 00000

1 Fault Found
16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
Freeze Frame:
RPM: 2520 /min
Torque: 236.0 Nm
Speed: 78.0 km/h
Load: 64.3 %
Voltage: 14.29 V
Bin. Bits: 11000000
Absolute Pres.: 2060.4 mbar
Absolute Pres.: 2590.8 mbar

Readiness: 0 0 0 0 0

Thanks!

 

[NHN]

Thanks NHN, you are right in that I have had the car go into limp mode (can't drive above 40 and the RPM is limited), also, it has ALWAYS happened when going up hills (we cannot avoid this as we live in a hilly part of the world).

So, I'll arrange to get another check done - what do you suggest, cold start going up the same hill to see if it triggers limp mode?

Should I take this whole thread into an independant VAG garage - would that suffice in helping them diagnose, or should I be doing something different? Is there anything I can check / clean / otherwise on the car?

Thanks for the help!

OK, I've managed to get another scan done tonight - I've only pasted the 'engine' fault as this is the one to worry about right now.

The new 'fault'.

Address 01: Engine Labels: 03G-906-016-BKD.lbl
Part No SW: 03G 906 016 DT HW: 028 101 189 2
Component: R4 2,0L EDC 0000AG 7000
Revision: 12345678 Serial number: AUX7Z0E5FNL0QR
Coding: 0000078
Shop #: WSC 06314 000 00000

1 Fault Found
16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
Freeze Frame:
RPM: 2520 /min
Torque: 236.0 Nm
Speed: 78.0 km/h
Load: 64.3 %
Voltage: 14.29 V
Bin. Bits: 11000000
Absolute Pres.: 2060.4 mbar
Absolute Pres.: 2590.8 mbar

Readiness: 0 0 0 0 0

Thanks!

Well my 1st advice is dont drive it tbh atm as it has all the symptoms of a turbo gonna go at some point & trust me you dont want that as I'm currently fitting my new one, halfway done today.

It is probably the wastegate not working properly thus creating to much boost which cant be controlled or alleviated & I would hazard a guess if yours is a BKD engine code it could be the solenoid valve block which houses the N75 valve, this would be my 1st port of call as its only £130 where as turbo is 1-2k to remove/fit, you can also do the solenoid valve block yourself, its fitted just under the wiper lip it has 6 small tubes coming from the left side of it which has some clips to release the tubes & think torx headed bolt to remove the block, simple undo & swap, then test if the code comes back.

If this doesnt resolve & be warned dont over do it, then its possibly turbo issues namely VNT vane sticking problem, this will require a serious garage visit unless you're happy to do mechanics like I am doing given £100 an hour audi charges are a no no for me.

If in doubt then take it to a garage asap with notes as per here & dont be taken for a ride as its so easy on these matters, dont go fast even if takes hour to garage, its better than the bill to repair as if turbo blows then oil ****** all in air system, not good.

Let me know what issue is on yours as good to remember for future reference.

 

[timcoupe]

OK, bit of an update.

I've had the car into a specialist and took a printout of this thread.

The engineer took the the car for a drive and replicated the fault, had the car go into limp mode and suggested a replacement EGR valve & Throttle valve which I have had done - cost to me, £400'ish incl fitting.

Got the car back, left work tonight and guess what...the car went into limp mode again. I spoke to the garage and they suggested next port of call being the Air Flow Meter. Note that he has not suggested replacing the solenoid valve block even though he agreed that could be a problem before they started work on my car.

Not sure what to do now, do I replace the solenoid valve block myself and see how it goes from here? Or, get the Air Flow Meter swapped out.. either way, it could still be money spent on no cure as ultimately it could be the turbo...

 

[NHN]

Tim, dont take this the wrong way & its not meant to be nasty or mr know it all, but I did advise it would be best to do the valve block 1st given the cost is most likely the lowest out of all that it could be & diy job at that mate, pity cause looks like they took you for that ride unfortunately mate, £400 for something that doesnt even fix the issue, also the egr/intake flap could of been a diy job aswell mate with our advice, I cant see the maf being at fault cause I fitted a new one before this fault occurred & didnt happen until I did a long drive to italy.

I cant say for sure but I would do the block anyway as its now superseded to an E version & I hazard a guess I will be doing mine after taking my old turbo apart & cant see any issues with the vanes, so its leading to be the N75 solenoid block which did make some noises anyway which wernt normal, did they say it would fix the issue or did they say we can try this?

Cause if they said its this & it wasnt then they should return it & not charge you & find the real cause.

 

[timcoupe]

No offence taken NHN. When I discussed the problem with the garage, they sounded convincing on the approach to take and to be fair, i've had work done from them in the past that gives confidence they know what they are on about. They did also make it clear it was trial and error as there were many contributors to the problem. I'm going to get the valve you mention done anyhow. It looks easy to fit so I'll do it myself, just need to check my local audi dealer has it in.

I'll post up again when I've swapped it over.

Thanks!

 

[heeman10]

What a shame to be £400 down and on the brink of paying out for a MAF sensor too You've been some great, cost-saving, experienced advice from NHN here tim, I'd take it and be thankful...and richer! Sounds as though you've been fortunate enough to identify a major issue before it's too late!

 

[NHN]

No offence taken NHN. When I discussed the problem with the garage, they sounded convincing on the approach to take and to be fair, i've had work done from them in the past that gives confidence they know what they are on about. They did also make it clear it was trial and error as there were many contributors to the problem. I'm going to get the valve you mention done anyhow. It looks easy to fit so I'll do it myself, just need to check my local audi dealer has it in.

I'll post up again when I've swapped it over.

Thanks!

No worries, now I cant guarantee its the valve block but its one I would of tested 1st before anything else given the RT error code refers to the N75 valve, it could be the wastegate/vanes on the turbo, but thats 1k cost, hey no real loss if it doesnt resolve & also think the labour would be £130 knowing some garages, so nothing to lose, dont scald me if it doenst resolve though as I have warned it could be few things, just advising in order of cost.

You could stretch behind the back of the engine mate & test the wastegate lever works ok which usually would determine if the vanes are moving unless its broken inside which I very much doubt or it would rattle when driving, make sure you do this on a cold engine as its extremely hot as you can imagine, get a good torch & if need be remove the battery, casing & air tubes in way to see behind, should be able to reach behind though to test actuator, do whilst changing the valve block, its easy overall & just take time & remember where all went, you cant go wrong tbh given its all self-insanitory lol

 

[timcoupe]

Another update.

Managed to get hold of a 'VENT BLOCK' part id: 6Q0 906 625 E from Audi Sheffield this morning for £138. Fitted it all OK, noticed that the filters were a little 'black' on the one I removed. I also applied some contact cleaner to the MAF for good measure, although it looked like brand new so didn't really need anything doing to it.

Took the car out, nice and cold from leaving it overnight, floored it up the hill and straight back into limp mode. So, still at a loss, BUT, at least things are being ruled out one by one, I have to remain positive whilst my £££££'s are pouring away.

So, to summarise, I've replaced the Vent Block (N75), EGR valve & Throttle valve.

Not sure where this leaves me now - Ultimately it may end up as a turbo swap but hopefully the AA warranty I've got will cover that (it does state very clearly that it's covered, although I'm sure they will do anything to get out of it).

New 'fault'


Address 01: Engine
Control Module Part Number: 03G 906 016 DT
Component and/or Version: R4 2,0L EDC 0000AG 7000
Software Coding: 0000078
Work Shop Code: WSC 06314
1 Fault Found

16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
Freeze Frame
RPM: 3528 /min
Torque: 318.0 Nm
Speed: 75.0 km/h
Load: 100.0 %
Voltage: 14.21 V
Bin. Bits: 11000000
Absolute Pres.: 2182.8 mbar
Absolute Pres.: 2590.8 mbar


Readiness: 0 0 0 0 0


Any further thoughts?

Thanks!

Tim.

 

[NHN]

Solenoid Valve Block mate, not vent block, trust me.

Anyway I would check wastegate actuator now tbh & also check boost levels & I would hazard a guess turbo of & vane clean would be next, as long as you havnt bent any fins yet with overboost which has somehow bent the impeller thus fins are rubbing against the sides, should see my old internals of turbo, god what a mess the fins are, bit lucky tbh, risky driving atm tbh, its not mapped is it.

I really cant see the maf effecting this cause it doesnt control boost I dont think, it has got me thinking now though given mine was brand new & then on long drive had faults which on old maf didnt have, urmmmm food for thought, still cant see it but we'll see when I run her up again if it returns.

 

[timcoupe]

Appreciate all the advice!

My car is back in at the garage for some replacement bushes on Wendesday, so I'll get them to have a look at the wastegate actuator and any other 'pipeage' that could have leaks (Although I'll be annoyed if they haven't looked at this already).

I've been doing a bit more research and have found people mentioning a product called 'Innotec Turbo Cleaner' http://www.innotecworld.com/c-1064-turbo-clean-set.aspx

Seems some of the 'PD' engine turbos have good results from this, but I'm unsure as to whether the turbo on mine is similar to that on a PD and if the product would work equally well, but I guess it would.

There is a place call 'PSI Tunining' in Newcastle Under Lyme that does the Innotec service for around £100 all in. I am going to give them a call on Tuesday to discuss the issues with my car and see if it is worth trying. Failing that, I'll just try and push the AA to put a new turbo on under warranty and see where that gets me.

 

[NHN]

TBH not sure if it would clean it enough to not come back very quickly given the state of my internals, but for £100 anythings worth a go mate, but age of car I'd be more inclined to remove turbo & get it serviced/cleaned & there are number of companies that can do that for you.

Why havnt you claimed on warranty anyway?

 

[timcoupe]

I spoke to the AA warranties regarding the EGR & throttle valves, unsurprisingly, they aren't covered.

Wanted to to hit the Turbo last as I didn't want to give the warranty company the excuse of 'try this, try that'. At least I can honestly say (and backup with receipts) that other 'potential' causes of the problem have been replaced and the Turbo is the final likely culprit.

I'm going to push hard for a new turbo on Wednesday when I'm back at the garage, but then try the innotec cleaner route if they don't agree a replacement.

Hopefully coming to the end of this saga soon...

 

[NHN]

Address 01: Engine
Control Module Part Number: 03G 906 016 DT
Component and/or Version: R4 2,0L EDC 0000AG 7000
Software Coding: 0000078
Work Shop Code: WSC 06314
1 Fault Found

16618 - Boost Pressure Regulation: Limit Exceeded (Overboost Condition)
P0234 - 000 - -
Freeze Frame
RPM: 3528 /min
Torque: 318.0 Nm
Speed: 75.0 km/h
Load: 100.0 %
Voltage: 14.21 V
Bin. Bits: 11000000
Absolute Pres.: 2182.8 mbar
Absolute Pres.: 2590.8 mbar

Ok learning new things daily, from my understanding as I couldnt see why we had 2 readings in the errors & have to confirm with RT tomorrow, but think the 1st boost figures are what your ecu is requesting & then 2nd figures are what its boosting which is why its overboosting & I suspect its turbo from this given solenoid block has been replaced, reckon vanes are sticking thus to much boost even though ecu is requesting less, stands to reason now mate, took me fair bit reading & asking questions but curently thats my feeling.

 

[timcoupe]

Yes, that makes sense.

I've got a new turbo being put on under warranty next Thursday. I'll post the results up, hopefully with good news!

Cheers

 

[NHN]

Thats a result then cause it isnt cheap, are they using audi or your garage to do, if your garage make sure the guy follows elsawin recommended replacement parts like cat seal, new gaskets, nuts, bolts etc, they all must be replaced as per the recommendations & new oil & filter is advisable aswell tbh if old turbo has fin damage, get him to check the old turbo fins to see if any have broken of as yet, also make sure you keep the old turbo as you could get it cleaned & resell tbh if the fins arent damaged, even sending away to be upgraded & resell might be another option then recoup some costs as hybrids sell for fair bit.

Also ask him to check the charge air system for any oil/fin bits if the turbo has been damaged already, just precautions as I've now finished mine & trust me I had to remove the intercooler to clean, which needed rad removal & fan system, remove all coolant & renew, hell of a job overall but well worth I hope (crosses fingers) lol, runs ok now so we'll see after additional custom map if it goes even better.

 

[timcoupe]

Thanks for the info, I'll make sure to ask about the turbo condition when it comes off.

I've got the specialist to do the work as the AA warranty will only cover a max labour
charge of £39.60 ph and it's a 3.5 hour job (according to some guidelines..) I'll double check that all the relevant bits are going to be replaced.

I'll post up the results on Thursday...fingers crossed...

 

[NHN]

I wouldnt ask them mate, I'd make sure you can look at the old turbo yourself & make sure you take it away with you as these garages are notorious for keeping parts worthwhile to them.

Yeah warranties hourly limits are ridiculous huh especially when audi are £100 an hour these days so you have to go with back street ones & risk unless you know them well huh.

 

[timcoupe]

Had the new turbo fitted yesterday, had to wait until this morning to have the car nice and cold.

Pleased to say that the fault has now gone and the car doesn't go into limp mode under the same test circumstances as before.. Fingers crossed it's all sorted!!

Thanks for all the help on this.

Tim.

 

[NHN]

Sticking vanes then mate, only thing could be tbh, glad all sorted, did you get/see old turbo?

 

[timcoupe]

Got the old turbo, just looks, dirty...

Still working fine after a week, so think it's reasonable to say sticking vanes was the issue.

 

[NHN]

Good good, glad its sorted, I intend to follow these turbo issues up with audi as it seems to be a common thing.

You could get it cleaned mate & upgraded to a hybrid & sell it on, maybe make back some dough as they wouldnt need to pourchase the turbo then upgrade it as you ahve your own, chat with turbodynamics or google for others.

Did you want Vagcom mate as replied to your PM