AUDI A4 AVANT PROBLEMS

r.curt

New Member
Good Afternoon,

Firstly I would like to say I’m very excited to have finally figured my way round to joining a forum lol

I have a 56 plate and I love it! I have a few problems with it and I’m not sure on how to go about fixing these. Having visited many garages and no one seems to really have the answer onit and I’m really now becoming frustrated and upset that I can’t give my car the love and attention I think it deserves

•The major problem is that I have no hot/warm air coming from the AC vents, other than an odd blast now and again from the air from the engine. This morning I woke up to inches of snow so you can imagine how excited I was to drive to work this morning!

•My cruise control (when purchasing 2 years ago) I vaguely remember the seller saying he installed it himself it only works intermittently either not working until you turn off the ignition and start again or cuts out while using it and won’t work until again you turn off the ignition and back on

•Every so often the lights on my dash go completely out for a milli second if that and straight back on again?

• My rear drivers side door sometimes locks sometimes doesn’t sometimes unlocks sometimes doesn’t (basically does whatever the f**k it feels like doing

•Lastly my key fob isn’t alway very responsive or maybe the locking system isn’t alway very responsive to the key fob lol

Any serious help or suggestions on any of these would be very very much appreciated

Thanks in advance
 

I'm Just Rob.

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Welcome to ASN, your go to place for all things Audi and more.

The problems you are outlining are all standard-issue A4 B7 problems and some will be connected to module issues or wiring issues.
Before you rush into ripping the car apart, have you considered getting a full diag scan to see what's really going on, if you haven't then I'd advise it, there's plenty of vcds members all over the country so I expect you can find one nearby to your location.

The Heating issue can be an airlock at your heater matrix, it's not always that but if you have no issues with the car engine getting up to temp etc then try bleeding the cooling system first and see what happens, its a very common issue and easy to address before looking at the stat etc.

Cruise control can be a bit iffy when not installed properly, vcds will ping up any issues there and will let you recode it properly if that is required.
the key fob may need new batteries or resynced to the car
rear door locking can be a damaged wire in the loom that runs into the door from the pillar, they become brittle and break if its not that then its a module issue, same applies here with vcds as it will ping up module or wiring issues.

Anyway, there's a lot you can try yourself without spending much, see what occurs and go from there, I'd say get it scanned as well.

best of luck.
 

NHN

Retrofitter - Audi - VW - Skoda - Seat
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Whereabouts are you based as I'm sure most if not all I can either resolve or diagnose.
 

r.curt

New Member
Welcome to ASN, your go to place for all things Audi and more.

The problems you are outlining are all standard-issue A4 B7 problems and some will be connected to module issues or wiring issues.
Before you rush into ripping the car apart, have you considered getting a full diag scan to see what's really going on, if you haven't then I'd advise it, there's plenty of vcds members all over the country so I expect you can find one nearby to your location.

The Heating issue can be an airlock at your heater matrix, it's not always that but if you have no issues with the car engine getting up to temp etc then try bleeding the cooling system first and see what happens, its a very common issue and easy to address before looking at the stat etc.

Cruise control can be a bit iffy when not installed properly, vcds will ping up any issues there and will let you recode it properly if that is required.
the key fob may need new batteries or resynced to the car
rear door locking can be a damaged wire in the loom that runs into the door from the pillar, they become brittle and break if its not that then its a module issue, same applies here with vcds as it will ping up module or wiring issues.

Anyway, there's a lot you can try yourself without spending much, see what occurs and go from there, I'd say get it scanned as well.

best of luck.

Thanks very much for that mate just the reply I needed


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I'm Just Rob.

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If Nigel (NHN) cant help you due to location, try searching the VCDS locater on the forum as it will give you a better idea who's close by.
 

I'm Just Rob.

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Not sure if its upto date but may also be worth putting a request up on the vcds page for assistance in your area.
 

I'm Just Rob.

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I’m like junction 32 mate so I can easy make a trip to you if you wouldn’t mind


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Alex will help you out.:icon thumright:
 

Alex Holmes

Registered User
Scanned @r.curt A4 this morning and this is the scan report for you to ponder at.

Windows Based VAG/VAS Emulator Running on Windows 10 x64 VCDS Version: Release 20.12.0 Data version: 20201125 DS322.1 www.Ross-Tech.com Dealer/Shop Name: Workshop Code: 000 00000 000000 Self-Diagnosis Log Saturday,06,March,2021,10:24:00:00009 VIN: WAUZZZ8E66A278581 License Plate: KM56KUT Mileage: 220760km-137173mi Repair Order: Chassis Type: 8E (8E - Audi A4/S4/RS4 B6/B7 (2001 > 2008)) Scan: 01 02 03 08 09 0F 11 15 16 17 18 25 36 37 45 46 55 56 57 65 67 69 75 76 77 VIN: WAUZZZ8E66A278581 Mileage: 220760km-137173miles ------------------------------------------------------------------------------- Address 03: ABS Brakes Labels: 8E0-910-517.clb Part No SW: 8E0 910 517 H HW: 8E0 614 517 BF Component: ESP8 FRONT H06 0140 Revision: 00000000 Serial number: 00000000000000 Coding: 0004401 Shop #: WSC 06325 000 00000 VCID: 2C57B1B78F0B3EE48E-8078 No fault code found. ------------------------------------------------------------------------------- Address 08: Auto HVAC Labels: 8E0-820-043.lbl Part No: 8E0 820 043 BL Component: A4 Klimaautomat 2833 Coding: 00000 Shop #: WSC 00000 VCID: 6CD771B71C8BFEE4CE-513C No fault code found. ------------------------------------------------------------------------------- Address 09: Cent. Elect. Labels: 8E0-907-279-8EC.lbl Part No: 8E0 907 279 N Component: int. Lastmodul ECE 0907 Coding: 10001 Shop #: WSC 06325 VCID: 3D718CF33771A76C29-4B18 3 Faults Found: 01331 - Door Control Module; Driver Side (J386) 49-10 - No Communications - Intermittent 01317 - Control Module in Instrument Cluster (J285) 79-10 - Please Check Fault Codes - Intermittent 01312 - Powertrain Data Bus 49-10 - No Communications - Intermittent -------------------------------------------------------------------------------VCDS Self-Diagnosis Log Saturday,06,March,2021,10:24:00:00009 Page 2 VIN: WAUZZZ8E66A278581 License Plate: KM56KUT Address 15: Airbags Labels: 8E0-959-655-94.lbl Part No SW: 8E0 959 655 G HW: 8E0 959 655 G Component: Airbag 9.41 H12 3730 Revision: 91H12373 Serial number: 0036M0G0FN21 Coding: 0034622 Shop #: WSC 06325 000 00000 VCID: 3B7582EB7A65A95C17-806E Subsystem 1 - Serial number: 6332DRB4031A06216 Subsystem 2 - Serial number: 6342DRB4031B8BA0S Subsystem 3 - Serial number: 6352ARB4012D02BDO Subsystem 4 - Serial number: 6362ARB4012C0B57L Subsystem 5 - Serial number: 63729RB40120233A4 Subsystem 6 - Serial number: 63829RB40120230F7 No fault code found. ------------------------------------------------------------------------------- Address 16: Steering wheel Labels: 8E0-953-549.lbl Part No: 8E0 953 549 Q Component: Lenksáulenmodul 0601 Coding: 04042 Shop #: WSC 00699 VCID: 4189F0034B89C38C4D-4B18 1 Fault Found: 01334 - Door Control Module; Rear Right (J389) 49-10 - No Communications - Intermittent -------------------------------------------------------------------------------VCDS Self-Diagnosis Log Saturday,06,March,2021,10:24:00:00009 Page 3 VIN: WAUZZZ8E66A278581 License Plate: KM56KUT Address 17: Instruments Labels: 8E0-920-9xx-8EC.lbl Part No SW: 8E0 920 951 E HW: 8E0 920 951 E Component: KOMBI+WFS 4 H14 0110 Revision: 0110 Serial number: 00000000000000 Coding: 0006441 Shop #: WSC 00999 444 64523 VCID: 2C57B1B78C0B3EE48E-515A 8 Faults Found: 01176 - Key 004 - No Signal/Communication - Intermittent 00457 - Central Electronics Control Module / BCM (J519) 004 - No Signal/Communication - Intermittent 01331 - Door Control Module; Driver Side (J386) 004 - No Signal/Communication - Intermittent 01332 - Door Control Module; Passenger Side (J387) 004 - No Signal/Communication - Intermittent 01334 - Door Control Module; Rear Right (J389) 004 - No Signal/Communication - Intermittent 01333 - Door Control Module; Rear Left (J388) 004 - No Signal/Communication - Intermittent 01320 - Control Module for Climatronic (J255) 004 - No Signal/Communication - Intermittent 01336 - Company Data Bus for Comfort System 014 - Defective - Intermittent -------------------------------------------------------------------------------VCDS Self-Diagnosis Log Saturday,06,March,2021,10:24:00:00009 Page 4 VIN: WAUZZZ8E66A278581 License Plate: KM56KUT Address 25: Immobilizer Labels: 8E0-920-9xx-8EC.lbl Part No SW: 8E0 920 951 E HW: 8E0 920 951 E Component: KOMBI+WFS 4 H14 0110 Revision: 0110 Serial number: 00000000000000 Coding: 0006441 Shop #: WSC 00999 444 64523 VCID: 2C57B1B78C0B3EE48E-5178 8 Faults Found: 01176 - Key 004 - No Signal/Communication - Intermittent 00457 - Central Electronics Control Module / BCM (J519) 004 - No Signal/Communication - Intermittent 01331 - Door Control Module; Driver Side (J386) 004 - No Signal/Communication - Intermittent 01332 - Door Control Module; Passenger Side (J387) 004 - No Signal/Communication - Intermittent 01334 - Door Control Module; Rear Right (J389) 004 - No Signal/Communication - Intermittent 01333 - Door Control Module; Rear Left (J388) 004 - No Signal/Communication - Intermittent 01320 - Control Module for Climatronic (J255) 004 - No Signal/Communication - Intermittent 01336 - Company Data Bus for Comfort System 014 - Defective - Intermittent ------------------------------------------------------------------------------- Address 45: Inter. Monitor Labels: 8E0-951-177.lbl Part No: 8E0 951 177 Component: Innenraumueberw. 0804 Coding: 00001 Shop #: WSC 00000 VCID: 6BD572AB1985F9DCC7-515A No fault code found. -------------------------------------------------------------------------------VCDS Self-Diagnosis Log Saturday,06,March,2021,10:24:01:00009 Page 5 VIN: WAUZZZ8E66A278581 License Plate: KM56KUT Address 46: Central Conv. Labels:. 8E0-959-433-MAX.clb Part No: 8E0 959 433 CH Component: Komfortgerát T3B 4035 Coding: 07151 Shop #: WSC 06325 VCID: 79F958E363D95B4C45-4B32 Subsystem 1 - Part No: 8E2959802F Component: Tõrsteuer.FS BRM 0606 Subsystem 2 - Part No: 8E2959801F Component: Tõrsteuer.BF BRM 0606 Subsystem 3 - Part No: 8E0959801E Component: Tõrsteuer.HL BRM 0606 Subsystem 4 - Part No: 8E0959802E Component: Tõrsteuer.HR BRM 0606 13 Faults Found: 01334 - Door Control Module; Rear Right (J389) 49-10 - No Communications - Intermittent 01370 - Alarm triggered by Interior Monitoring 35-00 - - 00962 - Alarm via. Tilt Sensor 35-00 - - 01369 - Alarm triggered by Hood Switch 35-00 - - 01374 - Alarm triggered by Terminal 15 35-00 - - 01371 - Alarm triggered by Door Contact Switch; Driver's Side 35-00 - - 01574 - Alarm triggered by Door Contact Switch; Rear Right 35-00 - - 00956 - Key 2 35-00 - - 01331 - Door Control Module; Driver Side (J386) 49-10 - No Communications - Intermittent 00933 - Electric Window Motor; Passenger Side (V148) 62-10 - No or Incorrect Adjustment - Intermittent 01332 - Door Control Module; Passenger Side (J387) 49-10 - No Communications - Intermittent 01333 - Door Control Module; Rear Left (J388) 49-10 - No Communications - Intermittent 01334 - Door Control Module; Rear Right (J389) 49-10 - No Communications - Intermittent -------------------------------------------------------------------------------VCDS Self-Diagnosis Log Saturday,06,March,2021,10:24:01:00009 Page 6 VIN: WAUZZZ8E66A278581 License Plate: KM56KUT Address 56: Radio Labels: 8E0-035-1xx-56.lbl Part No: 8E0 035 195 M Component: symphony II PM6 0460 Coding: 01065 Shop #: WSC 66304 VCID: 3169A0C3FB29530CBD-50AC No fault code found. ------------------------------------------------------------------------------- Address 77: Telephone Labels: 8P0-862-335.lbl Part No SW: 8P0 862 335 M HW: 8P0 862 335 M Component: FSE_255x BT H21 0200 Revision: 00000001 Serial number: 00000000445330 Coding: 0001622 Shop #: WSC 06325 000 00000 VCID: 408FF5071083CA8442-515A No fault code found. End-------------------------(Elapsed Time: 06:36)--------------------------
 

Jamsmoo

Registered User
Where you based fella ,might need a scan in next few weeks if everything goes to plan


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I'm Just Rob.

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A few faults in there then.

Did you clear the log and then rescan to see what was still showing as a fault Alex.
 

Alex Holmes

Registered User
A few faults in there then.

Did you clear the log and then rescan to see what was still showing as a fault Alex.

Yes these remaing are active faults. Ryan did mention an intimitant fault with the o/s/r door not always locking so advised him to check the wiring in the gators first for the common broken wire fault.

Im thinking theres a lot of faults being caused by one minor issue somewhere, and being on the can network its projecting that issues across other systems.
 

Pie-eyedpiper

Registered User
D
Looking for a scan fella ,coil light started flashing after about 10-20 miles of motorway ,now eml on
Obviously beer tokens in the offing
I’m in notts


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Do you mean "coil" or oil?
You've had your balance shaft changed haven't you?
What else have you done so far?

I'm over in Lincs if you're really stuck.
 

Jamsmoo

Registered User
D

Do you mean "coil" or oil?
You've had your balance shaft changed haven't you?
What else have you done so far?

I'm over in Lincs if you're really stuck.

Lol glow plug light ,yes oil pump work done
I’ve done nothing yet as my mot was running out 25/3 so whilst there was no warning /eml on I thought I’d leave everything till after mot which I had on Wednesday
So mot went fine but he mentioned a bit smelly and needs a good run ,so that’s what I did same night a good 60mile up and down m1 ,about 10-20 miles in glow plug light started flashing then a bit later eml came on,as mentioned no difference in performance
Guessing the dpf needing regen and being unable to.Sorted someone to plug it in Monday while I’m off work cheers bud
I was always waiting for the mot before egr/inlet manifold and dpf were going ..maybe Sooner rather than later now


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Jamsmoo

Registered User
40494ee58b9cbe14b472201f18fa4357.jpg

Anyone advise with these found faults
I’ve read same issues with others here that have replaced maf and throttle body only for codes to persist
Thanks


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Pie-eyedpiper

Registered User
You haven't changed your flapped manifold yet then? The motor has a intermittent fault clearly.
Strange, because when I changed mine to a BKD it didn't bring any fault codes up at all. Swapping it might remove that fault code.
So glad I don't have a DPF, nothing but trouble.
 

Jamsmoo

Registered User
You haven't changed your flapped manifold yet then? The motor has a intermittent fault clearly.
Strange, because when I changed mine to a BKD it didn't bring any fault codes up at all. Swapping it might remove that fault code.
So glad I don't have a DPF, nothing but trouble.

Haven’t done the manifold yet ,my fault code relates to the inlet manifold flap/asv or throttle body as it would be called in a petrol and I think this is causing the maf fault
Stripped the asv down and it was full of oil..no stripped gear teeth ,tried cleaning and drying but to no avail
Sourced and fitted a new one yesterday and glow plug light has gone out but the ecs or eml is still on
Heard this can take a few cycles of no faults to go out ..hoping to get back to the kindly forum member who scanned it at the weekend to check


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Pie-eyedpiper

Registered User
That's weird as well, the ASV only comes into play when you shut down the engine. Unsurprisingly it closes and so is supposed to reduce shudder from the engine. How much it actually does is debatable because it can be removed too will little ill effect apart from bringing on your EML, that can be mapped out with a remap.
So unless yours was closing prematurely whilst running reducing your airflow it shouldn't affect things.
If you're keeping your EGR valve and that is playing up I still have mine in fairly decent nick.
I didn't have a spare ASV though.
What do you mean by the "glow plug light" too? I don't have one.
 

Jamsmoo

Registered User
The one that comes on as you turn your ignition ,preheater to warm your glow plugs that goes out to tell you to start car
Mine new asv has made a massive difference to shut down ..no judder ,so mine has been goosed the whole time
I can only presume signals are sent between this and the maf which according to my fault code are intermittent which has meant the right signals aren’t being received by ecu to instigate regen
a96421846ec2d778a6aabbfd000055b8.jpg



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Jamsmoo

Registered User
That's weird as well, the ASV only comes into play when you shut down the engine. Unsurprisingly it closes and so is supposed to reduce shudder from the engine. How much it actually does is debatable because it can be removed too will little ill effect apart from bringing on your EML, that can be mapped out with a remap.
So unless yours was closing prematurely whilst running reducing your airflow it shouldn't affect things.
If you're keeping your EGR valve and that is playing up I still have mine in fairly decent nick.
I didn't have a spare ASV though.
What do you mean by the "glow plug light" too? I don't have one.

Mine wasn’t doing anything at all ,just sat open
Could hear the signals being received by it but no action on the flap


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Pie-eyedpiper

Registered User
The one that comes on as you turn your ignition ,preheater to warm your glow plugs that goes out to tell you to start car
Mine new asv has made a massive difference to shut down ..no judder ,so mine has been goosed the whole time
I can only presume signals are sent between this and the maf which according to my fault code are intermittent which has meant the right signals aren’t being received by ecu to instigate regen
a96421846ec2d778a6aabbfd000055b8.jpg



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Wow, every day's s school day. I hadn't even noticed a glow plug circuit light on my dash. It certainly doesn't get much chance to pre-heat, even in Winter it must flash briefly and goes off at first key turn.
The guy (Facebook) that told me he took his ASV off and it didn't really affect his shutdown judder wise.
 
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