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Rain caused electrical problems

Followers

November 14, 2025Nov 14

Heavy rain has caused my A4 B7 cabrio to do strange things

I.e. open drivers door instrument shows passengers door open.

Driving panel shows mpg 154

Boot unlocks whilst driving

Window controls not working

Daren't try the roof controls!

No fuses have blown

Can it be the ECU is wet?

If so where is it?

November 15, 2025Nov 15

See if ECU lives under driver’s side bulkhead in engine compartment? LLL parts identifies it, but not its location. I’m assuming car is petrol? https://www.lllparts.co.uk/catalogs/audi/RDW/AA4C/492/9/906/906000

Also this link. https://www.audizine.com/forum/showthread.php/114129-B7-A4-ECU-Removal-(RHD-Vehicle)

I’d also look for the comfort control module, that might be your culprit.

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Engine / ECU to Injector wiring loom
New Members Introductions

Engine / ECU to Injector wiring loom

Neil Robertson · 1 hour ago1 hr

Hi, I'm looking for a engine/injector wiring loom that goes from the ECU (8P0 907 115 T Med 9.1) to the injectors (06F906036A) for a Audi A3 2008 2.0L TFSI Quattro due to an intermittent misfire issue on cylinder no. 4. Cost from TPS for genuine replacement is astronomical, any help would be appreciated (e.g. where to source a replacement, correct part no., etc)
- 1 reply
- 16 views
Neil Robertson

1 hour ago1 hr

Neil Robertson

1 hour ago1 hr
Are S5's notorious for not being serviced?
New Members Introductions

Are S5's notorious for not being serviced?

ZeroX · Saturday at 10:46 AM5 days

Hi, following on from my previous thread, I have seen another car that I was interested in: https://www.evanshalshaw.com/search/details/used/audi/a5/automatic-petrol-white-coupe/06ce9494-f94d-f111-8fdd-000d3a874790/ When I enquired with the dealer, they said there is only one stamp in the book from February of this year, and no history at all in the Audi database. So there is only evidence of 1 service in almost 10 years. I am starting to get a bit !Removed! off with this actually, and it's real
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ZeroX

Saturday at 10:46 AM5 days

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2 hours ago2 hr

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C5 RS6 034 strut top mount

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Audi A5 Club

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Hello everyone, Wondering if anyone can help me. A few weeks ago my EPC light came on and immediately went into limp mode and started jumping when driving at 5mph. After a few hours I came back to the car and it was fine so I drove it to my storage unit. I came back the next day and when starting it the EPC light and EML light were illuminated and the idle was quite rough. I came back to it about a week ago and all the doors were locked, the key isn't unlocking it and the barrel of the central
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Kian

May 27May 27

cliffcoggin

5 hours ago5 hr
Wing mirrors don't fold out when unlocking the car.
Audi Q2 Club

Wing mirrors don't fold out when unlocking the car.

john260164 · 8 hours ago8 hr

Hi. My partner's recently bought Q2 has an odd and not very welcome feature. The wing mirrors fold on locking the car with the key pilp, but don't unfold when the car is unlocked with the plip. They only do so when the key goes in the ignition. In some circumstances this can lead to doubt about whether the doors are locked or not whereas before it was obvious as the plip alone folded and unfolded the wing mirrors (as is does with my similarly new A3). The garage says it can't be changed but does
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john260164

8 hours ago8 hr

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Audi A3 (8Y) Forum

Park My A3 without having brakes on

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Hi all I have had my A3 since September 2025 and I haven't yet been able to figure how to park it in my garage with the brakes off. It's an auto and I have read lots of stuff but I cannot figure it out. I may be stupid but there you go any helpful advice will be appreciated. JB
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JGB

12 hours ago12 hr

joe6

6 hours ago6 hr
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A3 uncommanded engine shutdown

Bobs dad · 11 hours ago11 hr

I have a new A3 Black Edition auto. Within four weeks of delivery the engine cut out whilst driving, the drivetrain under positive power. The car rolled to a complete halt, the retardation entirely commensurate with the wheels driving a dead engine - it did not freewheel. The instrument panel remained powered and displayed no warning lights or fault messages. I shut the car down and after a pause restarted. Since then it has operated normally. The Distributor has found no data supporting t
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Bobs dad

11 hours ago11 hr

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Recently while driving my EPC light came on . Followed by my engine management light. Unfortunately I was on the motorway so put car into sports mode in the auto box to keep the revs high so I could get home the 49 miles. Been to the garage this morning no lights on my dash they diagnosed 2 coil packs going down. They are going to replace all 4 spark plugs and coil packs next week. They also said that I may now need a new catalytic converter. Has anyone had any issues with this sort of proble
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Andy baggy

May 21May 21

Steve Q

7 hours ago7 hr
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Audi A3 (8P) Forum

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BlueBird · 14 hours ago14 hr

My passenger door only unlocks during summer months, back door same side, intermittent during winter. Is there an explanation please?
- 1 reply
- 58 views
BlueBird

14 hours ago14 hr

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7 hours ago7 hr
GEARBOX MALFUNCTION YOU CAN CONTINUE DRIVING
Audi A6 (C7) Forum

GEARBOX MALFUNCTION YOU CAN CONTINUE DRIVING

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Hi, so I’ve had my audi a6 just over a year now cars been brilliant tbh drives perfect, on Saturday I did a 350 mile round trip to London and back in one day no issues at all that’s probably the longest drive I’ve done in the car, today I was driving back from work I got a message on my dash saying gearbox malfunction, I scanned the car and it gave me these three codes P084000 Transmission Fluid Pressure Sensor/Switch A P177500 Hydraulic pressure sensor 1 Adaptation at limit P060B00 Internal C
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Fcam_96

Monday at 08:04 PM3 days

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7 hours ago7 hr
A% front suspension groan
Audi A5 Club

A% front suspension groan

IainH · 7 hours ago7 hr

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7 hours ago7 hr

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Audi A3 (8P) Forum

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Lewbyleww · 14 hours ago14 hr

Hi all does anyone have any idea on what this distinct tapping noise could be? had the rocker arms, lifters, injectors and all cam followers replaced and is still present. Noise is at idle and speeds up with acceleration and can hear it inside doesn't affect performance. Been advised by three separate mechanics its not bottom end so at my wits end really, any thoughts appreciated. Thanks a7bcf128-5947-4002-afba-29c811dd5d88 (1).mp4
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Lewbyleww

14 hours ago14 hr

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Does anyone know what this high pitched noise is?
Audi A1 Club

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redaudi20 · December 11, 2025Dec 11

IMG_2335.MOV Hi there, My A1 1.6 TDI Sport 2017 makes this high pitched noise which sounds like it’s coming from the right rear side. It more tends to happen when the weather is cold. It starts when the car has been going for a couple miles and stops as soon as you turn the engine off. I have attached a video of the noise. Does anyone know what this could be? Thanks IMG_2335.MOV
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redaudi20

December 11, 2025Dec 11

StanH

14 hours ago14 hr

Welcome to the Audi Owners' Club - An Independent community!

Rain caused electrical problems

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Topics

Engine / ECU to Injector wiring loom

Are S5's notorious for not being serviced?

New 226 audi q3

Running boards 2024 black petrol standard model

C5 RS6 034 strut top mount

Help with some issues

Wing mirrors don't fold out when unlocking the car.

Park My A3 without having brakes on

A3 uncommanded engine shutdown

Audi A1 coil packs

Central locking

GEARBOX MALFUNCTION YOU CAN CONTINUE DRIVING

A% front suspension groan

Any ideas on what this sound could be? Audi A3 8P

Does anyone know what this high pitched noise is?

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