VETRA

Oh my God! Thank you so much for the unbelievably clear answer! You won't believe how long I was searching for this Thanks @Aida, thanks @janihani, thanks A2-freun.de!

Hello everybody! I would like to update the old-school black window switches to the new chromed ones. These (photo from the internet): to these (my car photo ): The driver's door is plug-n-play 🤘 😀 But for the passenger's doors it's not so easy on my car. My A2 is an early-production one - it has different (old-school) connectors. In the picture below you see the new window button (with the new connector) and the connector that my car has: The new button has 4-pin connector, while the old one has 10-pin connector. This picture shows both buttons side-by-side: We can see that only pins 1, 2 and 5 are used in the old button. Now - here are the diagrams: Audi A2 Model-year 2000+ The new chromed buttons are for A3 8P... Here are the diagrams for the A3: Front passenger: Rear passengers: So, focusing on the A3 right rear passenger door (assuming before November 2005): E54 (window switch) pins connects to J389 unit pins 1 --> T32f / 23 2 --> T32f / 4 3 --> T32f / 8 My car: E107 (window switch) pins connects to J387 unit pins 1 --> T32d / 6 2 --> T32d / 25 5 --> T32d / 21 So my question is down to J387 and J389 units pinouts assignment, particularly how do the mentioned above pins correspond? How can I connect wires from my old-type connector to the new-type button? Thank you!

Thanks HellSoldier! By the way, I sometimes have this error: 17443 - Sensor for NOx (G295) P1035 - 35-10 - Signal Implausible - Intermittent and most of the times this one: P1033 - 35-10 - Signal Too Low - Permanent Is this a cause of the misfires, or could this be the reason (impacting the fuel/air mixture to be too lean or too reach) ? Is it worth taking out and cleaning the NOx sensor head? Or replacing the NOx sensor for a new one? (they cost around 100Eur and they are not difficult to replace - as compared to the injectors...)

Thank you Lubomir! This is very interesting! I wrote the guy (Bastek555) a PM asking for more details... Thanks again!

Thank you HellSoldier! "Some kind of leakage" - you mean the air leak? Or coolant leak? Or fuel leak? My engine looks dry on the outside... Any particular area to focus on? Thanks again!

Thank you Marius!! I spoke with my garage guys - they said they are quite afraid of the amount of labour for taking out the injectors... but it looks like this is the way to go... (I live in a tiny village.........) I'll study a bit - maybe I could try to do it myself... Thanks again! Cheers Vitaly

Hello everybody! I am new to this forum and what brought me here is, as it often happens, a big problem that I can't figure out myself... My lovely A2 1.6 FSI, which I own for less than a year started misfiring about 6 months ago. It started as barely noticeable and gradually it's getting worse and worse... The engine works perfectly for 3-5 minutes after cold start. Then after a little warming up (say, 3-5 km travelled): Works ok at ide. Works ok (ish) at revs >4000 RPM. Noticeably misfires at RPMs around 2000-2500, especially around 50% throttle. Check engine blinks then light up. Here are the errors I am getting all the time: Control Module Part Number: 036 906 013 F Component and/or Version: MED7.5.11 4628 Software Coding: 00051 Work Shop Code: WSC 02138 Additional Info: WAUZZZ8Z53N005638 AUZ7Z0B2098087 VCID: 122DCA0A5E18EB8E3D9-5000 6 Faults Found: 17443 - Sensor for NOx (G295) P1035 - 35-10 - Signal Implausible - Intermittent 16523 - Oxygen (Lambda) Sensor B1 S2 P0139 - 35-00 - Response too Slow 17584 - Bank1: O2 (Lambda) Correction Behind Catalyst P1176 - 35-00 - Control Limit Reached 16684 - Random/Multiple Cylinder Misfire Detected P0300 - 35-10 - - Intermittent 16685 - Cylinder 1 P0301 - 35-10 - Misfire Detected - Intermittent 16687 - Cylinder 3 P0303 - 35-10 - Misfire Detected - Intermittent Misfiring cylinders are randomly different every time. What I did so far: Fuel system: - Replaced fuel filler cap – no effect - Replaced fuel filter – no effect - Replaced fuel pressure regulator – no effect - Replaced Activated charcoal canister – no effect - Replaced N80 solenoid valve – no effect - Used injector cleaning fuel additives several times – sometimes they seemed to have helped a little, maybe… Ignition: - Replaced spark plugs – this probably helped a little - Replaced ignition coils – this helped a lot but didn’t solve the problem Engine mechanics: - Checked compression I did this in a garage – I don’t remember the numbers, but the guys said all cylinders are even and the values are good. - Cleaned up the grounding point behind the left headlight – didn’t do much. Now I’m puzzled where to look next. I attach also here a few logs. Any advice will be highly appreciated! LOG-01-007-140-142.csv LOG-01-007-140-142 1.csv LOG-01-007-140-142 2.csv LOG-01-007-140-142 3.csv