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Fit whatever capacity is recommended by the manufacturer, but please ensure you install a good quality battery. Varta and Exide are two names that come to mind, though there are others whose names escape me. Avoid like the plague any cheapie from the internet or the likes of KwikFit.

At least the problems sorted now Peter.

Thanks Gareth These look just what I'm looking for. I'll discuss these with the garage I use. Alan

I've sent you a pm Stephen

Hi .. It's a 2007 .. I'll get it scanned and do the work myself do most work on my cars myself for the past 15 years saved me a fortune haha. I am going to check the fluid level when I get home working away atm but I'll keep the post updated Cheers

A dying battery can indeed cause all the symptoms you describe. Get it tested if you want confirmation, but in your place I would not hesitate to replace an eight year old battery. Don't forget to get it coded to the car. PS The volt meter readings tell you nothing about the internal condition of the battery.

There are 3 actuators that control the air flow. They have sensors in them which tells the control module their position. The sounds you are hearing are the actuators cycling and trying to sence their position which they cant. So they remain open and allow the hot air to come in. VCDSS would tell you which one is at fault, in any ways they have to be replaced. Items 4, 6 or 7 To the begining Air-conditioning system with electronic regulation for Audi A4/Avant(A4) 2002 [EUROPA] № part number description remark unit model Air-conditioning system with electronic regulation 1 8E1 820 021 E Fan lhd 1 1 8E2 820 021 E Fan rhd 1 2 8E1 820 511 F actuator motor for air flow flap lhd light blue V71 1 3 8E1 820 511 D positioning motor for recirculated air operation lhd blue V 113 1 3 8E2 820 511 D positioning motor for recirculated air operation rhd blue V 113 1 4 8E1 820 511 B Servomotor for defroster flap lhd green V 107 1 4 8E2 820 511 B Servomotor for defroster flap rhd green V 107 1 5 8E1 820 511 G control motor for temperature regulating flap left lhd red V 158 1 5 8E2 820 511 E control motor for temperature regulating flap right rhd yellow V 159 1 6 8E1 820 511 K actuator motor, footwell flap foot well flap lhd white V 70 1 6 8E2 820 511 H actuator motor, footwell flap foot well flap rhd black V 70 1 7 8E1 820 511 H control motor for temperature regulating flap right lhd violet V 159 1 7 8E2 820 511 F control motor for temperature regulating flap left rhd brown V 158 1 8 8E1 820 353 B Air distribution housing lhd 1 8 8E2 820 353 B Air distribution housing rhd 1 9 8E2 820 024 Evaporator housing rhd 1 9 8E1 820 024 Evaporator housing lhd 1 10 8E1 820 153 Intake duct lhd 1 10 8E2 820 153 Intake duct rhd 1 11 8E1 819 151 Footwell vent lhd 1 11 8E2 819 151 Footwell vent rhd 1 15 8E1 820 103 evaporator F >> 8E-3-285 000* lhd 1 15 8E1 820 103 A evaporator F 8E-3-285 001>>* lhd 1 15 8E2 820 103 evaporator F >> 8E-3-285 000* rhd 1 15 8E2 820 103 A evaporator F 8E-3-285 001>>* rhd 1 16 8E1 820 031 heat exchanger also use: lhd 8E0 898 380 1, 1 16 8E2 820 031 heat exchanger also use: rhd 8E0 898 380 1, 1 17 4B1 819 011 Auxiliary heater for air conditioner LLKG Z35 1 17 4B2 819 011 Auxiliary heater for air conditioner RLKG Z35 1 20 8E0 898 380 Gasket set 1 21 8E1 898 350 1 set: pipes for heat exchanger also use: lhd 8E0 898 380 1, , 1 21 8E2 898 350 1 set: pipes for heat exchanger also use: rhd 8E0 898 380 1, , 1 23 8E0 820 992 A Bungs 1 24 8E1 816 311 air hose for models with cool box lhd 1 24 8E2 816 311 air hose for models with cool box rhd 1 - 8E0 820 701 Vent for vehicles with air condit. Glove compartment 1 8E0 820 701 4 PK soul (black) 25 1K0 907 543 A Temperature sensor G 263 1 26 N10 424 101 hexagon head panel screw 4X16 X 28 4B0 820 539 Temperature sensor G 262 1 29 4B0 820 539 Temperature sensor G 261 1 30 8E1 260 113 A water drain pipe lhd 1 30 8E2 260 113 A water drain pipe rhd 1 34 8E0 260 155 drain tube 1 37 8E1 819 079 Retaining bar lhd 1 37 8E2 819 079 Retaining bar rhd 1 38 N01 028 73 Hexagon bolt M6X16 4 39 N90 457 003 hexagon head bolt (combi) M6POWX15, 5-S1 1 40 8E0 820 539 Temperature sensor evaporator G89 1 41 Discont. / replace: 8E1 898 400 8E2 898 400 1, 1 lhd rhd 42 Discont. / replace: 8E1 898 400 8E2 898 400 1, 1 lhd rhd 43 Discont. / replace: 8E1 898 400 8E2 898 400 1, 1 lhd rhd 44 8E1 898 400 1 set attachment parts for heat exchanger lhd 1 44 8E2 898 400 1 set attachment parts for heat exchanger rhd 1 45 N10 095 101 Clamp 8X17 1 47 4B1 819 164 Cover for models without auxiliary heater lhd 1 47 4B2 819 164 Cover for models without auxiliary heater RLKG 1 - 8E0 819 425 B Cover cap 1 - 8E1 898 001 B 1 set: levers for air distribution housing lhd 1 - 8E2 898 001 B 1 set: levers for air distribution housing rhd 1 - 8E0 898 001 1 set: levers for air distribution housing Defroster flap F >> 8E-4-280 000* 1 - 8E0 898 001 A 1 set: levers for air distribution housing Defroster flap F 8E-4-280 001>>* 1

I had the same issue with my new Audi and it was driving me insane. Eventually, I figured out that it had nothing to do with data packages or Wi-Fi hotspots or any of that, either on my phone settings or on the car itself. How I got it working was going into the “my Audi“ app, selecting my profile, then “vehicle connection” and ensuring that “MMI Wi-Fi connection” is set on and “automatic log in on the MMI” it’s also set on. Finally, make sure that the Wi-Fi network that you use has “private Wi-Fi address” turned off. The MyAudi thoughtfully includes a direct link in the same section 2 “private Wi-Fi address“. gl. 👍

Hi Dan, Alexa is quite easy to set up. From the Home Screen select Users. Then select a user, I selected the key User in my vehicle. Then just follow the instructions on the MMI and your phone to register your vehicle with Alexa. The wifi on my phone connects to the vehicle's wifi hot spot. It connects automatically when the phone is in the car so you may need to set this hotspot up on your phone. Now you should have 'Hey Audi' and 'Alexa' voice commands.

You are on the right path. Low data usage requests like weather and smart home integration go via the built-in Audi SIM (the one that's used for OTA map updates). All entertainment requests that consume more data (e.g. Amazon Music) require that a second wireless connection known as "APN2" is active. APN2 can be activated by: 1. Purchasing a data plan from Audi - https://audi.cubictelecom.com/en/; 2. Inserting an active SIM card into the APN2 SIM slot; or, 3. Connecting a phone that supports Bluetooth Remote SIM access profile (rSAP) to the infotainment system. Hope that helps.