PetrolDave

Sounds like the motors that move the lights are OK, which suggests the problem is further back in the system (such as not getting steering data over the CAN bus). I think a fault scan is needed to get the details of the fault code that will have been stored.

WiFi has to be enabled on the phone and whatever you need to do on the car to enable its WifI (can't help with that as I don't own an Octavia IV).

Wireless CarPlay connects in two stages, initial connection is by Bluetooth then using Bluetooth a WiFi connection is negotiated which is used for actual CarPlay data transfer.

My 2008 Citroen C1 was £20 (109g/km), my previous 2015Octavia 1.4TSI Elegance estate was £30 (119g/km) but my current Toyota Aygo is £155 (101g/km) and if I still had it my 2007 Audi RS4 would be £600 (329g/km).

That's a MIB2 Amundsen with DAB

... more like non-removable external memory 😚

You need to be 100% sure that none of the cars you will use a KKL cable with have CAN diagnostics for this option. Second point, cars from 2019 onwards have more complex diagnostics and need either a HEX-V2 or HEX-NET cable (the older cables such as HEX-USB+CAN simply cannot be updated to work with the new more complex diagnostics) - blame VAG not Ross-Tech for this.

Been asked on the Ross-Tech forum several times recently, the simple answer is no - once a VIN is used it's permanent and cannot be removed. A VIN is only used when changes are made to coding or adaptation, reading and clearing faults or doing an Auto-Scan doesn't use a VIN.

Not so - with an Amundsen there is no internal memory, the maps are read directly from the SD card which must be present at all times. The Columbus does have an internal HDD where the maps are stored.

Just to clarify that's true only with an Amundsen (which reads the maps directly from the SD card), with a Columbus the maps are stored on an internal HDD and can be updated using any SD card.

The lights come on as a bulb and system check - in most cases the system check can be done straight away so they go out. But the engine can't be checked until it's running, so the ECS light can't go out until the engine is running. So perfectly normal and correct behaviour.

IMHO the problem isn't damaged storage but badly written software that uses the storage not using it properly.

The immobiliser in the fob is totally passive, it doesn't need the fob battery to be able to start the car - as has been suggested holding the fob (with dead battery) against the Start button will start the engine and turn off the alarm. At least it did when I needed to do it earlier this year ...

That's the latest version

The MOT guidelines say that if headlamp washers are fitted they must work to pass the MOT, even if the car has halogen headlamps (that don't require headlamp washers) - as I found out with my Elegance which had headlamp washers with halogen headlamps.

AFAIK for both Android Auto and CarPlay the initial connection is via Bluetooth which is then used to negotiate and enable the WiFi connection that AA & CP use.

Dartmoor Prison was going to be closed next year so they been moving inmates to other establishments, so there are now more farmers etc. living on Dartmoor (mostly paying rent to the Duchy of Cornwall) now than those in the prison.

... so long as OP doesn't live on or near Dartmoor or Exmoor.

There's an awful lot of misinformation about car infotainment systems about...

The DSP only has an input from one left speaker and one right speaker, so you need to use the front left & front right speaker connections from the car and set the fader on the car to the front.

Pretty standard practice for most car manufacturers, making the seal at the base of the window to be a complete seal would be a hopeless task.

Same on the Mk3, you needed the 13 pin (IIRC) motor with feedback connections and the memory seats to provide the memory.

Sounds like the EV manufacturers need to do more winter testing in northern Sweden at one of the many testing sites already used by ICE car manufacturers.

We'll have to agree to disagree there

To reduce/prevent glare from accumulated dirt on the headlight lenses when LED or Xenon lamps are fitted.