Sid2020

Think it took me a couple of hours but that’s what I do for a job, I would pop down the centre roof trim at the back to secure the wiring to the factory loom at the hinge. Il post a picture of the coding that got mine working properly eventually

Did you get this fixed

Did you get this sorted in the end, it could be disabled due to faults in other systems most commonly brake and engine ecus. Am I correct in thinking your A8 uses a master and slave radar system with each located on different sides of the bumper and possibly a lidar in the center, I calibrated one of these years ago and at that time they had to be done in a set sequence and if one goes out of calibration it shuts all them down for safety

That’s where it is usualy located on the b9, between the pipe you have and the airbox, Audi must have decided to relocate it for some reason unless it’s been removed but that would cause a few faults

If it’s your first time just buy a plastics trim tool kit as can’t go far wrong with them, check out any trims you are removing on eBay so you can get a idea of what holds them in place. I routed mine down the passenger side removing the trims along the floor and a and pillar. the main wiring harness will usually be tucked down the side of the inner sill panel behind the carpet so will be plenty of extra room for you loom, on mine it was lower seat cushion that needed removed for access to the canbus junction and wired into the passenger qter panel fuse box but mine is a b9 avant so yours might differ. Tricky part I found was the mmi connection as just a lot of faffing around getting to the connector i needed but in all honesty there’s nothing to be worried about, from memory the A3 tailgate handle you will be replacing with a camera version can be a pain to remove without losing a few lugs so just keep carm with it and it will eventually come out

Hopefully that’s it’s sorted

Found this quickly on back of a grille, some Have more options and not all have diagrams to help like this

Might be as we’re a trade account that we always get the part numbers when getting price’s, that way when the cars stripped down if the part number on the part is different to what’s quoted we can get updated prices, some Audi front grilles actually list all the possible part number variants on the back of them but not much help unless you know what the differences are

Aircon can only work when engine is running as it’s a mechanical pump or high voltage pump if a hybrid or EV. Might be that without the engine running the heater controls let you select AC and the flaps respond as such but once the engine is started it detects a low pressure in the AC system and shuts it down to protect the pump. Diagnostic scan would show this fault. If the AC system definitely has enough gas as they do slowly lose it and still displays the fault it would point to the pressure sensor which is easy to replace

Had similar on my car with no fault codes for While, eventually got worse and thru a glow plug fault. Replaced them and now all is fine again, glow plug failures only effected vehicle starting years gone by but on the latest generation of diesels they seem to play a bigger role due to regenerations and strict emission standards

Switching the ignition off for a minute will reset the parking sensor system. I would recheck the fuses making sure there seated correctly if it was working before, check your hand book for fuse layout to steer you in the right direction to save some time

The rubbers are changeable, ease them off gently Bit by bit avoiding bending them as much as possible, other parts will need removed first in allow them to come off properly

Most company’s include the coding in the cost of fitting the kit so the £300 starts to look abit better, I fitted a reverse camera to my b9 and have the equipment at my work to code it in but getting the parameters set correctly was a right pain

Does it get sprayed with a chemical when the cars cleaned, the plastic chrome is sometimes razor sharp when it starts breaking up so watch your fingers but if you could pick the remaining chrome off you could get a silver/chrome vinyl wrap and apply that. I wrapped all my chrome with black vinyl as it started to go milky looking

Get an independent auto electrician on the job, they will carry out pin out tests for modules and components, test wiring and carry out any programming required. If it turns out to be a mechanical failure they should be able to tell you this from the above tests

We have problems with grilles and that’s buying direct from Audi as so many variables depending on spec. I can see a front 360 camera and parking sensors so that would be represented in the part number you need, the black bezel may also change the number again. Best just phoning a dealer and ask for a quote with part number. Shouldn’t be a problem for them

Sometimes you get what you pay for so I wouldn’t think about the part prices but as you say, makes you feel good when you do the job yourself

Glad it’s all sorted

Bumper off, antenna fitted and bumper back on I’d say 1.5hrs max, calibration 30mins. What Audi charge I could only guess

This is where it gets tricky, if you have blind spot assist this comes under a driver assistant system and as Audi states it needs recalibrated they will Resist not doing it for liability reasons which is totally understandable from a dealer point of view. The con is that all it involves is putting the car into calibration mode and a brief 10 min drive

In some Scandinavian countries they have a socket in the front bumpers so they can have them plugged in easily to keep a cabin heater running due to the outside temperatures so always worth investigating

Pretty normal for a smallish car, your car will be on the light side so easily affected by wind and passing traffic

There’s a red/purple antenna behind the rear bumper, fitting new one should be plug and play but if you have blind spot assist the rule Book says this needs to be calibrated if the rear bumper is removed and replaced/refitted, in the real world you will be fine, the system is not very precise like a front radar

Never came across a aftermarket airbag and never want to either, will be Audi or eBay for it I’d say

Hard to tell with out actually having the car and airbag in front, airbags don’t typically need coding in just airbag modules so you should be fine, you get single stage and twin stage airbags so would need to make sure that you get the correct type for your car but likely to be only one, small black plug looks like horn ring