B8 S4 Ownership

[catso]

Gad-Westy said:

I mentioned earlier about picking up an OBD scanner. Just seemed a prudent move. Anyway, I discovered that ELM327 bluetooth dongles are not compatible with iphones. So I bought a wifi one instead. Carista recognises it but says it is incompatible with Carista diagnostics. Torque app requires me to pay to even try connecting something.

The app that I downloaded by scanning the QR on the scanner's own packaging is for bluetooth connections, not wifi. Got to love chinese stuff! Any ideas?

I have this;



Came from ebay some years ago, IIRC around a tenner? but it works fine with Carista on iphone via it's own wifi network.

Never used it on the S4 though as I have VCDS which does so much more.

[Gad-Westy]

catso said:

Gad-Westy said:

I mentioned earlier about picking up an OBD scanner. Just seemed a prudent move. Anyway, I discovered that ELM327 bluetooth dongles are not compatible with iphones. So I bought a wifi one instead. Carista recognises it but says it is incompatible with Carista diagnostics. Torque app requires me to pay to even try connecting something.

The app that I downloaded by scanning the QR on the scanner's own packaging is for bluetooth connections, not wifi. Got to love chinese stuff! Any ideas?

I have this;



Came from ebay some years ago, IIRC around a tenner? but it works fine with Carista on iphone via it's own wifi network.

Never used it on the S4 though as I have VCDS which does so much more.

Unfortunately that’s the one I have. Not sure if it’s DOA or just not compatible with Audi via Carista.

[Adrian E]

If MRC did your map, then leave it as it is - you can probably call them for a copy of the dyno printout as I'm sure they save them all by registration.

Looks like you might have Supersports seats too (can't see the backrests, but the seat base looks like the Supersports ones?). Optional on the S4 and standard on the S5 Sportback

[Gad-Westy]

Adrian E said:

If MRC did your map, then leave it as it is - you can probably call them for a copy of the dyno printout as I'm sure they save them all by registration.

Looks like you might have Supersports seats too (can't see the backrests, but the seat base looks like the Supersports ones?). Optional on the S4 and standard on the S5 Sportback

Oops, yes I forgot about the seats. They're indeed Supersports. Seats have memory too, which is nice. Need to get that set to the key but there is quite a lot I need to get my head around on this car still. Already needs a wash too!

Looks like it remap was done by Dyno Remaps in Teeside.

https://dynoremaps.co.uk/

[Hol]

Has anyone bought a used car with a PH smiley on the back?

[HiAsAKite]

Gad-Westy said:

....stuff about his new S4....

Looks lovely.

Sports diff and adaptive cruise!
Be interested to know what yours is putting out.. presume 420+ (i think a remap alone without pulley gets you to c 400bhp)

[catso]

Gad-Westy said:

catso said:

Gad-Westy said:

I mentioned earlier about picking up an OBD scanner. Just seemed a prudent move. Anyway, I discovered that ELM327 bluetooth dongles are not compatible with iphones. So I bought a wifi one instead. Carista recognises it but says it is incompatible with Carista diagnostics. Torque app requires me to pay to even try connecting something.

The app that I downloaded by scanning the QR on the scanner's own packaging is for bluetooth connections, not wifi. Got to love chinese stuff! Any ideas?

I have this;



Came from ebay some years ago, IIRC around a tenner? but it works fine with Carista on iphone via it's own wifi network.

Never used it on the S4 though as I have VCDS which does so much more.

Unfortunately that’s the one I have. Not sure if it’s DOA or just not compatible with Audi via Carista.

Curiosity got me trying mine on the S4 and, you're right it won't work. The Carista app only gives a limited selection of scanners (one of which is Elm327) but it won't recognise this one.

Strange because with the same Carista app and scanner it works fine on my Son's Clio so, must be an Audi thing?

[Gad-Westy]

catso said:

Gad-Westy said:

catso said:

Gad-Westy said:

I mentioned earlier about picking up an OBD scanner. Just seemed a prudent move. Anyway, I discovered that ELM327 bluetooth dongles are not compatible with iphones. So I bought a wifi one instead. Carista recognises it but says it is incompatible with Carista diagnostics. Torque app requires me to pay to even try connecting something.

The app that I downloaded by scanning the QR on the scanner's own packaging is for bluetooth connections, not wifi. Got to love chinese stuff! Any ideas?

I have this;



Came from ebay some years ago, IIRC around a tenner? but it works fine with Carista on iphone via it's own wifi network.

Never used it on the S4 though as I have VCDS which does so much more.

Unfortunately that’s the one I have. Not sure if it’s DOA or just not compatible with Audi via Carista.

Curiosity got me trying mine on the S4 and, you're right it won't work. The Carista app only gives a limited selection of scanners (one of which is Elm327) but it won't recognise this one.

Strange because with the same Carista app and scanner it works fine on my Son's Clio so, must be an Audi thing?

I’ll maybe see if it works with any other apps otherwise back to the drawing board

[Gad-Westy]

I decided just to order a carista dongle in the end for £26 from Amazon. I have a three month warranty on the car and I'll get a 1 month free trial so seems a good way to ID any issues and get sorted while the car is still covered.

[Gad-Westy]

HiAsAKite said:

Gad-Westy said:

....stuff about his new S4....

Looks lovely.

Sports diff and adaptive cruise!
Be interested to know what yours is putting out.. presume 420+ (i think a remap alone without pulley gets you to c 400bhp)

One of the reasons I'd be interested in getting it looked at again is that I don't have a graph. I do have an invoice so I know when it happened and where but that is all. I also have not driven a standard car so I don't really have a reference point for seat of the pants dyno. I actually thought the car might feel more explosive than it does but the numbers on the speedo certainly go up quickly.

[HiAsAKite]

Gad-Westy said:

One of the reasons I'd be interested in getting it looked at again is that I don't have a graph. I do have an invoice so I know when it happened and where but that is all. I also have not driven a standard car so I don't really have a reference point for seat of the pants dyno. I actually thought the car might feel more explosive than it does but the numbers on the speedo certainly go up quickly.

Mine feels the same. I had a C5 A6 with the 2.7T biturbo before, and i have to say the biturbo felt far more "punchy" when you accelerate (especially from low revs), there's slight lag and the the surge from the turbo.
None of that in the supercharged S4, instead it just builds and builds with the revs..
I'm pretty certain the S4 is actually faster, (it certainly should be!) it just doesn't have the turbo surge the biturbo did. Earlier on in this thread a few folks did comment that remaps do increase the low end torque significantly.

[Gad-Westy]

HiAsAKite said:

Gad-Westy said:

One of the reasons I'd be interested in getting it looked at again is that I don't have a graph. I do have an invoice so I know when it happened and where but that is all. I also have not driven a standard car so I don't really have a reference point for seat of the pants dyno. I actually thought the car might feel more explosive than it does but the numbers on the speedo certainly go up quickly.

Mine feels the same. I had a C5 A6 with the 2.7T biturbo before, and i have to say the biturbo felt far more "punchy" when you accelerate (especially from low revs), there's slight lag and the the surge from the turbo.
None of that in the supercharged S4, instead it just builds and builds with the revs..
I'm pretty certain the S4 is actually faster, (it certainly should be!) it just doesn't have the turbo surge the biturbo did. Earlier on in this thread a few folks did comment that remaps do increase the low end torque significantly.

Indeed. I think the linearity of the delivery has a lot to do with it. A little while back I had an Alpina B10 with about 350bhp and that never felt especially quick either but every now and then, you'd overtake someone and be surprised by how quickly your relative speeds suddenly change. I think the S4 is probably like that. I had a Leon Cupra 300 for a bit as well and that always felt quite explosive but much of that is likely down to turbo delivery and that it was often fighting for traction so felt dramatic. Anyway, the S4 is far quicker than I need it to be, which is just right in my book

I have encountered my first problem though. It has ACC but if I try to engage cruise, nothing happens other than a message on the dash saying "ACC NOT AVAILABLE!". I understand the ! on the end might be significant having done a little googling. My Carista dongle should arrive later so I can do a little digging but anything quick and simple I can look at?

[Adrian E]

A fault code scan is the answer for that - there should be a logged reason. Most likely if the bumper has been off at some point and the sensor has been disconnected they haven’t calibrated the ACC sensor…….

Fault code might come up as ‘missing basic settings’ or similar - it usually involves setting up a grid pattern at a set distance from the sensor. I’ll see if I can find the details this morning…..

[Gad-Westy]

Adrian E said:

A fault code scan is the answer for that - there should be a logged reason. Most likely if the bumper has been off at some point and the sensor has been disconnected they haven’t calibrated the ACC sensor…….

Fault code might come up as ‘missing basic settings’ or similar - it usually involves setting up a grid pattern at a set distance from the sensor. I’ll see if I can find the details this morning…..

Cheers. I should hopefully be able to scan codes tonight so will report back. If calibration is needed, I guess that is going to be a VCDS job in which case might end up as a warranty job rather than a quick fix at home.

[Adrian E]

Hiya

ACC info below (from ElsaWin)

Notes for service:

If the adaptive cruise control unit -J428- is removed during repair work on the front of the vehicle, it must be recalibrated after it is reinstalled →Rep. gr.44 and → Vehicle diagnostic tester in „Guided Functions“ mode.

t The adaptive cruise control is deactivated immediately if the driver applies the brakes.

t Pressing the clutch for longer than 20 seconds also deactivates the adaptive cruise control.

There's a couple of different VW/Audi tools that can be used for carrying out the calibration - VAS6190 and VAS6430 - the procedure varies by which one is available, so assuming it shows something indicative of a lack of calibration rather than a faulty sensor whichever garage you speak to needs to at least needs to have one of these tools (or a suitable generic alternative, if one exists)

There's a lot of potential comms between modules for ACC to work, so if you see anything related to these codes it might point to a specific area for any genuine fault rather than a lack of calibration:

- Adaptive cruise control unit -J428-

- Engine control unit -J623-

- Automatic gearbox control unit -J217- (only fitted optionally in vehicle)

- Airbag control unit -J234-

- Data bus diagnostic interface -J533-

- Display unit for front information display and operating unit control unit -J685-

- Control unit for front display and information control panel -J523-

- Multimedia system operating unit -E380-

- Trailer detector control unit -J345- (only fitted optionally in vehicle)

- Convenience system central control unit -J393-

- Onboard supply control unit -J519-

- Steering column electronics control unit -J527-/steering angle sender -G85-

- Cruise control system switch -E45-

- Control unit in dash panel insert -J285-

- Steering angle sender -G85-

- Control unit for electromechanical parking brake -J540-

- Active steering control unit -J792- (only fitted optionally in vehicle)

- ABS control unit -J104-

[Gad-Westy]

Brilliant, thanks for this. I'll hopefully be able to read codes later tonight and see where I go from there. Seems a strong possibility I'll need to speak to supplying garage though and get this covered under warranty.

Adrian E said:

Hiya

ACC info below (from ElsaWin)

Notes for service:

If the adaptive cruise control unit -J428- is removed during repair work on the front of the vehicle, it must be recalibrated after it is reinstalled ?Rep. gr.44 and ? Vehicle diagnostic tester in „Guided Functions“ mode.

t The adaptive cruise control is deactivated immediately if the driver applies the brakes.

t Pressing the clutch for longer than 20 seconds also deactivates the adaptive cruise control.

There's a couple of different VW/Audi tools that can be used for carrying out the calibration - VAS6190 and VAS6430 - the procedure varies by which one is available, so assuming it shows something indicative of a lack of calibration rather than a faulty sensor whichever garage you speak to needs to at least needs to have one of these tools (or a suitable generic alternative, if one exists)

There's a lot of potential comms between modules for ACC to work, so if you see anything related to these codes it might point to a specific area for any genuine fault rather than a lack of calibration:

- Adaptive cruise control unit -J428-

- Engine control unit -J623-

- Automatic gearbox control unit -J217- (only fitted optionally in vehicle)

- Airbag control unit -J234-

- Data bus diagnostic interface -J533-

- Display unit for front information display and operating unit control unit -J685-

- Control unit for front display and information control panel -J523-

- Multimedia system operating unit -E380-

- Trailer detector control unit -J345- (only fitted optionally in vehicle)

- Convenience system central control unit -J393-

- Onboard supply control unit -J519-

- Steering column electronics control unit -J527-/steering angle sender -G85-

- Cruise control system switch -E45-

- Control unit in dash panel insert -J285-

- Steering angle sender -G85-

- Control unit for electromechanical parking brake -J540-

- Active steering control unit -J792- (only fitted optionally in vehicle)

- ABS control unit -J104-

[Adrian E]

This might be useful info on likely costs involved:

https://www.vw-retrofit.co.uk/product/front-radar-...

Note that a new ACC sensor is not cheap……

[Gad-Westy]

Code scan from Carista gives me this:



I'm hoping the second code is a red herring. It clears okay with the engine running and hasn't come back. I'll have to keep an eye on that. So first one maybe just calibration?

Edited by Gad-Westy on Monday 9th January 19:25

[Adrian E]

Most likely, I’d speak to garage you bought the car from and see if they’re happy to cover the cost of having it looked at locally. Not sure what a dealer would charge for the job - can’t imagine it’s extortionate

[MattS5]

HiAsAKite said:

Gad-Westy said:

....stuff about his new S4....

Looks lovely.

Sports diff and adaptive cruise!
Be interested to know what yours is putting out.. presume 420+ (i think a remap alone without pulley gets you to c 400bhp)

If it's a pulley and a remap, you should be near 470-480bhp.

My B8 S5 was around 480 with the Revo pulley and stage 1 map