Afternoon all.

I traded in my 2ltr T|DI Octavia, and bought a 2015 A5 2ltr TDI Stronic in April this year, and it's been back in the garage for 8 weeks so far since.

The biggest issue is from 50mph upwards, there is a vibration through the pedal and cabin floor, similar to a mobile phone going off. Identical intermittent vibration. In addition to the vibration, there is an identical droning heard throughout the cabin.

Garage had it, and identified it to being an issue with the gearbox. Gearbox was pulled out and sent to a specialist who advised that it was the flywheel.

This has been changed, and the garage assured me that it was fixed with no further vibrations or drone. All great, picked up the car, onto the motorway, got up to speed and the issue was as prevalent as before.

Took the car back to the garage and questioned this, the mechanic confirmed that he test drove and there was no issues. Invited him and the service manager on another drive and lo and behold, the issue was still there.

Car is back in with them, and they have one more opportunity to fix it before I pursue for full refund plus comp.

Has anyone come across the vibration and sound issue, and has any idea as to what it might be. I had originally though wheel bearings but the garage confirmed when they had it elevated and running at speed, they could still hear it. With it being fwd, the rears wouldn't have been turning and therefore ending my theory lol.

 

I know it's not a Skoda however it's still effectively a VW DSG gearbox so hoping anyone else has experienced this and knows of a fix.

 

 

Cheers

@Lamont1980 is your car FWD or is it a quattro so has a propshaft (propshaft coupling). Haldex, so more possible issues than just a DQ250 DSG / S-tronic.      There are a few techs on the forum that will see your post hopefully eg @Crasher @ApertureS

18 hours ago, Lamont1980 said:

 bought a 2015 A5 2ltr TDI Stronic

 

50 minutes ago, toot said:

 is it a quattro so has a propshaft (propshaft coupling). Haldex

Is a 2015 A5 Haldex or Torsen?

 

A4/A5 quattros were originally Torsen but changed to Haldex to reduce emissions, but I can't remember what model year the change was made.

Cheers folks, It is just an FWD.

 

The dealer called me yesterday, a new mech has looked at it. Thinks it's the wheel bearings. 

 

If only they listened to me when I booked it in and I'd mentioned it's possibly an issue with the engine, but hopefully just wheel bearings.

On 15/08/2023 at 08:22, Lamont1980 said:

Cheers folks, It is just an FWD.

 

The dealer called me yesterday, a new mech has looked at it. Thinks it's the wheel bearings. 

 

If only they listened to me when I booked it in and I'd mentioned it's possibly an issue with the engine, but hopefully just wheel bearings.

Have they done the bearings yet? I’m curious as to what the vibrations are…

6 minutes ago, SteveTheElder said:

Have they done the bearings yet? I’m curious as to what the vibrations are…

 

I'd forgotten to update it. Bearings were done, and problem still there. 

 

It's now away to Audi for them to have a look at it. 

 

Started looking at other cars now, as I'm not confident that they will ever fix it. Only issue is that used car prices have risen again, which will put me out of pocket after the settlement is paid off and whatever is left over, plus whatever compo I can squeeze out of them. 

Frustrating or what!?

 

Hope they sort it soon, or you find a suitable replacement…

Yip, had to fight the dealer for 4 weeks to get a courtesy car from them. Back with an Octavia for the time being. 

 

I've questioned a replacement, but again, it's down to them finding one for the same or similar value. Can't see anything within a grand difference on website. 

Just had a thought about the noise & vibration - could it be the gearbox control unit not recognising it’s in top gear and repeatedly trying to change up?

Not a mechanical problem but a s/ware or sensor issue maybe.

I suppose anything is possible lol, will say that when I eventually speak with them lol. 

 

Cheers for the suggestion

@Lamont1980

Has their Master Tech how did not fit the new flywheel as that was farmed out to The Specialist they use going to support the requirement for a replacement S-Tronic box from Germany or any in stock in the UK since the car needs fixed for you or before going back on sale to the next unfortunate?

 

Or are they ruling out that it is the Gearbox and trying to find what is wrong from the book of ideas?

 

PS.

Did the SPECIALIST that was sent the box ever get a chance to see the car or drive it since someone else refitted it?

Toot, I have no idea. The gearbox specialist told them it was the flywheel, and the dealers mechanic fitted it. Test drove it, told me it was fine. 

 

I drove it for 5 minutes and it was just as before. Took them back out in it, and they agreed that it was still an issue. 

 

That's when they tried the wheel bearings, with no success.

 

I'm at the stage now where they are just putting loads of faults into a random generator and picking out whatever comes up first lol. 

 

My concern is that I reject the car, and they put it straight back on forecourt for someone else to buy. 

 

It's apparently Audi specialists that have it now, and that has been backed up by Audi actually emailing me with satisfaction surveys. 

Of course it's never occurred to them it might just be a tyre(s). Maybe combined with wheel alignment that cause them to wear abnormally, often just sawtooth wear pattern due to incorrect camber/toe in. Or just a duff tyre.

 

Fairly simple to check, just requires some logical thinking.

 

Having pulled the gearbox and thus stripping down the front suspension in the process, did they bother with a full 4 wheel alignment check/adjustment after reassembly? That should be normal practice and is needed before fitting new tyres to prevent more tyre damage.

Edited 30 August, 20232 yr by xman

Last update, I hope.

 

Got my car back last week, turns out it was the front wheel bearings that were shot in it. Should probably been with them 2-3 days if they had listened to me when I booked it in. 

 

Regardless, I now have a new flywheel, 4 new prem tyres and 2 new bearings and a working car lol. 

 

When I got the car back, there was a clicking/cracking noise when turning lock to lock while stationary, (heard it when attempting to reverse park). Initial thought was the CV joint, but a friend had a listen and he thought it was the sub frame bolts weren't tight enough. Took it back to the garage today and the mechanic said the same thing. 

 

He put it on the ramp and noticed that there was a heat shield, around the wheel arch I believe, which was bent out of shape, causing a bolt on the steering bracket to catch on it. Straightened that out and rechecked all sub frame bolts and all good. Steering also feels a bit lighter than it did when I got it back.