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Wonder how many people are caught out by this, end up with the abs failure as they are unaware of the faulty sensor issue. If audi are not going to recall and rectify the least they could do is issue a warning letter to all the owners they have on record? I only found out as I googled it, I carry out maintenance myself so I looked to see the cause and fix. But not everyone lifts the bonnet on their cars so potentially audi are replacing these abs units needlessly, causing crippling costs to owners which could be easily avoided. Mine is 2016 so 7 years old, not expecting the older cars be recalled suppose, but this thread is a few years old now and new cars then were suffering from failure and still nothing was done by audi..... love the cars but why so expensive to fix so soon when cheaper car manufacturers carry longer warranties.... Edit.....as I work away and the q7 sits parked up for weeks at a time, I'm thinking, if the replacement of the sensor works, (when it arrives) I'm gonna buy another and keep it in the car so if in the future this happens again I can just changeout straight away. Don't have to drive anywhere and risk the costly abs issue resulting.....

Well, managed to get the manifold replaced. Here is the old one... <Rolf Harris> Can you see where it's cracked yet? </Rolf Harris> I can't believe how quiet the engine is now - this has clearly been blowing for a while. Still have a misfire/surge at certain throttles settings, though. I think I may have to look at the injectors over the winter...🤔 Hey-ho - maintaining an ageing Audi isn't for the faint-hearted...😆 Mike 😎

well my Audi is now sold, thank you all for your help in the past. Tony

You're welcome Tony, glad we could help. Sorry to hear your leaving, you're more than welcome to stay part of the club. What have you changed to?

Glad to hear it 🙂

It may be possible that this map if out the box and not a custom map which is entirely different is meant for the Quattro model. If it was a torque related issue this would be present from 3rd gear (top end). I'm not an expert, but I have worked in customer facing automotive fault finding with engineers previously for a couple of car manufacturers whom make performance/limited built road going production cars which had a reputation for such niggles. At high speed 1/3 of the front mass weight is distributed onto the rear axle promoting tyre hop or axel bumping on front wheel drive cars. Which higher torque you’re experiencing the tyres spinning with barely any weight to keep them stuck to the ground on uneven bumpy roads. The car will limit this by retarding the fuel and air to manage slip as the differential does not have torque vectoring. The car may not display the symbol for traction control as there is always a little give in rotational slip before it kicks in. You could try and turn off traction control and see if it makes a difference. So the issue may be feedback from the ground to tyre to track rod ends to differential. I don’t know much about the differentials in this model but I know they are basic (standard) for the 7-speed gearbox. Whereas the 8 speed auto boxes come with a trix’d out ‘real Quattro’ system with bias to rear axle. The other likely issue/ cause is fuelling issue, indicating the pump or injectors are maxed out and that vibration you are getting is a fuel starvation problem. Fuelling problems tend to be more prevalent at higher speeds or top end rpm because the air/fuel ratio tend to lean out, more so on diesel engines to promote good mpg figures. Only way to find out is to simply drive it absent remap and see if the problem persists. If it does this should indicate a purely mechanical problem (likely). If it doesn’t indicating the remap was faulty (most likely).