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Please help! I have a musty smell inside my car that I can’t get rid of. I have changed the filter behind the glove box and set one of those air freshener bombs off but it’s still there. I have researched the problem on different sites and come to the conclusion that it is the condensation drain pipe that is probably blocked as there is no water dripping out from underneath the car when I have the a/c on full blast at the lowest temperature. Has anyone else had this problem and knows how to remedy the situation. Thanks.

No, the tyre pressures are always okay when checked. It’s not saying that a specific tyre is low on pressure as it would if there was a puncture etc but that there is a fault with the system. I have found out that it is not sensors in the valves that monitor the tyres but a combination of the rolling circumference when set which is monitored by the speed sensors/ ABS system

Hello Martin, We can see you have returned to the forum since yesterday’s post requesting an update. Any good reason why you are not responding?

We have sheep breaking the 20mph limit. Would an App cater for that!?

Welcome Ron and thanks for joining. ’Tyre pressures have been checked multiple times and reset…. ‘ So are you saying that the tyre pressures need resetting -in response to the TPMS warning - so they are actually lower? than the required pressure? Regards, Gareth.

Welcome Tom. Please do not wait around on here for a response, particularly since your link doesn’t work - well at least for me. This car is seriously trying to tell you something, and if it were mine I would not be using it until it’s assessed by a trusted local garage. Apologies for coming over as being dismissive in this case, but to me, this doesn’t seem to be a candidate for remote diagnosing, but needs to be seen and assessed. Kind regards, Gareth.

Cliff raises an important question here Martin. I can see you have re visited since this question was raised, but we await your reply.

Hi, I’ve recently noticed this loud knocking noise from the underside of my engine. Only really happens on cold start then gets much quieter. Have uploaded a video of the noise. Have read it could be cam belt/tensioner/ water pump issue. Any ideas anyone? IMG_0527.mov

Evening everyone, newbie here. Just purchased a 2015 Audi S7 V8 450bhp petrol with 96000 miles, lovely car but has just thrown up the error on my ODB2 o2 sensor signal stuck lean; bank 1 sensor 2. Is this an easy fix to do at home, or a garage job? If it can be done at home where can i find it? Thank you.

Thank you I will do

Hello Does anyone know the part numbers for the red front brake calipers on the S6? From doing some searching I found the numbers 4N0615107AG and 4N0615108AG, but on some sites they are referred to as being for other cars like the SQ7 and S7. Are they the same part? Thanks

No out of place noise, just normal jerk as if you let go off the gas and got back on immediately.

Aleksa. Is there a noise when the car jerks? A bang or knock for example.

Hello, I have a 2012 8p quattro and i noticed a jerk when moving off in first at almost full lock. It happens at very low speed and low and equal gas input (i would say under 30% of gas pedal). I would explain it as if you suddenly let off the gas and get back on or like car loses power for a split second. It does not happen when wheel is straight or slightly turned or full lock but somewhere in the middle. English is not my first language so i hope i explained it well and i look forward to your replies. Thanks in advance.

Hi All. Would really appreciate some support with an issue that has confused audi specialists. The MAF sensor keeps on blowing. When it does the car cuts out. Unplug the sensor, the car runs ok, but over fuels. Putting a multimeter on the ground pin in the wiring plug, the next to the middle pin I get 4.99 volts which I think is correct. If I them check the next pin I get 7.3 volts with ignition on and 9.5 volts with the engine running. I thought this was supposed to be considerably less? If that's the case any ideas where to start? Anyone know where I can get a schematic for the actual ECU? I'd like to track back through the loom and find where the excessive voltage is coming from. All help will be very much appreciated. Stu

TPMS fault warning coming on regularly and 2 visits to Audi dealership and they can’t find any fault. Tyre pressures etc have been checked multiple times and reset but no luck. Any thoughts as to the cause

Please let us know the outcome. Note that this is a forum in which information is supposed to flow two ways, so we do expect some sort of acknowledgement or response from members to those who having taken the time to answer without us having to nag.