Steve Q

My first port of call would be to get a gearbox oil change to see if that helps. In failing that it might need a diagnostic check.

I had this and it turned out to be a worn engine mount.

On a petrol they're known as the leads but not sure what they're called on a diesel. You should be able to source them new.

It could be an issue with the wiring or module. Think the module is in the boot.

My advice would be to get a diagnostic check as it sounds like an electronic module failure.

My advice would be to contact the supplier or get an auto electrician to fit it. But factor in £500 for fitting

They can be retrofitted but it's not cheap to do. Think you'd be looking £400 odd quid in my opinion.

You'll get minimum gains tbh. But it's a filter with a life time warranty (,or used to be). You'd only see a benefit if you added a cat back sports exhaust abd remap to be honest. Bare in mind it would be classed as a mod too so insurance would need to be notified.

Been looking online but not finding anything. My advice would be to speak to the dealer who supplied the car.

If it's a 2017 model I dont think it will as it became more standard in 2018 onwards. You can get it retrofitted but it's not cheap.

Weeping is ok, but definitely keep an eye on it as you can bet it'll start leaking in the future. The cure will be a new gasket.

Normally fitting larger wheels regardless of tyre firms up the ride unfortunately.

Might sound daft, but you could always try pulling the fuse, as long as you've got the radio code. In failing that you could speak to any auto electrician or Audi specialist. You could go to Audi but they'll want big bucks.

I'd definitely try ebay first, as it's always my first port of call. I'd also set it to international too, to vary the search. Sorry I can't help more, but I do feel your pain as I've been experiencing similar issues with my a6 c5 with other components. Cheers Steve

I think the circuit boards are known to fail due to corrosion. As to how to get it out if the screw is just spinning is an interesting one.

All the wiring and electronics run along the bulkhead. I'd check to see if any of it is wet. Wet front footwells is a good giveaway. Water gets in via the battery tray if the battery tray drains get blocked.

I would personally try the gearbox service first as you'd be surprised how many times this resolves the problem. In failing that you could find a used part but it might need coding to the car. Cheers Steve

My advice would be to get a diagnostic check varied out. Rough running could be caused by a failing maf Sensor.

The 2.5 is a great lump and gave it in my a6 c5 which is on 335k. A shaking engine could be an engine mount as it was in my case. The engines can take a while to start like mine which I think is the glow plugs or injectors, and new ones can speed up starting. Cheers Steve

My advice would be to try ebay. I'm guessing it's for the air intake system/airbox? The 1.8 engine was used in various vag cars over a long production run so hopefully you'll find one easily enough

You're in the same boat as me. Im keeping my a6 c5 forever and finding parts now becoming harder to find as a lot aren't being made anymore.

I'm going to assume it's not leaking coolant abd temp gauge is normal. In which case I'd guess a sensor is failing abd a diagnostic check might be a good idea to see what fault codes flag up. Cheers Steve

It might be worth you speaking to the finance company if you're not getting anywhere with Audi. Along the lines it's not fit for purpose especially as it's applying the brakes for no reason. My other advice would be to get it booked into for a longer period abd get a courtesy car. That way you have leverage as they'll want the courtesy car back, but if your cars not fixed then they won't get it back if you see what I mean. Cheers Steve

Sounds like an antenna issue. Not 💯 sure but I've looked at getting the similar head unit to my a6 c5 abd think I need a different antenna. Cheers Steve

Depending on your model of Audi, you could fit s line springs and shocks which would lower it 30mm. Don't forget to get your tracking down after you fit any lowing kit. Cheers Steve