Steve Q

Well every day is a school day. Never heard of this issue before. 

Wowsers that's expensive for a dpf. Definitely worth getting a forced regen and/or get the dpf physically cleaned out. 

11 hours ago, wezar said:

Hi guys I have audi a3 2008 automatic mine is doing the same i done a gear oil change still doing it all other gears fine just reverse then turn engine off then on gear goes in we are all confused 

I'd recommend a diagnostic check to see if any fault codes flag up 

At least you can rule out the battery. It might be worth getting a diagnostic check to see if any fault codes flag up 

6 hours ago, wezar said:

Hi all did anyone fix problem my audi a3 2008 automatic goes in all gears but not reverse just flashing on dash turn engine off and on goes in i have changed oil and filter still doing it 😉 

You'll need a diagnostic check to see if any fault codes flag up. But I'd say it could be the megatronics unit. 

48 minutes ago, cursor-delta0g said:

Interesting, does each wheel have a sensor and battery?

I believe so. 

3 hours ago, BenA4Irl said:

Hi thanks for that, no I'm not in NZ, I just ordered a part that didnt work from there. I can't get back to dealer for a good while so was hoping to sort it myself.

Ah apologies 

Well done for having a look. Glad carpets are dry and no mayo. 

Yep separate systems. The AC system will leak water out to some degree. 

Glad you've got a warranty. You keep putting pressure on the dealer to sort. Please keep us posted on how you get on 🙂

On 6/26/2025 at 9:58 AM, SoundSilence said:

Hello everyone!

Here I am back with some major updates!

I picked up the car from my mechanic after completing all the work mentioned earlier.

The car is running great—in fact, I’ve already driven over 2,500 km with it since I bought it. There’s still a bit of uncertainty with cold starts, but aside from that, I’m really enjoying a solid and very pleasant car to drive on a daily basis.

Over time, I’m noticing a few "notes" about the car, including:

• I replaced the tires with some high-performance (and fresh) Hankook ones, which significantly improved driving comfort. Unfortunately, I discovered that 3 out of 4 alloy wheels are bent and need to be repaired. Indeed, at around 100 km/h, there’s a strong vibration in the steering wheel, and after 3 balancing attempts, nothing has changed.

• Regarding the uncertain cold start, my mechanic and I first agreed to use four full tanks of diesel with the addition of Bardahl Top Diesel+. I’m currently on the fourth tank and the issue persists, so we’re going to try something stronger, like mineral oil for 2-stroke engines, to try to "unblock" and clean the Bosch pump from any accumulated sludge. If that doesn’t help, we’ll proceed with replacing the camshaft position sensor and, if necessary, overhaul the pump.

• Fuel consumption has finally settled into a very interesting range. In fact, I’m now getting 13 km/l (30 MPG).

What can I say... I’m really happy!

 

Sorry I missed this. So glad you've got it back. You've done a great job and the cars s credit to you 🙂 

Have you managed to change the wheels and finding the cause of the cold start issue? 

46 minutes ago, Fra25 said:

 

Thank you.

You're welcome 🙂

16 minutes ago, Fra25 said:

SOLVED. I found an index for code in the Steering Column control unit, 3 of the values were incorrect, rewritten - warning symbols have disappeared and power steering is working again. Thank you for the advice.

Fantastic news, thank you for updating us 🙂 

Definitely could be a sensor (or the battery in the sensor at least). A diagnostic check would tell you. 

Don't forget your consumer law. If the item (car, TV etc) goes faulty in the first 6 months of purchase it is assumed the fault was there when you purchased it, therefore you're entitled to a refund. So the dealer you bought it from should fix this. 

If you've bought it on finance (even partially) then you could ring your finance company, explain the situation and tell them "the vehicle isn't fit for purpose" and as such you want to end the finance agreement. 

This should get the finance company to get involved and hopefully sort it quicker. As let's be honest, a finance company has a bigger legal team than you or I. 

Besides this: 

Are the carpets wet? If so could be a leaking heater matrix. 

Could be caused by a cracked expansion tank. 

Failed expansion tank cap. 

Is there any white smoke out of the exhaust? 

Is there any mayo looking substance whee you'd put oil in? 

You might find that the airbag system can't just be reset from a regular code reader and might need to be done by an Audi independent specialist or Audi. 

Don't forget your consumer law. If the item (car, TV etc) goes faulty in the first 6 months of purchase it is assumed the fault was there when you purchased it, therefore you're entitled to a refund. 

If you've bought it on finance (even partially) then you could ring your finance company, explain the situation and tell them "the vehicle isn't fit for purpose" and as such you want to end the finance agreement. 

This should get the finance company to get involved and hopefully sort it quicker. As let's be honest, a finance company has a bigger legal team than you or I. 

If you've bought this within the last 30 days then it's down to the dealer too fix free of charge, assuming consumer law is the same in new Zealand as it is here in the UK. 

No probs please keep us posted on how you get on 

Sorry to hear you're still having issues. Keep fighting because they'd love to charge you for the work if it was out of warranty! 

2 hours ago, gsmdo said:

Thanks. I have a Carly and will give it a scan…👍

Please keep us posted on how you get on 

On 4/7/2025 at 11:59 AM, K200CWC said:

Sorry for the delay in updating, front NS suspension unit replaced but the car is still dropping on all four corners, roughly 10mm on both fronts and 6mm on both rears after 6 days of being parked up; is this acceptable? 

Sorry for the delayed reply, did you get this sorted? Not sure it should be dropping after 6 days. I'd definitely say it's a leaking bag.  

4 hours ago, Anton8 said:

Car was returned today, no problems. Nicely valeted and fully charged. (80% only) 

Glad you got it back. Let's hope the recall gets done quickly so you can charge it 100% again 

10 hours ago, georgepamak said:

Thanks for your reply.

I just read the review in carwow and I think they imply that all new A5 models are mild-hybrid.

Don't really know what to believe here.

No probs. As I say I went off what's for sake currently on autotrader. And all the ones with 204ps aren't listed as hybrid. But looking at Derek's comment it looks like I could be wrong as he has first hand experience of the A5. 

Can't say I've heard of it. You could always get it checked by Audi or an independent Audi specialist 

Sorry to hear of your situation and for the delayed reply. 

p0299 indicates turbo under boost. Before writing off the turbo if get your mechanic to check the turbo pipes, as over time these can perish and where they attach to the turbo they can let sir through when under pressure but would look fine when not under pressure if that makes sense. 

Your second fault code 05171 supports my theory as it implies a boost leak from a pipe or similar. 

Welcome to the forum you'll find the members on here are a friendly and helpful bunch 🙂 yep it can be changed. You're probably best going for an aftermarket apple car play/android auto set up. You can buy these online.