........and just as I  hinted at on my post of may 21st, here I am back again with yet ANOTHER query regarding my now 19 year old 2.7 Allroad. Sigh. OK so I'm heading back from our rental place on Hayling Island and get the chance to pass a large article on a VERY short bit of uphill dual carriageway so remembering turbo lag I drop 2 gears via the paddle and boot the throttle to sail past.....which she did, no problem. Half a mile later going up the long hill the glowplug light starts flashing. I'm in 6th doing about 56 or so and she normally romps up this hill in 6th no worries.....but 2 seconds after the light starts flashing she goes into 5th. Check I'm not accidentally in sport mode and paddle up to 6th again.....2 seconds later the car goes back into 5th and for the last 8 miles home she will not stay in 6th unless I'm on the flat and doing at least 55. The slightest touch of the gas pedal and she changes down a gear as if there's not enough power to stay at the gear selected.....but if I boot the gas she zooms away but with not quite ALL of the power I normally expect. So is she in limp mode? or is it something more serious .......I did a bit of online searching and most likely culprit it seems is the dpf......which according to the code sticker in the boot she DOESN'T have. This is bourne out by the impressive smoke screen laid down on full chat!! So I present the esteemed members of this august forum with this conundrum for your perusal as the owners handbook invites me to spend huge amounts of money at my nearest dealer (as usual and also as usual, not gonna happen!). Many thanks in advance for your opinions. 

Diagnose it with the code reader you said you were going to buy in your previous topic.

I've only just managed to get back to earning salary again due to a very unexpected medical emergency, so we have to build up our fallback fund which got expended during said emergency ( which was ongoing during my last series of posts incidentally) but as soon as funds allow I'll be looking to purchase a 'plug and play' multi-make obd scanner ....

13 hours ago, Solent muppet said:

I've only just managed to get back to earning salary again due to a very unexpected medical emergency, so we have to build up our fallback fund which got expended during said emergency ( which was ongoing during my last series of posts incidentally) but as soon as funds allow I'll be looking to purchase a 'plug and play' multi-make obd scanner ....

Hi for what its worth take the o2 sensor out and give it a clean or go to your nearest independent garage bat your eyelids and ask if for £20 would they just plug it in and tell you what's up.

Steve.

13 minutes ago, Stevey Y said:

 bat your eyelids and ask if for £20 would they just plug it in and tell you what's up.

Cheeky, but worth trying.

Not sure where the O2 sensor is but I'll give it a go....my local trustworthy garage are up to their eyeballs in work so I'm unlikely to attract their attention with a full strip, let alone a "come hither " tbh.🤣. I did see a mention of a loose or broken tube related to the turbo boost sensor......any thoughts on this would be welcome. 

4 hours ago, Solent muppet said:

Not sure where the O2 sensor is but I'll give it a go....my local trustworthy garage are up to their eyeballs in work so I'm unlikely to attract their attention with a full strip, let alone a "come hither " tbh.🤣. I did see a mention of a loose or broken tube related to the turbo boost sensor......any thoughts on this would be welcome. 

Hi you are about to play chase the ace, you can look at the o2 sensor but really you wont get very far without a plug in and scan, without this you can't disseminate which one of many faults it may be, the jury is still out on the full strip, ten mins to plug in and tell you exactly what it is.

Steve.

Yes, I'm gonna have to get a scanner.......re the strip, I expect (@ 66 years old) they might do it if I promise NOT to strip🤣. What I DON'T want to do is buy an Audi vw specific scanner as we're probably going to be getting one newish car to replace the audi and it's faithful shadow the 2001 rover 25 so I'd like something to scan whatever THAT car might be as well, so recommendations on that would be handy.....just to say at the moment after the medical emergency our setby funds are pretty empty and must be built back up before I start blowing cash on an all singing and dancing bit of kit more suited to a professional so yes budget end of recommendations would be nice. Ta everso. 

2 hours ago, Solent muppet said:

Yes, I'm gonna have to get a scanner.......re the strip, I expect (@ 66 years old) they might do it if I promise NOT to strip🤣. What I DON'T want to do is buy an Audi vw specific scanner as we're probably going to be getting one newish car to replace the audi and it's faithful shadow the 2001 rover 25 so I'd like something to scan whatever THAT car might be as well, so recommendations on that would be handy.....just to say at the moment after the medical emergency our setby funds are pretty empty and must be built back up before I start blowing cash on an all singing and dancing bit of kit more suited to a professional so yes budget end of recommendations would be nice. Ta everso. 

Hi about the cheapest good scanner is OBDEleven.

On 7/28/2025 at 6:35 PM, Stevey Y said:

Hi about the cheapest good scanner is OBDEleven.

Right,  been online looking at their website.......is it just a one off price or is there a subscription model behind the scenes? I'm not going to need updates etc as the Allroad will probably be history ( to me at any rate!) by say a year from now. Interestingly, when I went to use her this morning no lights, car behaving as normal......until I'd covered about 4 miles and the temp gauge was showing about 68-70 C when the light came on and a sort of limp mode came into play. When I got to the M3 at Camberley she was quite happy to accelerate (slowishly) to 65 - 70mph and hold that comfortably.....but coming back if anyone knows the Blackwater Valley/ Hogsback junction.....well she JUST made it up that hill at about 45mph and 2500rpm....oh dear. Get on the level bit and 60 on cruise control no problem. So it's the local garage WHEN they can fit her in or £125+vat for the nearest Audi dealer....or an OBDEleven scanner. The credit card's gonna take a hit but which model should I get? TIA.

Hi all, update time cos it's good manners etc. Right then, as advised by the (much esteemed I must say) members here present,  I  bit the bullet and got a scanner.  Nothing fancy, I just asked Google which scanner for an a 2007 Allroad and up came the iCarsoft VAWS V2.0 @£129 including vat and delivery from the folks who suppliedthe ride height sensors. Not, I know,  the one recommended here but Iit seems to cover a few makes and did indeed show some fault codes including a turbo overboost message.....but also a shedload of others I remembered from when me bruv hooked up his vcds following some battery and alternator issues I may have referred to in previous posts. Now I'm the first to confess that when it comes to modern car electronic systems I am deffo not the sharpest knife in the draw ( but I practice and teach anaesthetic stuff so good there), so I went and did summat that most might consider a little bit silly and erased all the fault codes...... yes, I  CAN hear you all slapping your foreheads from here! But......just taken the old biddy for a test drive. No warning lights, no limp mode and she is behaving herself even after a deep breath and a boot of the gas. Even the fuel gauge is working again, plus I can finally reset the service indicator too. So maybe it was all just a petulant sulk over.....gawd knows what. So for less than the price of an hour's labour at Audi, she seems to be in love with me again until next time........ and I get to keep the scanner! I'll keep you posted.....especially after the next long drive involving a real kickdown.....cheers all for making me do what I should have done a long time ago....I'm a silly boy I know. Ta everyone. 

Fingers crossed it stays that way.