J.R.

Mine 100% definitely did not. 2006 Octavia, factory fitted cruise control. WTF would you need a light to tell you that your car is maintaining a set speed without you using the accelerator?

"I do like to be beside the seaside.............."

Except, unlesss VAG/SKODA have changed how their fuel guages have operated for the last 23+ years it will be telling you complete lies starting with moderate porkies at about 3/8 of a tank down to full on Bravo Sugar when the guage reads empty and the display shows zero miles remaining, in truth you will have 5-7 litres of reserve fuel available. Every vehicle I have tested it has been 7 litres, I keep reading 5 litres being quoted but I do not believe that is true, its probably the point at which people wimp out! - I don't blame them!

I recall when ordering front grille, bumper and interior trim plastic parts from TPS that there were suffixes for the colours but not the details or whether it was used consistently.

As the title suggests I have 3 or 4 litres of a 50/50 diesel/E85 mix left over from an experiment with my workshop heater, in the past I would just have mixed a litre at a time in when refilling the tank on my vehicle but am concerned about doing it with a Common Rail & DPF equipped engine, also the petrol in the past would not have contained anywhere near the same amount of ethanol. Am I being overcautious? My MK1 Octavia ran better with a few litres of diesel contaminated petrol added to each tank. What other suggestions? A dip for unseizing rusted parts, dose it into my 80's Kubota diesel tractor? I tried it in the diesel blown air heater to try and stop the problems of flameout at low power settings and also because it is much cheaper, it worked really well and for the first time I could use the thermostatic control but as I had expected the lack of lubrication wore out the dosing pump, it was putting out less and less fuel at a given frequency, the combustion chamber temperature gradually fell until once again the familiar E8 Flameout error. Had it worked better I was going to move to a 100% E85 and 2 stroke oil mix, I could do this with the remaining fuel but dont want to risk my new dosing pump when it arrives. Does anyone else use one of these Chinese Webasto clone diesel heaters? They are certainly quite good if you like tinkering, unfortunately its an obligation 😆

Wrap up warm, you will have a long wait!

Thanks, I did not realise that. Can you expand the topic by explaining how trim colours, finishes etc are differentiated in the part numbers? Assuming you know. I find it almost impossible to discriminate between a O and a 0 on a text/numeric string on a computer screen, side by side as I have typed the difference is clear enough but not amongst other numbers and letters, in fact its only when they are mixed the problem occurs. G00gle does seem quite good at coping with my handicap!

Ah but how many DSG gearboxes have you exploded? 😆 Don't respond, the answer will of course be none.

Looks like I can answer my own question.

That immediately starts alarm bells ringing with me, valve seating after a piston valve clash is pretty much binary, compression or no compression, lower than expected sounds like service receptionist Bravo Sugar number 101. It makes me equally sceptical of their supposed diagnosis which is an imagined scenario. What happened to the "excessive wear"? Did they fit the £550 of bingo parts only to find that it made no difference?

A cylinder combustion pressure sensor? What is its purpose? Thats a mighty harsh environment for any sensor. Every day is a school day, thanks for the correction @ApertureS

3 preheat plugs on a 4 cylinder engine, one of them with a pressure sensor, are you sure of that? Pre-heat plugs should have no connection to DPF regen frequency.

But you didn't quote or reference that in response to my request, you quoted "Sportline 206TSI (280 BHP). DQ250 DSG. I downshift from 2nd to 1st when the car is still moving. It’s known as compression braking. Letting the engine do the work. if the gearbox isn’t designed to do this then VAG need to not allow it in manual/paddle mode. one has to remember that the 1st gear ratio on the DSG isn’t as small as a manual gearbox (ie I never changed down from second to first in my last manual Octavia vRS as you’d end up being ejected through the windscreen due to the manual gear box low first gear ratio). it’s not like it redlines when I downshift. Might go from 2000rpm in second to 3500-4000rpm in first." I am still not seeing anything about breaking gearboxes.

I see it now, but I see nothing about "breaking gearboxes".

Who is going to tell my slots that they are not allowed to let air pass through them, you or me? 🤣

That noise is not the fans running which would be the case of an uncompleted DPF recycle so I believe your conclusion is incorrect. Several solenoid valves and vacuum actuators release on engine shutdown which can make some weird noises, my MK2 Octavia sounded like a cow expelling its terminal breath!

Well, although we’re mere mortals oh great one, expecting us to do that for you, is a bit of a stretch. 🙄 No need for the sarcasm, I was responding to the post from MArky that said "But will it select 1 or 3 if slowing in 2 with engine at 2k revs as per this post breaking gearboxes?" "This post" was not quoted and I could not see any post about gearboxes breaking from a downshift to 1st gear, so I was hoping he could tell me what (or where) it was so I could understand the question he asked me, I was not asking or expecting anyone else to do so.

2 things caught my eye: And Are you trying to regenerate without driving the vehicle? The engine will not rev above 2.5k RPM unless the road wheels are turning, you only need to roll forward a fraction but otherwise its blocked at 2.5k. If the vehicle will drive I suggest you take it for a run and allow the DPF to regen. I am making a lot of assumptions but your sistuation sounds similar to my Yeti when I bought it, I could not drive it until I had finished the repairs and got insurance & MOT, meanwhile I was starting and running it fairly often which brought up the DPF light, my attempts to regen at standstill made things worse, I drove onto the motorway and maintained 3K RPM and the regen was completed before the first junction, about 5 miles.

As someone who spent many years doing stress analysis of dynamic mechanical systems I can tell you that the response of materials even anisotropic ones to applied load is entirely predictable. The worse thing that can happen to any gearbox is to simultaneously select 2 gears at speed (through a worn or broken selector mechanism), a manual gearbox will turn into shrapnel, a DSG gearbox would strip one or both clutches leaving the geartrain intact, unless 2 gears were selected on the same layshaft (pretty much impossible). That I have never heard of a DSG gearbox engaging both layshafts at once and grenading (including the millions of miles of testing that Ricardo did) shows that the logic controllers do not have human like characteristics of panicking and being stressed interfering with their decision making. If you want to better understand the DSG gearbox I recommend that you download the relevant VAG self study guide, something I will do myself when I once again have access to a printer, I would like more detailed knowledge.

To avoid me reading through 4 pages of a thread only to perhaps find that it makes no mention of DSG gearboxes breaking due to downshifts from 2nd to 1st gear can you quote the relevant text please? To answer your question the DSG microcontroller does not have a nervous system, unlike some humans it will not become panicked or stressed through being unprepared for an event. It is always prepared to either upshift or downshift according to the circumstances, OK it can't upshift from top gear or downshift from 1st gear. I speak of it being a pre-select gearbox but this could actually be during a very short time interval during shifting, it may well be that when cruising at a steady speed in say 5th gear on layshaft 1 no synchro hubs are actually engaged on layshaft 2, it could take place at the gearchange point (as the first stage) once it has been decided by the ECU, I have not read the self study guide, I simply understand how the system works (unlike some it would seem) and not the finer details. Whether it pre-engages ahead of a gearchange or during would depend on the speed that the gearchanges are made, the faster the gearchange change required say on a Bugatti Veyron in sport mode the more likely to be pre-engaged ahead of time because of the inertias involved and the synchromesh loadings.

It would only fit a vehicle like the Yeti which has hard plastic side liners to the load compartment, they have ventilation slots in them which it would clip into. I have a feeling that the lower ones are obscured when a variofloor is fitted so your one may have become redundant but worked after a fashion when squeezed into the space behind the wheelarch on your vehicle.

Did either or both of the driveshafts & wheels turn when you did this? Running the transmission with the wheels off the ground especially in higher gears at low revs will result in a lot of backlash noise.

Must be a very weak flushing oil if you need to drive 200 miles at operating temperature, more likely to be just a cheap disposable engine oil. Back in the day when products did what they said on the tin and to hell with the virtue signallers you would run the enine up to temperature and for a maximum of another 15 minutes before draining, the hot fluid would come out so thin that it would shoot vertically across the top of my drainer tray burning me in the process. It was mostly paraffin with some engine oil, since then if I flush I do it with 50/50 el cheapo oil and paraffin, with this or proper old school engine flushes you should never drive the vehicle or put the engine under load. What flushing oil advocates that you drive for 200 miles and what ACEA/VAG specs does it claim to meet?

It's predicted with algorithms in the way that you describe, accelerating through the gears on a light throttle it will preselect the next one up, if you brake then after the speed has fallen to the threshold it will preselect the lower gear, if you put the throttle to the floor and the revs are not too high it will again preselect a lower gear to "kick down", this by it's nature and the urgency (how fast you open or close the throttle is monitored) will be more of a kick in the back as thats what you are asking for.

Do not drive the car and go to A&E about your carbon monoxide poisoning.