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41.3 million plus vehicles on the UK roads or parked up and less than 1 million being BEV,s and maybe 1/2 of those or more not big BEV,s.

It is widely circulated that road damage related to axle weight is to the 4th power so twice the weight then 16 times the road damage. But then not only heavy Audis etc are some part of the problem but truck which can now be 44 tonnes, six axles I recall which would have four tyres I presume on that axles which works out about 3 tonnes through a tyre. There are things called friendly axles I now read. Some cars might be putting about 1.5 tonnes on an axle or a bit less than a tonne a tyre. Massively less than trucks therefore using the power to the forth. My little Zoe is not that heavy compared to many road cars though quite a lot more than cars of a generation or two ago which were half the weight but then they had little safely equipment. Like so many current social issues which is deflection from massive under investment and taxes not be collected like against non-Doms. Decaying society from a morally bankrupt government. https://www.hagerty.co.uk/articles/opinion/opinion-cars-have-a-weight-problem-and-its-damaging-more-than-the-environment/#:~:text=We've known this since,than a one-tonne car.

Pure water will have the highest heat capacity, so will boil slowest for a given heat input.

retrofit some AUDI TT gear knob

Re the hot tar being poured to seal the edges. I seem to remember something about cyclists complaining that it was slippy to ride on. Might be a reason they stopped using it. All I know is it was a massive pothole that I hit that threw me arse over tit requiring a bone graft and screws to stop my left arm dislocating at random and nothing to do with hot tar sealing.

Weird. Attempt #2

Ur link doesn't work - can't see the pic. As for lift kit, here is one I took earlier of Gandalf pretending....

Someone will be to blame and if they were Right Wing Tories then we know who supported them. SN00654.pdf

Have a close look there, and around the cam cover, for loose bolt(s). I've fixed several oil leaks (not just on my car) by tightening up loose bolts.

Upskirting on a Zebra crossing? Just a thought, sorry for my mind!!

Its like I said, repeat a lie often enough, then the gullible will believe it. So all the damage is done by electric cars and none by far heavier vehicles then, Idiots don't seem able to apply logic and or think for themselves any longer.🙄

Elephant in the room / on roads. Light Commercials, not so Light Commercials / goods vehicles, heavy goods vehicles. Mini Buses. Black Cabs. Busses, Bin lorries.

Dozens or hundreds of other drivers will have used the same fuel from the same tank at the pumps. So if any question on fuel ask the Filling Station Manager if their tanks were mis-fuelled or others are having issues. Surely they could not lie because of just how easily they can be found out. Social Media, Local Radio, Press. The water and diesel does not mix. Think where the water is in the Filling stations tank if there is H20 and their systems & filters & out take.

Moi j'ai fait ça

Hi all, As many VAG cars, my Superb Mk3, is fitted with a DSG6 (DQ250) gearbox. Here is a tutorial to change its oil and filter on your own. You'll probably tell me: What's the point with it? Just have a look on Google or YouTube and you'l find plenty of them! That's true, but having done this exercise, I could see that it is very rare to have all information in a single tutorial. I will therefore try to be as exhaustive as possible. Here a list of some Skoda models also DSG6 equipped (I nevertheless let you check on your own, since depending on engine type or MY, some may be DSG7 fitted⚠️ instead of DSG6) ! - Octavia 2 - Yeti - Kodiaq - Superb 2 - Superb 3 First of all, here is the DQ250 gearbox: We're going to focus on the following items: #17: Filter housing - Tightening torque : 20Nm #18: O-ring - P/N N910 845 01 (normally sold with the filter) #19: Oil filter - P/N 02E 305 051C #26: Oil pipe - Tightening torque: 3Nm #27: Seal ring - P/N N 043 089 2 (normally sold with the sealing plug) #28: Sealing plug - P/N N902 154 04 - Tightening torque: 45Nm Not shown on this pic: DSG Oil - P/N G 052 182 A2 - 6l - Difficulty : 2 - Time needed : approx. 2h - Number of person needed : 1 - Necessary tools : ¤ VCDS software (or similar, To be confirmed) ¤ 24mm socket ¤ 8mm and 14mm Hex ¤ Torx 25 and 45 ¤ Ratchet or classic wrenches for disassembly ¤ Torque wrench(es) to apply specified torques (3 / 20 / 45 Nm) ¤ Short and intermediate extensions for ratchet or torque wrenches to enable easier access to screws ¤ Small flat screwdriver ¤ Filling hose VAS6262 ¤ Wooden toothpick ¤ Small fork ¤ Slip joint pliers ¤ Oil drip tray ¤ Twine (about 80cm long) or an old metallic hanger (wire one) ¤ Wide masking tape ¤ Rags ¤ Lifting means Concerning VAS6262, you can find one on numerous website at various prices. Without switching to a much more expensive pump model, I suggest taking a filling hose with a 1/4 turn shut-off valve close to the adapter on the can side. These ones are less widespread but still at affordable price and of course easier to use, since you can work without being 'showered' with oil. I've chosen this one on toolstogo-uk.com https://www.tools2go-uk.com/13664247/gear-oil-filling-hose-for-vag-dsg?g…=&Lng=en Dealing now with the DSG oil kit, you really have to be careful on the kit content ⚠️. Indeed some kits only content DSG oil and oil filter, but no sealing plug nor seal ring! ⚠️ Warning: Prices can really be different from a website to another (starting form 90€ up to ~200€ !) Chose the right one! After hours of searches and checks, I finally bought the Febi-Bilstein kit, which can be found on autodoc.co.uk for 100€-ish https://www.autodoc.co.uk/febi-bilstein/15821763?search=FEBI BILSTEIN Transmission oil change kit (171762) It effectively contains: - 6l of gearbox oil - DSG oil filter (#19) and its O-ring (#18) - Sealing plug (#28) and 2 seal rings (#27). By the way, I still don't understand why 2 rings?🤔 Note: I did not take time to ask for OEM spare parts prices by my local dealer. Step #0 : Preparation You need to lift the car high enough to get under the car and to get enough space to move your arms comfortably around the gearbox. Note: Though you've lifted the car, it needs to remain horizontal to make a proper filling with right oil level (see step 7). Step #1 : Air system removal Start with removing the air box. You first have to remove the 2 T25 Torx screws (#1), then unclip the cover on the rear face (#2) and lift it by rocking it as shown by arrow to avoid breaking the 2 lugs at the front side of the cover (#3). Finally simply push to the rear to release the lugs (#3). You now have to unclip the 2 lugs, where the 2 torx screws you have just removed where tightened (#1). Be careful for this step, since these 2 lugs may break. I've seen 1 or 2 pics of broken lugs on this forum. ⚠️ Then, you need to push the airbox backwards, so that its front side can 'rip' other the bonnet slam panel. Then unclip the hose (#3) and with a rocking motion back and forth, release the front side so that the airbox can be fully removed. However, do not hesitate to put one hand on the back of airbox to be able to pull forwards more easily (#4) and take the airbox out, which is quite large. This being done, you need to remove the air filter housing. This is simpler. Start with unplugging the small hose (#2) at the air filter housing outlet and unplug the air flow meter connector (#3). ⚠️Be careful: There's a small grey latch on the connector (if equipped) to unlock before pulling the connector off, otherwise it won't come out or you risk ripping it off. Now, remove the metal collar (#4) on the large air hose downstream the air flow meter. Use a slip joint plier for this. You can now unclip the air filter housing, which is simply fitted onto 3 shock absorber pins (#1). Pull vertically upwards. Don't hesitate to pull hard (continuously and not jerkily), it holds up really well! The 3rd pawn is under the air box (dotted circle), but it comes out quite easily when the other 2 are already out. Once the air filter hosing has been unclipped, all you have to do is disconnecting the large hose, downstream from the flow meter. Be careful to 'close' the hose to avoid any foreign object damage or even just dust towards the engine. Masking tape will do do the job! Step #2 : Battery removal To take it out, you need to remove a 13mm hex screw, which tightens a retaining bracket et holds the battery in place. This screw is on the front of the battery (#5 on previous pic). Then remove both battery terminal covers (by lifting vertically) to access the clamping nuts of both battery terminals posts (10mm Hex socket). Warning⚠️: Start disconnecting the "-" terminal post before disconnecting the "+" terminal post! For more safety, wrap them with masking tape as well if you want. Battery can be then removed easily, even if it weighs! Step #3 : Battery fixing plate removal You can now access the battery fixing plate, which is held by 2 10mm Hex screws (blue squares) and one 10mm hex nut. Sorry, the latter is out of the pic, but it can be found easily (just follow blue arrow). Be careful don't be too quick at this step, several fixing staples are indeed attached to the battery holder. You might be tempted to cut the tie-wraps, but these are attached to small brackets, which are simply stapled (red circles) or clipped (orange circle) to the battery fixing plate. Staples can be removed by simply pushing them with a flat screwdriver, while the clip-on holder can be pulled out with a small fork. There is now a small Control Unit attached to the battery fixing plate. Unclip the small lug (red circle) and pull the control unit vertically (as suggested by arrow) to remove it from the battery fixing plate: The battery fixing plate can now be removed. Step #4 : Oil draining You can finally access the DSG oil filter housing: A 24mm hex socket is necessary to remove it. Once done, protecting the filter location against foreign object damage or dust is necessary. Aluminium foil will do the job. FYI, here is the difference between a new filter and a filter with 60,000 km on the clock. Now remove the sealing plug with the 14mm Hex. Once done, the oil flow will be very thin, due to the oil pipe. Remove the oil pipe, using a 8mm Hex. After that, the oil flow is more important. Step #5 : Oil filter replacement Once the gearbox is empty, you can put back in place: - The Oil pipe (still using the 8mm Hex. Tightening torque = 3nm). If you don't have a torque wrench complying with such a low range. Take it easy! Just to give an idea, it is roughly the same order of magnitude as for closing a jam jar lid. (Sorry, this is the only simple image I found quickly ...). Well just keep in mind, it's light !! - The new DSG oil filter (don't forget to moisten the O-ring in its hole) - The new O-ring on the filter housing (don't forget to moisten this one too) - The filter housing, which must be tightened at 20 Nm (with the 24mm Hex socket) Step #6 : Reassembly Steps #1 and #2 can be processed in the reverse order to reassemble : - The battery fixing plate (and the small control unit) - The Battery - The air filter housing and the hoses - The airbox. Step #7 : Oil filling The filling hose can now be screwed in the sealing plug thread At the other end, donc forget to shut the 1/4 turn valve, before screwing it onto the oil can. To make it easier, you can attach the can to the bonnet with a 80cm long twine or an old metal hanger (wire one), that you can shape to transform it as a can holder. If you want to fill the gearbox faster, you just need to make a little hole in the can bottom (now upside down ) to enable air getting in the can. Of course, don't forget to open the 1/4 turn valve. http://img.xooimage.com/files1/b/e/c/whistle-1bb1.gif You have to fill approximately 5,5l. Once again, don't forget to shut the 1/4 turn valve upon each oil can change http://img.xooimage.com/files1/b/e/c/whistle-1bb1.gif. Warning: Do not make a hole in 6th can, otherwise there could be some side effects... http://img.xooimage.com/files1/3/e/0/33-2bc7.gif When the 6th can is half empty, shut the 1/4 turn valve, remove the can from the filling hose. Put now the free end of the filling hose into the dip tray. You can now open the 1/4 turn valve to start adjusting the oil level Step #8 : Oil level adjustment ⚠️ Now, start the engine and keep your foot pressing the brake pedal. Move the gear lever in accordance with the following sequence: P to R, wait 3s R to N, wait 3s N to D, wait 3s D to S, wait 3s S to D, wait 3s From this point, most other tutorial suggest getting back directly to P. I personally rather got back step by step, still waiting 3s after each step. Once back to P, you can remove your foot from the brake pedal, but keep the engine idling. Now, connect your VCDS cable and select the gearbox controller (02 Auto Trans): Once in the gearbox controller menu, there are 2 options: 1) Either get into "08 Meas. Blocks". then in the new window, get into "Group 019" and check the Temperatur cell of "ATF (Auto Tranmission Fluid)" parameter. This is at least what I've found in several other tutorials. But though owning an official VCDS cable, the "08 Meas. Blocks" is greyed on mine. (may be my Micro-CAN version starts reaching its limits). Hence I had to use option #2 below. 2) Or get into "Adv. Meas. Values" menu: From this point, type "trans" in the search cell to find all parameters related to the gearbox. In the results list, tick "ATF temperature - Transmission fluid temperature": Now with the engine still idling, just wait for the oil temperature to get between 35 and 45°C. It may take several minutes. Be patient. When oil temperature is close to 35°C, you can remove the filling hose completely. Don't worry temperature is increasing really slowly. The oil flow from the oil pipe starts decreasing. Once the oil temperature is within the 35-45°C range, you can observe that a slight amount of oil flows out via the overflow tube every 30 seconds, independent of the oil level. This is caused by oil pulses, which cool down the coupling. According to workshop manual, this oil quantity is not a criterion to determine the correct oil level. Therefore, they must not be taken into account when assessing oil level. You can now screw back the sealing plug (with 14mm Hex). Tighten it at 45Nm. From this point, you only need to stop the engine, disconnect your VCDS cable and put the soundproof housing back in place under the engine, and... That's it! Well, non counting the specific tools, you've just saved ~200€! Note: I'd also like to write special Thanks to @J.R., who helped me to translate some technical words I was missing! Much appreciated.👍 _

Make & Model: Skoda Octavia VRS 2.0 TDI 2014 Colour: Blue Mileage: 92500 Price: £8500 or offers welcome. Any help on price would be appreciated. Condition: Car is in very good condition for a 10 year old car. A stunning blue colour. The car drives very well and smooth with no issues at all. Summary: Gloss Blue paintwork Carbon effect interior trim accents VRS trim with sports seats Cruise control 18 inch alloys Red brake calipers Auto dim rear view mirror Auto lighting with LED Daytime running lights Auto climate control with left and right zones Tinted rear glass remote central locking with 2 keys Built in touch screen display adjustable centre armrest with storage Auto rain wipers 2 keys FSH incl cambelt and waterpump in 2019 £30 a year road tax Negative - 2 of the alloys have scratches on the wheels. Luckily not too noticeable due to the silver colour. Original plate is back on the car AX14 ACF. Any questions or requests for more photos welcome. Service History/Receipts/Recent Service work: MOT until 26th June 2024. 92500 miles with last service in June 2023. No service book as online service history. All prints out available due to full Skoda and Skoda sepcialist service history. Front brakes changed in Jan 2024. Collection: Leicester, 1 minute walk from South Wigston train station. Pictures:

Hi all, I am looking for some Thule roof bars for my octy mk3 estate. it seems that 7104 (foot pack) and 7112 (bars) are the right codes but does anyone have the old part numbers before Thule changed them a few years back?

SOLVED!!! There was a bad ground connection of ABS module in engine bay. The bolt was rusty and painted. Also there was a plastic ring between the nut and the bolt and some damage to the ground cable. I removed the plastic ring, remove every rusty spots, gave a little twist to the cable so the remaining wires can connect better to each other and voila!!! My initial measurement on the ABS plug wasn’t proper. I didn’t check the ground of the plug (pin 13), just measured the power feeds with another ground point. My bad!!! I will post some pictures about the finding. Anywho, thanks for the input. I hope this case will help others too. Bye.

Cambelt and water pump was replaced last in 2022. I bought the vehicle in 2023

Just for info road pavement construction and lifetime calculations use MSA or million standard axles and the calcs generally ignore cars and LGVs. There are factors to apply in the calcs for them but they don't usually have much impact or make much difference as the axle weights are small compared to HGVs. Also that reference document re weights and dimensions is effectively superseded now as Longer Semi Trailers or LSTs are now allowed to be used on the road generally and not just as part of a long running trial. If I remember I'll dig out the technical note for the calcs tomorrow as it's on my laptop from some analysis I did for United Utilities and Lancashire County Council last year. I'm pretty certain it's CD 224.

Its drying as we speak, hopefully satin black is okay to match the rest of the grill.

I know nothing about science, but i do know that a cars coolant system has a pressurised system for the Coolant / antifreeze / anti corrosion liquid. This raises the temperature at which the liquid boils. When i ran V8,s on LPG i used Water Wetter, So when i ran remapped Twincharger TSI,s i did the same.

Simple enough to touch the accelerator pedal without accelerating and it is back with gear engaged.

Non Dom Jonathan Hermsworth, 4th Viscount Rothermere, his family and those that own and run his Media Empire probably walk, cycle or just drive around in small city cars or use public transport.

Looks like you're relatively local as well, if you want to take a look.

Cheers. Will show the better half later as it's a car she was keen on.

If the roads were maintained better and the contractors and authorities were to exercise better control over the quality of the materials used, then the potholes more than likely would not have appeared in the first instance.

Bonus points for anyone that can work out what im up to here....

I'm not sure it makes a lot of difference. Yes, they may shut down transmission but there's now a motion detection circuit which is live all the time! Certainly both my 2021 Kessy fobs (with CR2032s) needed batteries changing just before 2 yrs.

i have a test drive tomorrow of an L&K 190 4x4. Let's see if this works... the V90s got kicked out because of the weird hybrid that did a bad job of controlling wheelspin, looking forward to trying the DSG 4x4. And having spent the weekend in a CVT swift, I'm also looking forward to a decent ride with DCC....

I'm not sure if you can get replacement sills but if yours is like mine was I couldn't justify a panel for the amount I was putting in. Shifting all that factory rubber stonechip was a messy mission, clouds of burnt rubber! Still, it was OK once done. A lot less rusty than an E46 coupe... 😕

Yes thanks for the thoughts exactly what I thought Thanks very much

It is the case that hold a folding warning triangle. No idea if empty or not.

It's astonishing some of the rises in standing charge, over 60p. Luckily, in greater London or south east is still at 40-odd pence. I agree cost of infrastructure upgrades should be built into per-kWh of electricity, not standing charge. Down here should be a noticeably more expensive than where renewables are located, up there. This makes so much sense. Why let the work van parked not doing anything? When it could be charging or even assisting the grid. Need to start thinking with the mentality that parked cars = wasted resource; plugged in cars = useful resource.

London might have 8.3 million people or whatever, but charging BEV,s / PHEV,s need not be all about London. The Green Cabinets are being trialled in Scotland and if the BT / Open Reach vans can charge at then and not hog ones the General Public need then good. http://bbc.co.uk/news/technology-67873890 ........... So today we are told that the National Grid needs £58 Billion spending on the Transmission of Renewables. The Cables from the North to the South and the pylons where the Pylons are required. Obviously much objection from some in England that there needs to be big pylons to get the electricity to them. Stuff the fact the big pylons are running from Aberdeenshire south to get the electricity to England when it is going overland. IMO Get them up where ever needed, and have the end user 100,s of miles away pay the cost of transmission not everyone including those that do not even use the electricity from that source. http://bbc.co.uk/news/business-68601354

There are a lot of variations of the 2.0L EA888 engine. There are several "generations" of engine, using different compression ratios, different variable valve timing (some on inlet, some on exhaust), different piston design, different turbos, with or without GPF, and a load of other different design changes. Oh yeah, and versions with direct & port injection vs those with just direct injection. Sometimes more than a remap is needed to reliably achieve high power outputs, even if the engines appear to be fairly similar. This video might be worth a watch. https://www.youtube.com/watch?v=spmOpP-1sQE

I've spotted this post: So the diagrams I've seen thus far have a rectangular cover which slots just over the Bowden cable mechanism that is installed in the seat, rather than this slightly larger version which appears to cover the hinge as well... Did some additional swotting on lllparts and found https://www.lllparts.co.uk/product/3G0886295B and https://www.lllparts.co.uk/product/3G0886296B which is different from what I ordered. Decided to order those from Skoda parts, as it looks like it covers the lower corner, which might be useful if I'm a bit more cack handed than I'd like when I start butchering the seat foam and upholstery of the seat cover. I think I've managed to get the red wire for the wireless charger into the requisite slot in the fuse box, so I'll need to actually procure some fuses! More luck than skill though as it's still relatively blind as it's at an awkward angle. The workshop manual suggests that the BCM is lowered down, but firstly the plugs themselves need removing. It's all quite tight down there, so not sure if it's just a case of persevering with my hopefully small enough fingers, or if there's a smarter way to get at them.

I'd be happy to wrap it all up nicely if you arrange a courier; i can give you weight and dimensions etc if that's a route you want to go down Alternatively i'm a bit closer to you this weekend (Cotswolds; Chipping Norton) and could take it with me if you were prepared to travel that far to collect

which is very nice and of course will cause no arguments when you get home and someone else is parked in " your spot" even though you have no legal right to automatically park on the road outside your own home but its still "your spot" ;o)

Yes, the same. Buy cheap ELM 327 OBD dongle and install VAG DPF app to phone.

Sounds like you have the basic greenline spec, rather than the elegance greenline, so the halogen headlights are correct.

@Poremetej I checked the operation of the high beams in my Octavia - with lights switched to auto mode, the first push forward of the stalk sets the system to auto HB if lighting conditions permit (with a small white icon displayed in the instrument cluster) The second press forward switches to HB with the blue icon displayed. The white icon is pretty easy to miss - I've never noticed it before.

When I had gremlins (random things not working), it all went away with a new battery. My car is 2018 and I replaced the battery last year.

There is an option to switch, but it is not convenient. When one of the two phones is connected, press the menu button and select phone. Then press settings and something similar to "connected phones". In this menu, you see the connected phone via AA or CarPlay. Press one time the connected phone and it will disconnect AA or CarPlay. After that, press menu again, go to Smartlink and select the device you wish to connect. Like I said, not very convenient, but as far as I know the only option without disabling wifi/bluetooth on the connected phone.

Here she is after an 8 month wait. Just had her Ceramic coated. 1.5 DSG Sportline

On our last trip to Scotland we stopped off at the Beinn Eighe car park near Torridon, hoping to see the local celebrity - Callum the Stag. He was there and was very happy to pose for photographs, and he took quite a liking to the Karoq. 71 plate Skoda Karoq Sport Line 1.5 TSI DSG in metallic Race Blue. (If you type Callum the Stag into Youtube you can see several videos shot by other visitors to the car park.)

Well I did have VCDS so I could monitor the oil temperature, but it was a struggle to get it up to 35C (it was fairly cold in the garage). I think in the end it just about hit 35, but it wasn't going to go any higher. So for you, I would suggest the times mentioned above are adequate to get close enough to the right temperature - assuming the ambient temperature is within reason. There is after all a 10C tolerance allowed, so it can't be that critical. And then as you say, remove the plug and let the oil drain out until it stops. Be aware that there is a process going on in the gearbox such that you will get oil spilling out every 30 secs or so, but this is to be disregarded. The manual says this: A small amount of oil comes out of the overflow pipe every 30 seconds, regardless of the oil level. This is caused by pulsation in the cooling oil for the coupling. Such escaping oil does not indicated whether the gear oil level is adequate, so it must not be taken into account when determining the oil level.

The only problems I have had with the Vredestein tyres in the snow / ice / cold is:- Got to work one day and exited the car then fell straight over on the ice. 😒 Being told: 'If I can't drive my £60k 4x4 up this hill then there is no way your Citigo will get up there.' 😁 Being followed by other cars with them thinking they can drive as fast as me. 1 Range Rover went up the bank to the side of the road. 1 Honda Civic went through a metal fence. You need to make allowances for your ability to stop quicker than any following car. Did drive down one road where the snow was so deep that the front wheels were lifted off the ground. Just turned the steering and reversed out. Thanks. AG Falco

Press the Car button on the infotainment a few times - it will eventually say why stop/start isn't activating. Mine sometimes says "power consumption too high" which I presume to mean it's busy charging the battery/heating my backside/doing something electrical. It may also say that the engine needs to be on because of the aircon (to stop it misting up on damp days). If you've only been doing short runs then the battery may also be low on charge as @freelunch says. I charge mine over the weekend every few weeks with a Ctek smart charger and that seems to avoid issues once the car is up to temperature (ie. water temp. gauge on 90 in my case).

Came across a new-to-me vacuum leak fault this morning that looks likely to be a common one on the 6-valve 3-cylinder engines as these cars get older. It was on a 9N3 2005 Polo, but same engine code is in plenty of Mk1 Fabias. The AWY engine code that preceeded this one is probably similarly vulnerable. Owner was asked "are there any fault lights on" and I was told "Oh yes, been on quite a while" So VCDS Lite was plugged in and revealed 3 Faults Found: 16555 - Fuel Trim; Bank 1: System Too Lean P0171 - 35-10 - - - Intermittent 16490 - Manifold / Barometric Pressure Sensor (G71) / (F96): Implausible Signal P0106 - 35-10 - - - Intermittent 16725 - Camshaft Position Sensor (G40): Implausible Signal P0341 - 35-10 - - - Intermittent I must admit I was surprised not to see a 'cylinder 2 misfire' code instead of all that, 'cos I've previously replaced coilpacks 1 & 3 on this car. I also viewed and logged a few parameters to see what was happening, and the inlet manifold pressure was a god chunk higher than I would have expected at idle, somewhere around 360mbar. Anyway, set about looking for air/vac leaks and found one, not one I've seen before. The servo vac hose was bodge/temporary repaired with gaffer tape at least a couple of years back, and that repair is still in place, and not leaking. Not that. Tested the effect of putting a finger over the pressure equalising port of the PCV valve and no effect, so that was passed. Happened to knock the output hose of the PCV valve as I moved my hand away from the previous test and heard a pronounced hiss/suck sound, accompanied by the engine bogging down. Aha! The shiny black plastic hose here is the one I knocked, and subsequent fiddling showed that an upwards knock near the steel pipe end had most effect. And this is why (hose actively held upwards from its resting position): Gaffer-tape temporary repair was enough to prove the point: The car initially wasn't at all happy at low revs, bogging down badly, but a few minutes running with a few on/offs and it all settled down. No fault codes returned during a short test drive. As a bonus, and not surprising to me following a similar situation on our Fabia last week, the brake servo suddenly got much more effective! Not sure what the best long-term fix is, presumably some rubbery hose of oil-resistant material, of a size that'll fit both metal pipe and hard plastic section. Item 38 in the diagram here; 03D103606L appears to be the part number of the genuine item, but it's spectacularly overpriced if this is anything to go by: https://www.allcarpartsfast.co.uk/vw-audi-seat-skoda/vw-audi-seat-skoda-03d103606l-venthose/ That's just one of the rubbery joining bits, not the whole assembly! I suspect the gaffertape solution will remain there, knowing the owners. And it'll probably be fine.