Breezy_Pete

Exciter wire is the thin blue one, one of the the two that connect via the little two-way plug. If the battery light works at all, that wire is OK, I believe. You might have some loom damage somewhere that's giving weird results when wet?

View from outside car. ECP suggested the wrong rating to another member based on his reg, so well worth a look. If you see 4 bar on it, please message me with your VIN so I can double-check the correct rating.

VCDS is ideal, let us know when the latest codes are read. Is there any chance that the fuel filter has been incorrectly replaced with a 4-bar rated one sometime? You should be able to see the pressure rating stamped into the rear end of the filter housing, just in front of the rear right wheel, inboard of the sill.

I visit Bury St Edmunds occasionally. If it's still giving trouble next time I'm heading there I'll aim to drop by for a look. What are you scanning with, or do you have to get a garage to do so at present?

That's how it should be. Was just checking that the PCV valve diaphragm had not ruptured and created a leak. Whereabouts in Suffolk are you?

Being careful not to get caught by the auxiliary belt, see if you can put a finger on the port shown arrowed here at the back of the engine, while engine is idling. Report what you feel on fingertip when that hole is blocked please.

Post them up (the exact numbers) when you have please. Also please check the brake servo vacuum hose if you haven't already done so, by eye and fingertip feel at each of the junctions between hard plastic pipe and other items like the non-return valve. Manual or auto gearbox?

VIN suggests front wheel drive, DQ200 transmission family.

Not sure, no personal experience of a faulty one, are you hearing any odd noises?

Check the freewheeling pulley.

Fraid I can't help with EGR knowledge, but with the headlight voltage, I'd expect lifespan to be inversely proportional to the square of voltage. See how you get on with reduced brightness though.

Yup. 👍

ABS control unit at top of this diagram ^ Dash instruments PCB is K, below. 410 is an earth splice point in main loom, apparently.

Doesn't matter as long as it says 507 00. If you want the psychological reassurance of something connected to VW Group, this is the Quantum version you want (not necessarily the best price, haven't checked: https://www.ebay.co.uk/itm/154621437616?epid=7032265364

13000+ results to choose from here, but double check before ordering that it really does say 507 00 on the pack. 50700 for sale | eBay PS, it doesn't matter what else it says, as long as it has 507 00. For example, all of them are likely to also say 504 00, that's fine.

If it doesn't say "VW 507 00" anywhere on the container, then it isn't suitable. The one you linked doesn't clearly show it within the link, but I know from having bought some myself (for a car that it does suit) that this one isn't rated to 507 00. You can just about make out 505 00/505 01 as the approvals that it does have in this screenshot. Not DPF compatible.

Regarding 'bullying tactics' for smart meter installation, this page at citizens advice explains that it is not compulsory, and gives a link to contact them to report any unwelcome pressure from a supplier. Just scroll down one third of the way to the heading "Refusing a smart meter". Getting a smart meter installed - Citizens Advice Personally I'm not in any way against them, and don't share the paranoia about supply throttling; I also have one. But when the 90+ year-old neighbours were told they must have one (which they didn't want), I was very prompt in finding the info in that link for them.

Fuse 31 amongst the ones you checked? That supplies the sensors' heaters.

21/08/2016

Thanks, but there seem to be multiple versions of the wiring, which I clearly didn't realise at the time. One that I looked at, on page 109/21 of the Octavia2 from May 2007> does indeed show it as what I wrote. Shame I didn't check for other, different versions.

No, you need one rated to 507 00.

Sell it at a 'kind' price to a local friend Ryan, get them to put you on their policy as a named driver, then just borrow it whenever needed. That way they pay all the bills, you get to use it.

Carbs were rather poor at giving a well atomised, correct ratio mixture compared with electronic fuel injection, so the environment the plugs had to work in was a lot more variable and generally worse for longevity.