Breezy_Pete

Good time to bump this thread. For the second time in not many months I've come across petrol Fabias with faults that appear to be related to the wrong pressure regulator/fuel filter fitted. One car should have had a 4 bar rated one but had had 3 bar fitted (2007 BME-code 3-cylinder 1.2 engine) and today's the other way round; designed for 3-bar but 4-bar fitted, a 2007 BBZ 1.4/16 valve. Unfortunately, the PR code that tells you which your car should have may not appear on the data sticker on the boot floor. You can get your full car data pdf free from a cooperative dealership parts counter person, via erWin Skoda for a small fee , via an Italian ebay seller for only 3 Euros (VIN decoder that will show factory options Audi VW Seat Skoda | eBay) or from anyone with a VIN-filtering parts catalogue. Ask me nicely by private message and that includes me. If the list includes the PR code 1A1, you need a 3 bar filter, if it is 1A3 you should have 4 bar. Handily the pressure rating tends to be stamped rather visibly on the rear end of the thing, just under the sill in front of right rear wheel. Don't rely on ECP etc. to necessarily find the correct one for your car by reg plate number look-up.

Are you anywhere near Oxfordshire, UK?

A seller using the name vagbolts on eBay has always given great service in my experience. Limited selection of commonly reqd items though. 'Refreshing' sounds a bit cosmetic, can't you just turn a blind eye?

It's several hours of work to remove and replace the chain cover, so not going to get adjusted unless by a wildly bored retired mechanic, and TBH they wouldn't have a car with one of these engines.

The tensioner on the HTPs doesn't even have any sort of ratchet mechanism, just a spring to do the job before oil pressure builds at start-up.

Nice idea.

I dunno. I reckon this is probably a gain for them. Instead of needing skilled techs spending many hours tied up doing complex cambelts they'll have more space and time for less skilled ones to be fitting questionably necessary brake discs and pads. Much better margins.

Drive the car a few metres and the warnings will magically disappear.

Answered above.

Part number of a genuine VW-group one is N 104 249 02. There ought to be one available at any group dealership I would hope. Near-faintworthy £6.63 + VAT each currently though! 😮 Yes, exactly.

Halfords sell correct fitting ones, if that's any help?

Nothing to do with the control unit that supplies the indicators. Not sure what it means on your car to be honest. In my hazy head this morning the EGR valve on a 1.9 diesel Fabia is vacuum driven, not electric. Might refer to one of the vacuum control solenoids I guess, but that is a complete guess. Or a spurious code. Know anyone with VCDS?

Engine-specific.

About time. Thanks for getting confirmation of this.

No it isn't toot. It shows - for the petrol engine, no specified interval. That's why I triple ringed it to make it clear! Please be more careful, it sems to be you that's misreading.

Oil light flashing is your first, most important issue here, doubt it relates to the ABS fault. Is there a beeping noise too? This is a red light, right? Not the coolant level one? An oil can picture? Have you found the oil pressure switch? Is the wire intact? Is the connector clean and dry on the inside? Photo of the strip fuses please. And have you checked the blade fuses to the side of them, under a cover? Never known there to be a real ABS pump problem; fuse or wire/connection damage well worth ruling out extremely thoroughly first.

Not as conclusive as I'd hoped. Not sure what else to suggest than a continuity test from ECU connector pin 46 to relay socket pin 2.

Steering wheel on the left side. 👍

Good work. Next step is to test the wire between engine ECU and relay holder for continuity (does it read 12V at relay socket pin 2, or something else, with relay not in place, and ignition on?)

The third (rear) image here Heater Motor Škoda 5Q1819021J (skoda-parts.com) suggests that a genuine fan will come without the speed control module, which appears to be separable, and fit in the approximately rectangular hole The speed control module is part number 5Q0907521D for your car (superseded by suffix E now). I would imagine you will want to swap it across from the old fan, assuming that the speed control aspect is working OK?

Yes, or a secondhand one with exactly the same number as this one, or the part number ending J, or an aftermarket equivalent that is compatible with those part numbers.

The OP sent me his VIN, which confirmed the non-existence of a fuel pump control module on his car. Form what he's already tested with respect to the relay (J17 below) I think the next things that need verifying are the feed and control line to the relay coil, as depicted below. Engine bay fuse 15 will be a good one to check, as it supplies the power to the coil (likely only when ignition is on or engine running), and the connection ringed which shows the control connection from engine ECU (Continuity test of that would be ideal). The various wires ending in rectangles are all fairly irrelevant to the investigation I think, though the one with 79 in it goes to the glow plug control unit, which will also be non-operational if the fuse is busted. G6 is the fuel pump motor.

Partly, but I'd also say it comes from experience/knowledge that cheap electric things with digital displays aren't always superior to simpler tech.

I thought so, the whole hose is £23.42 + VAT from a dealership; current part number 036 103 493 EC Pricey for what it is, certainly when compared to the price of an o-ring.

It could also be one of these, which are described as the 'rear' set of coolant hoses, but I think your photo is the front of the engine; though I guess that may be coming round from the back.