Recently purchased second hand Fabia 2018 regd  Went out yesterday the EPC and exhaust emission warning lights came on and stayed on and when I stopped a start stop error message came up as well any ideas folks intend taking it back to dealers as have a warranty but like to have some ideas prior to doing so

3 hours ago, Waulkmillfh said:

EPC and exhaust emission warning lights

are on. All this tells you is that you should have the fault codes read. The stealer should do this for free (Sale of Goods Acts).

Hi, welcome.

 

If it's a diesel it might need a good run to clear it out too, you could put more details of the car in your Model details, engine, spec level as that can help if you ask more questions..

 

It shouldn't be the case here but, if the car battery is low even if the car starts and the lights seem bright enough and there are no low battery warning messages the battery charge could be too low for the computers and can throw up all sorts of strange error codes and warning lights, so keep the battery in a god state of charge.

 

Especially if it's diesel but even with petrol these modern cars don't like lots of only short journeys (the battery alone) and need occasional runs or blow-out runs otherwise they clog up and wear down.

 

Let us know how you get on.

 

Many thanks for the replies all.

 

nta16 its a petrol Fabia SE TSI 999cc...yes we do only do short runs generally and not very often(live out in the wilds of Aberdeenshire) so battery management is definitely something to look at

 

@Waulkmillfh  Where are you near in the wilds of Aberdeenshire and since you got the car have you filled up with petrol from someplace?

Where was that, filling station and what petrol.  Is it E10 in now.  & how long had the car sat before you got it, as in had it old petrol in it?

 

What about servicing, when was it serviced last.  Have you had a look to see what the air filter looks like as is it clean.

1 hour ago, Waulkmillfh said:

nta16 its a petrol Fabia SE TSI 999cc..

You can put that info into your profile details so that it shows on the badge thingy (I've no idea what they're called) at the side of every post.  See mine for an example.

 

 

1 hour ago, Waulkmillfh said:

so battery management is definitely something to look at

You might want to think about getting a correct (trickle) charger for your battery for prevention rather than hassle and cure.

 

 

7 hours ago, Waulkmillfh said:

Went out yesterday the EPC and exhaust emission warning lights came on and stayed on and when I stopped a start stop error message came up

You want it sorted by the seller but if you have a good multimeter a quick check of the battery posts might bring you to my pet subject on here of low battery - though all or any of what rootoot has put could be the cause or even in addition to a low battery.

 

Good luck.

 

The 1.4TDI production stopped June 2017 as did the 1.2 TSI's.

 

Not sure if the OP's 1.0TSI has a GPF or not but it probably has.

1 hour ago, roottoot said:

Not sure if the OP's 1.0TSI has a GPF or not but it probably has.

 

There was certain models that had the GPF, but not all did, IIRC. Regardless, it's good to give the car some welly to clean it out.

Edited 16 December, 20214 yr by AnnoyingPentium

GPF's Regen  (clean out) differently from DPFs.

 

They were introduced to the Mk3 Fabia September 2018, so there were ones pre GPF 

 

I have not seen a TSI with a light on yet for the GPF, but plenty have been aware of them doing regens or misbehaving while doing them or maybe failing to.

 

 

Edited 16 December, 20214 yr by roottoot

3 minutes ago, roottoot said:

GPF's Regen  (clean out) differently from DPFs.

 

They were introduced to the Mk3 Fabia September 2018, so there were ones pre GPF 

 

 

 

Wasn't sure how much of a difference there was. I have been enlightened. I don't think our Dacia Duster has one, but I don't drive it, so I cannot confirm.

The Dacia Duster did not need ones as Dacia / Renault managed to get the emission figures at the time by other means to 

save being fined.

If i Turbo one now i think it will have. I do not know though.

 

VW 1.0MPI's do not have them 

Edited 16 December, 20214 yr by roottoot

3 minutes ago, roottoot said:

The Dacia Duster did not need ones as Dacia / Renault managed to get the emission figures at the time by other means to 

save being fined.

If i Turbo one now i think it will have. I do not know though.

 

Thanks. It's a 2019 reg anyway, so even then it probably wouldn't apply in that case.

 

3 minutes ago, roottoot said:

VW 1.0MPI's do not have them

 

That's the ones I was thinking of. Obviously I wasn't sure if all TSI's had them now or what, but I knew about the MPI not having them... kind of.

2 hours ago, roottoot said:

GPF

Totally forgotten about those.  I wonder how many people who only do short journeys wouldn't buy the diesel and now petrol's with PF if they knew about them and Start-Stop with its battery shenanigans.

 

If I've understood it correctly for the diesel the driving at least 37mph and 2,000 rpm has to be consistent otherwise the time duration is lost and you start all over again.

 

I'd check the battery before commiting your car to a dealer. Short journeys can be a problem because of the idiotically overcomplex charging system that's too clever for itself. I suggest that you disconnect the BCM (battery control module) sensor and take the car out for a good 20 mile or more fast run. 

There are plenty of posts on this group regarding the batteries and BCM. 

The BCM sensor is the little black connection to the negative terminal of the battery. Just release the plug and tuck it out of the way. This will allow the battery to charge to 100% and inhibit start/stop. 

So that means Look & check the terminals and see if tight.

 

Then pick up phone and call the Dealer that sold you it and see if they are going to look at the car when you arrive with it, or they want to send out their technician or if a Skoda Approved Used Car from a Main Dealer Skoda Assist.  

 

http://briskoda.net/forums/topic/500110-petrol-octane

 

Edited 17 December, 20214 yr by roottoot

Thanks all again for replies. Petrol - yes I think the car had been sitting in the dealers for a while before we bought it so maybe old fuel but I topped it up with Shell V Power from a reputable petrol station locally.

The car sitting may also I am thinking account for an undercharged battery?? OBD reader arriving today which may or not enlighten me further. EPC light didn't come on when I started it up yesterday but Emissions symbol did

and no Auto On Off error message on the screen. Interesting Youtube video whereby a stop start problem was caused by the petrol cap not being 'clicked' enough  

 

Re Exhaust management lights, and EPC lights.

Used cars at Dealers or Auctions are getting started occasionally, ran a few minutes, getting sooted up plugs maybe, getting flat batteries.

Generally in need of a bit of care and loving and once warm an Italian Tune Up.

*** Do not be surprised if then there are mis-fires, blasts of soot out the tail pipe, warning lights or fault codes stored.***

 

Some cars during lock down have sat a long time with oil and fuel that is maybe not the best now.

 

**Anyone buying a Used car or even a Ex Management Car / Demonstrator that has sat unsold for a while needs to remember.**

 

A Petrol car might have E5 Unleaded or Super Unleaded in from Pre September.

Or E10 from September to October which was the Summer Formulation or Super Unleaded E5 that was Summer Formulation.

These are more hygroscopic.  

 

Winter spec started arriving in Mid October in Scotland and the North of England.  

 

With Diesels with fuel in from before December than it is again Winter Spec and does not include the Anti-Waxing additive.  

Edited 17 December, 20214 yr by roottoot

ok OBD reader just delivered and it gives me 2 codes as follows : P003A $07e8   and   P003A $07e8Pd a quick google says The P003A OBD-II trouble code indicates the Electronic Computer Module (ECM) has detected an issue in the turbocharger or supercharger system, specifically about readings being outside acceptable parameters in regards to the engine's boost. Now looking through old service records in the owner manual folder last June (2020) there was a P334B (Boost Pressure Actuator) fault detected wondering if all this could be connected and that needs revisiting....anyway will be phoning the dealer shortly and Green Flag to recover.....

The scan tool has turned up some very useful info but do bear in mind especially with cheaper scan tools that they only point you in a general direction, don't take raw error codes as necessarily the exact answer.  But it might well be in the correct area in this case or it might be as suggested in other posts, I'd still on return of car check the battery and do (part) top ups with Shell V-Power for the equivalent of two tankfuls.

 

100% always worth checking the fuel filler cap has been fully tighten and the cap is in good condition and not faulty or damaged - it's also free , quick and easy to do.

 

yes thank you I will check the battery with my multimeter just now; have checked the fuel cap and is in good nick and tightly 'clicked' . Concerned about driving it with the warning light(s) however....

ok Battery is reading 12.28V which is a little low but low enough to cause these warnings folks?

1 minute ago, Waulkmillfh said:

yes thank you I will check the battery with my multimeter just now; have checked the fuel cap and is in good nick and tightly 'clicked' . Concerned about driving it with the warning light(s) however....

The problem with VW's over-complicated computer systems is that warning lights can come up for minor (or even no real) issues or may light when it's too late.  If something is serious limp mode or red warnings but not for everything and again they may light up too late.

 

As rootoot has put I'd push this problem over to whoever sold you the car let them decide or provide you with a courtesy vehicle.

 

It depends previously if the P334B was dealt with correctly or lazy replace a part, thing is you have the information to suggest this to the seller. - http://wiki.ross-tech.com/wiki/index.php/P334B/013131

 

3 minutes ago, Waulkmillfh said:

ok Battery is reading 12.28V which is a little low but low enough to cause these warnings folks?

Has the car been standing for a few hours and not run?

 

Was the reading from the actual battery posts, probes pressed in the soft tops of the battery posts?

 

12.3v is about 70% so reasonable but it depends how accurate your multimeter is, cheap modern multimeters I've found to be very unreliable and my not so cheap but not expensive multimeter gives very optimistic readings on my car battery.

 

Try turning your headlights on for a minute or two, use a watch or timer, and take another reading to compare.

 

Hi nta16 yes reading was from the actual battery soft bits and no car not run for a few hours.....when I was a lad cars were simple think a pony and trap is next LOL!!

5 minutes ago, Waulkmillfh said:

Hi nta16 yes reading was from the actual battery soft bits and no car not run for a few hours.....when I was a lad cars were simple think a pony and trap is next LOL!!

Try the headlights on and retest, give it two minutes, 120 seconds.

 

The basics of these cars are only just after pony and trap just that lots of bits have had to be added to this ancient technology to get ever more nths degree of mpg and more importantly trying to reduce the ****e coming off them, VW having been caught lying and cheating with its computer program perhaps that's why they got so complex.