Hello! 

 

This is my 3rd Octy and I've used these boards via problem searches ever since the first, but for some reason left it until now to join. So firstly, thanks for all the advice over the years, even though none of you ever knew 😂

 

We've recently got a 2013 mk3 octavia, 2.0tdi. Huge step up from the first 2 we had, 57 plate 1.9 PD engine and then a 10 plate 1.6 tdi CR. 

 

Bought privately about a month ago, it's been well looked after and I've got no concerns this was an issue that was hidden at sale. Just one of those things. 

 

Anyway, driving today the engine warning light came on. Got home and plugged it into my Autel Maxilink and got the following 2 codes:

 

P023B - charge air cooler coolant pump control circuit low

 

P16BF - heater support pump short circuit to ground

 

My first thought was maybe the a/c just needs a charge, but a bit of Google mechanics points toward something else... Perhaps it is just a wiring issue, my question is where would I find the connections for these to check, and also what else can I do before I have to bite the bullet and take to a m£chanic 🤷‍♂️ I'm happy to have a go at stuff, brake pads/servicing/swapping easy parts is about my level 👍👍

 

Many thanks in advance. 

For the first error, check fuse 7 in the engine bay fusebox, should be a 10A fuse, beyond that you're gonna need to be under the car probing wires.

 

The next error, I'm afraid I can't find anything relating to that fault code in my Haynes search, but from some googling, it does look like it might be a trip to the mechanic.

First watch this video, admittedly I haven't watched it as I am unable to at the current moment, but looking at the description and comments, it also looks fuse related.
https://www.youtube.com/watch?v=4EcBhmwBErk

On 29/09/2022 at 23:52, SpaceWalrus said:

For the first error, check fuse 7 in the engine bay fusebox, should be a 10A fuse, beyond that you're gonna need to be under the car probing wires.

 

The next error, I'm afraid I can't find anything relating to that fault code in my Haynes search, but from some googling, it does look like it might be a trip to the mechanic.

First watch this video, admittedly I haven't watched it as I am unable to at the current moment, but looking at the description and comments, it also looks fuse related.
https://www.youtube.com/watch?v=4EcBhmwBErk

 Thanks for that. Went through the the engine bay fuses and found a 10a that was blown (not sure if it was 7) swapped it, checked what connections I could see. (all looked good) and cleared both codes. EML hasn't returned yet but cars only done a couple of miles since... So fingers crossed that's it. Though as matey says in that video, fuses rarely blow for no reason 🙄 so we'll see

🙁 Codes came back... Bummer. So looks like now its a mechanic job, problem the garage we usually use haven't got any availability for 2 weeks so I've got no idea whether it's safe to keep driving it in the meantime 🤷‍♂️

 

Fuel filler door has also stopped opening, which I know is a common one... I can probably change the actuator on that myself though I reckon.

 

Here's an image from the workshop manual on how to remove the filler cap if you need it

 

On 06/10/2022 at 16:27, SpaceWalrus said:

 

Here's an image from the workshop manual on how to remove the filler cap if you need it

 

 

Cheers for that 👍 did it today, just took it apart cleared all the crud away from everything, gave it a lube up and its working great again 😅

 

The other issue - Garage plugged it in and got the same codes pretty much. It's one of two pumps but apparently they can't say which one until they get into it. They even rang VW/skoda while I was there and they confirmed... Only once you locate them and test them can you figure out which ones had it... Potentially both maybe 🤷‍♂️ booked in next week, he reckoned its fine to keep driving lightly, just said keep an eye on temps/coolant levels etc

1 minute ago, Darealspoon said:

 

Cheers for that 👍 did it today, just took it apart cleared all the crud away from everything, gave it a lube up and its working great again 😅

 

The other issue - Garage plugged it in and got the same codes pretty much. It's one of two pumps but apparently they can't say which one until they get into it. They even rang VW/skoda while I was there and they confirmed... Only once you locate them and test them can you figure out which ones had it... Potentially both maybe 🤷‍♂️ booked in next week, he reckoned its fine to keep driving lightly, just said keep an eye on temps/coolant levels etc

Here's hoping the stealership doesn't rob you dry!

3 minutes ago, SpaceWalrus said:

Here's hoping the stealership doesn't rob you dry!

 

They're our local one indy one, and about half a mile down the road so I should hope not! They're happy for me to source whichever pump it is myself and they'll fit. They're anything between £50 and £100

 

Charged me nowt for today which alot of places wouldn't have done.

 

Fingers crossed

Hi, I just got a check engine light on my dashboard and received the same error codes as you did.

After a little bit of research I found the issue regarding the P023B, the plastic on cables of an electric water pump was melted causing a short circuit.

I was almost sure that the P16BF was a problem with airflow, because I also measured extremely high air mass at idling rpm. My thought was EGR valve, as I have almost 250k km in the car and it is a 2 liter diesel engine frequently used in the city. Well I removed it along with the EGR cooler, but both of them are surprisingly clean, which means that I am back at square one.

Could you please share your experience with the issue above? Probably I will have something similar.

Thx in advance!