Skoda Fabia 6Y: Ladekontrollleuchte geht nicht (an) (GELÖST) | Beiträge 16+

Hey, is it true that you always ruin people's bedtime mood?
...the fact that you need 11V and then 13.8V after increasing the speed makes me think...
VKM ( = an internal designation for the lady with the (curious-)long nose) hasn't experienced a total failure yet.

Before the mares with the (small) Eutern start making accusations, I'll measure the D+ line to the BNStG myself, or I'll take a look at what "auditom" wrote using PN.

I will report: wink:

Best regards from Munich!

DieselBär30x hat folgendes geschrieben:

...the 11V and then the 13.8V after increasing the speed makes me think...

Why? This is the classic "self-start" of a generator without external pre-excitation, as mentioned above.

Anyone can test this by disconnecting the regulator plug, starting the engine, and then slowly increasing the throttle while monitoring the onboard voltage.

The effect is not normal. It wasn't like this before, but for years it was perfectly normal. Starting voltage is around 13.8V, and the voltage drops slightly with increasing speed. This is a Polo with technology from 1999. Not a modern car

Hello everyone!

According to Mulle's Polo description, the battery was completely drained after a few days.
However, I don't think the engine was idling for that long.
That makes me think, especially if it's similar to the Fabia situation.

Best regards from Munich!

mullemaus hat folgendes geschrieben:

This effect is not normal. It was not like this before, but for years it was perfectly normal. Starting at around 13.8V and with a slight drop in RPM. We are talking about a 1999 Polo, not a modern car

Sorry, when I said "normal", I meant the reaction of the (intact) starter motor to the defect of the missing initial pre-engagement

Hello there!

auditom hat folgendes geschrieben:

Hi Diesel Bear, take a look below, at the level of the starter, there are several cables plugged in, including the cable for the charging control. Pull all the cables in and out, and I'm 99% sure that's where the problem is...

...and he was exactly right with his 99% :wink:

The aforementioned connector is located above the cooler, on the left.
However, it appears that this area has already been patched, as the connector is connected to the original cables for D+(blue) and DF(brown/red(?)) coming from the engine cable harness using crimp connectors.
The current problem was caused by incorrect routing and, consequently, chafing on the repair line. If the yellow wires had been properly terminated and not twisted and tucked into a loop, the D+ would not have chafed at two points simultaneously.

Attached are self-explanatory images.

I can now confirm that the BNStG provides a battery voltage to the D+ line when switched ON, which can be easily measured. However, the 12V is also present at the DF connection, which initially caused confusion for me.

Thank you (also on behalf of VKM) to everyone for their assistance, especially to auditom!! :thanks:

Best regards from Munich!

If you don't do everything yourself, then?!

Thanks for the feedback.

Hey dude! :wink:

...as vwSchrauBär so perfectly put in his avatar:

Zitat:

fix it yourself - instead of workshop mess

Best regards from Munich!

Everything has been checked on this Polo.

Hey dude! :wink:

(OT) Suggestion:
If you take yourself and the Polo to the meeting, I'd be happy to plug my "interruption-seeking nose" into your wiring harness ,

Best regards from Munich!

EDIT:

mullemaus hat folgendes geschrieben:

Funny: Ignition on, after 2...3 seconds ALL lights go out. The car looks like a key in a pocket

On VKM's Fabia, the engine warning light also comes on and stays on until the engine starts! *note*
Dude, what engine variant is the Polo?