Audi A6 (AEL), avviamento a freddo... velocità al minimo instabile

Quando avvio la mia Audi A6 (AEL, 1995) al mattino (avvio a freddo), la velocità al minimo oscilla tra 1000 e 750 giri/min e ha difficoltà ad avviarsi (sembra che solo alcuni cilindri funzionino correttamente).

Ho provato con:
* preriscaldamento doppio (non sono sicuro di questo termine in inglese )
* impostare il tempo leggermente superiore ai valori standard (utilizzando lo strumento di calibrazione TDI del vagcom)
* accelerando leggermente all'avvio

Ma nulla sembra funzionare

Potrebbe essere correlato a Segnale impossibile G80 (AEL)??

Grazie, in anticipo.

[Traduzione in corso...]

Hi Laurento,

are you sure all glow plugs are ok and heat well ?
Is the wiring of them as easy accessible as it is in other TDIs ? The 1Z allows to unplug the wire (in fact it's one metall-rubber piece) very easy by just pulling it off the glow plugs.

If the AEL allows this too, try to remove it and measure the resistance of the plug. It should be at 0.8 Ohms for a cold engine and cold plug.

After 11 years one or more plugs may be dead, which results in cold start problems and occurs not until winter.

m;

[Traduzione in corso...]

dieselmartin ha scritto:

Hi Laurento, are you sure all glow plugs are ok and heat well ? Is the wiring of them as easy accessible as it is in other TDIs ? The 1Z allows to unplug the wire (in fact it's one metall-rubber piece) very easy by just pulling it off the glow plugs. If the AEL allows this too, try to remove it and measure the resistance of the plug. It should be at 0.8 Ohms for a cold engine and cold plug. After 11 years one or more plugs may be dead, which results in cold start problems and occurs not until winter.

Many thanks for your reply

I already checked them, but using a simple light-bulb
I'll check them tomorrow using a tester and I'll post here the inspection-result

[Traduzione in corso...]

For 4 plugs the tester reports 0.8 ohm and for the remaining plug 0.7 ohm
May I make some other useful tests?