hand-made Start-Stop / generelles Startverhalten | Posts 64+

dieselmartin wrote:

PWM is basically just "on and off" But we understand.

I've expanded the statement.

Hi,

@Michael:

Quote:

No, I didn't mean the afterglow, but the pre-glow. That's why I said, just turn on the ignition without starting the engine. It takes significantly longer to preheat than the indicator light suggests.

Yes, I already understood that. I then added a description explaining that you can also notice the end of the afterglow when you're already driving with the engine running.

@Martin:
"This could potentially damage the head. In its simplest form, it's like a glow plug, but instead of a heating element, it uses a friction element. The friction element has a slightly larger diameter than the heating element. The device is screwed in using the standard candle thread." Since it is pre-coated with spark plug sealant, all the particles adhere to the grease on the grinding wheel and do not fall into the combustion chamber.
Not all Euro4 diesels have individually diagnosable glow plugs. My AXR has a centralized power supply for the glow plugs. And if the glow plugs don't have a built-in control unit and instead modulate the data onto the power supply line, then it's difficult to diagnose them individually . I'm writing this sarcastically because my father once paid Ford to "reset the four learning values of the individual glow plugs" because the diesel was extremely difficult to start in the winter. I then ordered new glow plugs and was surprised to see that they were powered by a common supply line. With 3 defective candles out of 4, the CONTRACTOR's workshop should have simply replaced the candles, instead of trying voodoo. The candle replacement helped to ensure that the "resetting of learning values" did not .

Regards,
Sure, here is the translation of the text from German to English:

"Micha"

How about the starter motor? Maybe they are different types, or perhaps one of them is already worn out.

Regarding our AGR Octavia, I also worry every winter that it won't start, but the starter motor just turns slower. However, I've always been able to get it started so far. The difference between the old (8-year-old) battery and the new one was not noticeable.

Mephisto wrote:

Not all Euro4 diesel engines have spark plugs that can be individually diagnosed.

Yes, in some cases, things can go completely wrong:
The BLT (96kw EU4 with preheating control unit in the Polo 9N platform) frequently reports individual spark plugs as defective, and it cannot be convinced otherwise, even with new spark plugs in the same cylinder -> a regular source of frustration for people who do not :twisted:drive these EU4 monstrosities: It fits the EU4 scheme = monitored spark plugs.

But many ARLs (EU3!) also have a preheating ignition system, and thankfully, the BUK (EU4 -> my signature) does not.