T4 TDI: Dynamically Adjust Injection Timing with Bosch KTS 540

Hello!

My name is Peter, and I've been a mechanic for cars and motorcycles for almost 25 years. I currently work at a small, independent car repair shop. We currently have a Volkswagen T4 Multivan (men's car), a Volkswagen Golf Cabrio (women's car), and a Honda Africa Twin motorcycle (men's motorcycle).

Here's the translation:

'This concerns the dynamic fuel injection start setting on a VW T4 with a TDI engine (5-cylinder ACV engine).'
Until now, it has always been necessary to contact a VW dealer to adjust the fuel injection system.
Can this also be adjusted with the Bosch KTS 540? In the basic settings of the engine control unit, the KTS only displays the current injection start value in degrees KW? With VW, this is done via measurement blocks and corresponding values. What should the value theoretically look like when using the KTS?
'Does anyone have experience with dynamic adjustments using non-VAG diagnostic devices?'

Best regards, Peter.

Hello!

I don't have that specific bar or window on the KTS where the injection start point should be. It only shows me the current value in degrees KW. How should it be displayed?

Best regards, Peter.

But what I just saw... This value of 3.8 degrees before top dead center (BTDC) at idle: When is this value targeted? Is it during 'operating temperature'? Is it related to fuel temperature??

Best regards, Peter.

Hi,

So, free support for competitor products is not a must!
If you buy a product from Bosch, you should either contact Bosch directly or obtain a support key!

Best regards, Rainer.