Technically, with the apex between the red and green diagonal lines, timing is within spec. Before you're bored and move onto the next thread on oil banter, here's where the subtleties come in. OK, so that's the basic stuff out of the way. The timing graph is graded by fuel temp, but advance rises slightly (~.5*) after the motor warms up. Note that timing should be checked with the vehicle at operating temperature. Please refer to the timing belt procedure for your car regarding how to do so. Advance the timing, and the graph will 'come around.'Īdjusting the timing will not be covered in this how to. Sometimes on A3s and B4s VCDS gets confused when the timing is very retarded, and plots it as very advanced. If there is only a vertical yellow line, the timing is very advanced. If there are no yellow lines, the timing is very retarded. The apex of the horizontal and vertical yellow lines is where the timing is set.
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