Join Date: Jul 2012
Location: Dundee Scotland
Drives: KIA C'eed SW2 ecodynamic
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Having an ongoing issue after flash update in an attempt to fix cruise control issues. I have lost the indication on the dash computer for most economical points to shift down. I still have the upshift indication display, but these points also seem to have changed. Has anyone else encountered this issue after getting a flash update. What rpm/mph does your sw2 computer jndicate changing from 2nd to 3rd and 3rd to 4th? Mine indicates changing from 4th to 5th at 38mph and to 6th at 43mph. At all my shift points, the power/torque after shifting is sluggish and the mpg has suffered greatly. just filled up on the weekend and was struggling to get into the thirties in town. wife drove to perth from dundee and back and it just hit 37mpg average. Before the flash, this was 47 in town and that same run to perth would have been mid fifties.
Sorry I can't offer direct assistance but your post arouses the technical spirit in me.
~ If you think the shift advice is wrong can't you switch the display off or just ignore it? The advice is probably ok for steady cruising speed but if it does not take acceleration/hills into account, it is surely in chocolate teapot territory. Accelerating briskly up to cruising speed with higher revs does not cost fuel.
~ I have read on the Hyundai forum something about an economy switch on the dash, though no one seems to know what it does. Does the Ceed have one and does it change the shift points?
~ There is no downshift point for better economy. Economy is always best in the highest gear that meets driving conditions. The response at low speed is poor because the ECU "knows" (by programmed parameters) how much fuel the engine can burn in any given conditions. The pedal merely issues an electronic request to the ECU and so the idea of "pedalling" in excess fuel in that doesn't burn doesn't occur. So called "labouring" is merely a driveline vibration and isn't some suggestion of internal distress. Other cars have expensive DMFs to reduce it.
~ If I am wrong in the above, consider how far in any journey you are operating in this non-optimal region. Let's say you travel 10 miles and the net distance travelled in a non-optimal gear is 1 mile and that this distance has a 10% penalty, the overall effect on consumption is only going to be 1%. So it is difficult to see how the change in indication causes the change you observe in fuel usage.
There is not a way to turn it off, but that isn't an issue for me. I am wondering if there is a problem with the update, as this is when the issues arose.
This still stayed in the range of 37-39 combined driving. It used to be that, upon fill up, the computer would estimate 572-630 miles to the tank an the avg mpg would zoom up to 63mpg and slowly settle to the high 40' s low 50' s
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