Thread: Setting cruise control to hoon mode

I have the same issue with my 05 D3. Drops of to much speed when hitting a hill. Even when setting the cruise control I cant just hit the + button and straight away remove my foot from the accelerater - if my foot comes off within about 5 secs of setting the speed then the disco just seems to coast down to about 5km/h slower and then it puts its foot down to get back to the set speed.


My old 99 volvo's factory cruise worked much better, maintained the set speed instantly and as far as its engine power could it maintained speed on hills that would have the disco dropping 5 or more km/h off the speed.


Cant see how its a fuel economy thing as mine seems to drop off the speed slowly (as if its been gentle on the accelerator) and then when it cant do that its all out foot to the floor (so to speak) acceleration to get back to the set speed. I would guess it would be more fuel efficent to maintain the speed with a faster accelerator response to the dropping speed

Originally Posted by Graeme

In the same vein that the fuel consumption calculation is optimistic, making fuel consumption look better.

That's quite easily corrected with IID Tools (or similar). Mine is now within 0.2l/100km of accurate after 20,000+km of cross checking against my fuel log.

Originally Posted by phl

That's quite easily corrected with IID Tools (or similar). Mine is now within 0.2l/100km of accurate after 20,000+km of cross checking against my fuel log.

My fuel consumption is very close to what the puter says
Andrew

FWIW, my MY16 over the first 6k is right on the money for consumption. No IID Tool et al adjustment. Wasn't expecting that given other threads. Must have got rid of the optimist factor in the latest release perhaps.

Originally Posted by phl

That's quite easily corrected with IID Tools (or similar). Mine is now within 0.2l/100km of accurate after 20,000+km of cross checking against my fuel log.

What did you adjust to change the accuracy?

Martin

Originally Posted by letherm

What did you adjust to change the accuracy?

From memory, you edit the CCF and add (or subtract) the number of l/100km, and I think there was a 2% optimism factor as well.

Originally Posted by phl

That's quite easily corrected with IID Tools (or similar). Mine is now within 0.2l/100km of accurate after 20,000+km of cross checking against my fuel log.

Mine is miles out... like 20-30% so far. Is this a permanent fix or do you need to leave it hooked up all the time?

Try again,meltdown and back online.
Take a few tankfulls of records and talk to your dealer they should do the adjustment as goodwill or even warranty.They will need the records to know how much to adjust.
Mine has been spot on since new,will be 2 in august.
Andrew