800 rpm is the normal petrol engine idle speed with no pressure on the accelerator pedal. I guess eco mode would want to keep it there most of the time. However demands on the engine whilst driving would need to speed the engine up. I know when in sports mode the engine doesn’t like coming below 2000 rpm. In eco mode though if you come to a complete stop and lift off your foot it should come down towards 800. If not then something would be wrong.

 

Thanks.
Naturally, when the car stops, the rpm drops. The freewheel mode I'm curious about is when I take my foot off the pedal while driving, the rpms drop and the car glides.

 

There's a procedure to put the car into freewheeling mode, it's on Page 134 in my Handbook - the section on the automatic gearbox. My car doesn't appear to be in freewheeling mode when I use Eco, the Handbook doesn't make it clear whether freewheeling is active in Eco mode as standard or if the owner has to turn it on as described in the handbook.
I would find the procedure in your Handbook and see if that turns it back on.

 

There's a procedure to put the car into freewheeling mode, it's on Page 134 in my Handbook - the section on the automatic gearbox. My car doesn't appear to be in freewheeling mode when I use Eco, the Handbook doesn't make it clear whether freewheeling is active in Eco mode as standard or if the owner has to turn it on as described in the handbook.
I would find the procedure in your Handbook and see if that turns it back on.

Thank you. However, there is no detailed explanation of freewheeling in my car's manual.

 

The manual excerpt is to enable neutral tow, probably a mistake to use the same word (freewheeling) that's used for coasting (autotrans going to neutral to save fuel).

Coasting is not illegal per se, btw, my current car with an automatic ZF8 has it when ECO Pro is enabled.

 

The Handbook says never to tow automatics unless the front wheels are off the ground, therefore the excerpt must apply to freewheeling whilst driving, otherwise it would be in the Towing section.

 

Proof:

For coasting:

 

Can you find out what the state of charge of the 12v battery is?

 

The battery is good enough because I had previously charged it. Freewheeling started working again a few days ago. I don't think this has anything to do with the battery. I still don't know why.

 

Sorry if this answer is slightly vague, But I can tell you what my 508 sw does when the gearbox is in ECO.
If I'm driving and I take my foot off the gas the car will idle (800 rpm) as long as the road is flat or slightly down hill, ie the speed is staying more or less the same, if it starts speeding up, ie down a hill, it will engage the gear again to control the speed. If I take my foot off the gas and apply the brake, it seems to depend on how hard I brake, braking gently is will freewheel, brake harder it will engage the gearbox and change down the gears to assist slowing using engine braking. The other thing I have noticed now it is getting cooler here in the UK, the stop start only kicks in when the car has properly warmed up, and I think it also doesnt freewheel until it has warmed up.

 

Presumably you were displaying the rev counter when observing the above. What do you make of the blu line at the edge of the rev counter begging just above 800. I can't make out what it means.

 

You'd have to post a picture, cant see a blue line on mine, on any of the rev counters in the various different displays

 

Ah OK. It’ll be tomorrow now as its charging at the mo. Mine is the hybrid version and the iCockpit display is the ‘personal’ one with hybrid on the left and rev counter on the right. The rev counter is a white horizontal strip in this display and at the top of the strip between 850 and 1000 I guess is where the blue line starts and goes off to the right. If I’ve whetted your appetite you’ll have to wait for the pic! I had thought you were in that display as you described the revs above.

 

That could be your answer, mine is the straight diesel not hybrid, perhaps its related to the electric motor RPM

 

yes I agree. It would be good to know what it means though.
These are the two displays that show the blue line, dials and personal.