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C4GP 1.6 e-HDi Airdream |
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FrankBullitt
 
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    Member No: #19238
Joined: Apr 12 2011Location: Cambridgeshire |
sjamais wrote ... FrankBullitt, Abbeville is what you meant I guess, most certainly less than 1 tank away. Probably wise to plan your refuel location as the logical way to Normandy is motorway most of the way with diesel around €1.45-1.50, while it is more like €1.30-1.35 at supermarkets. Sorry, should have said - we have done the route before. There is (was) a really cheap diesel pump in Courseulles-Sur-Mer which we would fill up with, then top-up whilst stopping briefly near Abbeville. Shame the C4P doesn't have an override button like my other car which allows you to fill the venting space with fuel (so long as it's not too hot and you intend to drive away and use about a gallon). Have a great holiday and good drive through France - I suspect you'll be able to get 50mpg for the journey at least, but don't restrict yourself to 56mph just to achieve it! |
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sjamais
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So now back... not the holiday we had planned but nothing to do with the car so I'll stick to the essentials. Car now has 3500 miles on, 2200 of that was during our holidays. The trip computer reckons we averaged 44.7 mpg and that was a good percentage of motorway, fully loaded at 80mph with aircon on, so not as good as the 47 mpg of the lightweight Xsara but pretty decent I thought. The ECO counter conveniently doubles up as a reminder of exactly how much time you have spent in that damn queue... and there was one, Tomtom had us avoid the 60min delay at the QE2 bridge by throwing us into a 30min standstill at Blackwall Tunnel, still 30 mins better off if the other one was really there. The engine restarts to give you an a/c blast every so often, but doesn't seem to want to stop again. However letting go of the brake and depressing it again seems in that case to kill the engine again... The car is a pleasant drive on long stretches down, comfy and silent, nothing e-hdi specific. Again nothing e-hdi specific, but the mountain roads saw the end of the Auto mode, having too many unnecessary changes down on climbs for my liking. But in manual all went well. I even find it pokier than the xsara, must be the 45 extra torques. I am still driving around on cheap French diesel so will enjoy it while it lasts! |
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sjamais
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Another tank... 48.33 mpg calculated, normal commute, must have been a bit heavier footed... Car has got 4400 miles. |
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sjamais
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A bit more driving around lately, 500 miles with 45.7 l, always filling to first click on pump and pretty much always filling at the same petrol station. Not sure what that does for repeatability, but that method tells me I got 49.67 mpg this time around, mostly the normal commute, trip computer believes I got 52.2, maybe I am getting better at driving efficiently, or the engine is loosening a bit. Using manual mode most of the time now, as least when I don't like the gear change it is my fault... Car going in to the garage though, nothing eHDi related, just pulls left a bit and steering wheel not straight when going straight, kwik fit wasn't comfortable redoing the tracking because of the air suspension they said... |
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routemaster1
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 Member No: #574
Joined: Jul 08 2007Location: Dorset |
sjamais wrote ... A bit more driving around lately, 500 miles with 45.7 l, always filling to first click on pump and pretty much always filling at the same petrol station. Not sure what that does for repeatability, but that method tells me I got 49.67 mpg this time around, mostly the normal commute, trip computer believes I got 52.2, maybe I am getting better at driving efficiently, or the engine is loosening a bit. Using manual mode most of the time now, as least when I don't like the gear change it is my fault... Car going in to the garage though, nothing eHDi related, just pulls left a bit and steering wheel not straight when going straight, kwik fit wasn't comfortable redoing the tracking because of the air suspension they said... This is interesting as I'm getting similar numbers out of a 2.0HDi without start-stop. |
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sjamais
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Had the car 10 months now, it had its first 12500 miles service, so thought it worthwhile to share experiences to date. Overall still very happy with the car, great silent ride, very flexible engine, accepts to be driven around at 1000-1250 rpm (you must be in manual mode to get that though). Fuel consumption wise, reasonably robustly delivered 48-50mpg on my 40 miles a day 30mph average commute. We had a few trecks across France, some of which in snow blizzard, most of the rest doing 80 fully loaded on motorways or climbing mountains roads. Motorway economy comes at 44-46 mpg. Start-stop system continues to operate fine, learned a few tricks such as to release brake and press it again if the engine restarts while on standstill (for heating/cooling the cabin I think) makes the engine stop again. Now wondering if I'll ever see the 56.5 mpg claimed, maybe when the days get warmer again... Sadly, I only mostly do back road commute (30mph) or motorway here or in France, so probably never really combined cycle driving. But on my Xsara Picasso, I used to get the claimed combined 55 mpg on the back road commute... so I had great expectations for the C4GP. I have given up on the auto mode for the gearbox, manual works well for me and allows me to change gear earlier than the system would if left alone. There are a few things I would definitely like to be able to change if I could... Namely: 1) Stop the engine restarting when the front passenger door is opened, utterly pointless and quite annoying. 2) Up the speed at which the engine cuts off, the manual e-hdi cut at something like 13-15 mph, that would work perfectly on the EGS one too. I read somewhere a PSA blurb (Google psa e-hdi manual actively manage) that for users choosing auto (EGS), comfort was the priority and that the setting was lower for this reason, that manual drivers were considered to more actively manage their fuel consumption... my point of view? You can only get C4GP e-hdi with EGS, and the non e-hdi EGS variant has a better combined cycle figure than the manual car... so where's the logic? 3) Stop the gearbox from re-engaging 1st when braking to a slow halt, on a flat, do it when the car has stopped instead, this would of course also be avoided if the engine stopped at slightly higher speeds... sorry to labour the point... 4) finally, there is to me a better trigger than letting the brake pedal go to restarting the engine, I would rather have it restart when you touch the throttle again, allowing the driver to let go of the brake without restarting the engine. Anyone has ears at Citroen R&D?... As I said earlier, love the car, can't wait for the Hybrid4 variant though! |
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FrankBullitt
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Member No: #19238
Joined: Apr 12 2011Location: Cambridgeshire |
An interesting update, and as somebody who drives on normal roads I think the economy you get out of the C4GP is fairly decent; I suspect our 44mpg is for comparable driving. sjamais wrote ... 4) finally, there is to me a better trigger than letting the brake pedal go to restarting the engine, I would rather have it restart when you touch the throttle again, allowing the driver to let go of the brake without restarting the engine. Whilst starting is 'instant' compared to a starter motor, it still takes the best part of a second for the car to 'settle'; enough time to get off the brake and onto the throttle or put your foot on the clutch and into gear in a manual car; if you waited until the throttle was pressed, accessing busy roads/ roundabouts would be a proper nipsy-twitcher every time; as a compromise, I think the e-HDI sounds like a decent balance; I drove a manual A-klasse Merc with stop-start which insisted you sat with the car out of gear and on the brake which seemed a bit odd, but on a clutchless car it's fine. I suspect the engine starting when you open the passengers door is a safety feature connected to the bonnet-release; it stops a passenger getting out and looking under the bonnet, just while they have their hand on a pulley with their tie in a belt, the driver takes their foot of the brake and voila - mashed passenger...! |
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sjamais
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A good point about the safety aspect of engine restart, could also be addressed by preventing restart if doors are opened, would also stop people driving off before the passenger has properly left the vehicle... | ||||
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SteveWorks
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 Member No: #37983
Joined: Nov 05 2014Location: Cluj-Napoca, Romania |
One of the best Champagne regions in the world? What was your itinerary? I only got a chance to visit the Canard Duchene vineyard. ( - Click Here - ) | ||||
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BigJohnD
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 Member No: #82
Joined: Jan 22 2007Location: Hoylake |
Always debatable which is the best Champagne. Best determined by drinking many samples! Pannier is really good but this boot load of unlabelled for my wedding was excellent!! 
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