Ceenine

Another reason that this car is good for towing is that, even though it is front wheel drive, it is more than compensated by the relative short distance from the tow ball to the line of the rear axle (or where the axle would be if there was one). The 2.2 litre is the pick for me for towing by a reasonable margin.

I believe that I have tracked it to broken teeth on the fro plastic gears within the throttle body (air doseur) which twists the butterfly. I believe this is why the LHM comes into effect at the start of a journey. I have ordered a new one from BestParts in UK. I will report if this fixes the problem.

So you have loudness on and up the bass as well? The C5 must fairly vibrate. I was going to upgrade the speakers on my C5 lll but too much trouble to take off panel. Have upgradedC5 ll front speakers slightly as easy to get off grille. Road rumble precludes the motor car from being a decent hifi platform, so I don't get too anal about getting Dali quality.

I normally (have always) towed my 1 tonne camper van with my 2007 C5 ll 2.2 DW12 ted4 (twin turbo) saloon (sedan in Australia) because it has better pulling power than my 2011 C5 X7 2.0 DWCTED4 Tourer (wagon). The difference in kw and nm is very noticeable. I also find that the X7 has cushier suspension than the Cll although maybe in S mode it may be firmer. Having said that I find the difference in S to normal suspension mode in the X7 to be hardly noticeable on most types of road types (bumpy vs smooth). I have read that others have found this to be so also. Because of the cushy factor of the X7 I have continued to use the C5 ll for towing. Getting back to tow vehicles, there is a large difference in fuel consumption in these vehicles. This is due in part I believe due to the changed driving behaviour in a more powerful vehicle. When you have more grunt then you tend to use it. Are there any caravan users out there who have gone from the bigger motor C5 to the smaller or vice versa and if so, which is the preferable?

I own a 2010 C5 HDI 2.0 litre. Towing a low profile Campervan weighing approx. 1 tonne my fuel consumption increases (economy decreases) from 7.3 l/100 km to 10.5l/100km.This represents an increase of 40% odd. This seems to be considerably more than UK experience (I live in Tasmania). Maybe due to reduced density of air in the UK (except for the immediate vicinity of the Houses of Parliament of course)

My 2007 2.2 litre HDI sedan goes into limp home mode (LHM) normally at start up. To fix I turn off engine for approx 25 seconds and this fixes problem for the next couple of start ups (next day say). I have employed Autel diagnostic tool which throws up the following codes: 1351 Preheating relay circuit:Relay controlled and plugs never supplied 0487 Mixer supply position copy signal :EGR throttle opening too low 2100 Motorised throttle control: Short circuit between the wires 2111 Mixer butterfly position copy signal: Butterfly stuck during post operation Looks like a close examination of the mixer butterfly valve needs a good look at. Has anybody had similar problems . Unfortunately living in an area remote from a decent dealership (country side in Tasmania) I don't have expert help close to hand. The car rarely goes into LHM on the move, normally on startup and probably every third startup. Otherwise car performs well. By the way, the warning message is depollution system faulty and speed control faulty. When car doesn't go into LHM, only the depollution warning comes up. Has been like it for 6 months. All input welcome