paul.h

If not already done, it may be worthwhile checking the fuel pressure again now everything is sorted, in case the high pressure is still there. Haynes says the pressure sensor should maintain a constant pressure in the common rail by controlling a pressure control valve in the pump and the pump can generate up to 1800 bar at high revs. Probably just as well the fuel was not put in the 306, imagine the comments if that then needed cleaning out.

Out of interest, I had a look at BS EN 590 on Wikipeadia and it does not tell you what the main component is. A Shell SDS (safety data sheet) gives diesel as a mix of C9 to C25 hydrocarbons and petrol as a mix of C4 to C12 hydrocarbons, so a sample test should be able to tell if there is petrol present.

In the UK most/all of the recognised petrol companies have sold off their refineries and presumably buy it like all the supermarkets from the nearest refinery. They then add some of their own additives when the contract delivery tankers are filled. Possibly due to all this, it may be impossible for a customer to get a written guarantee but the different businesses in the process will have quality standards/procedures/specifications they will follow and their suppliers should meet. The fuel sold though should be to a certain standard which will be on the internet somewhere (BS EN 590). Hence, if Tesco have been supplied with contaminated fuel, they can make a claim against the tanker company and the fuel supplier - this will be part of their quality procedures. The fuel supplier should have kept records for several years of the production records, fuel quality tests and have retained samples in case of claims against them. The tanker company will have records of the deliveries/products carried/cleaning carried out on the tankers. So if Tesco have petrol in their diesel, it should be possible to trace back to the possible source and who is liable. The following is from an RAC forum posting in March 2012 on fuel quality, the last line of which could imply there is a route for a complaint to Tesco: customer.service@tesco.co.uk Thank you for your email regarding fuel. I have spoken to my Business Support Team regarding your query. They have advised me that, there are minor differences between additives in fuel sold by the different UK retailers. However, I can assure you that it is not correct that Tesco fuel contains inferior additives. In most cases, it will be the same type and dosage of additive that is contained in fuel sold at branded filling stations. I cannot, however, confirm that this would be the same for other supermarket fuels. I can also confirm that Tesco diesel fuel does not contain less cold flow improver additive in winter compared to branded diesel. Often it will be the same measure and type of additive contained in diesel fuel sold at branded filling stations. Finally, I would like to reassure you that Tesco has an industry leading and comprehensive programme of quality control testing on all fuel sold at its filling stations.

There is a note in the Navi Drive handbook of our 2007 C5 - if your navi drive should malfunction, press for at least 10 seconds on the DARK button to re-initialise the system. The dark button is on the radio unit.

Welcome to the forum. It could be the switch at the top left that the flap pushes against when closed is faulty. With the flap open, try pushing the switch a few times to see if this can clean up its contacts (or turns off the warning with the flap open) or maybe the electrical connector inside the wheel arch is a bit loose or dirty, or maybe the flap is not pushing the switch in far enough. The Citroen procedures do not say how to replace the switch (part no. 6554 GS) but a guess is if it can not be done from the outside, it is done by pushing or pulling it from inside the rear wheel arch and should not take long. Edited - see later post. If you do need to go under the car always use axle stands, there is a pinned warning on this - if the height sensor is caught it could cause the car suspension to drop.

Did you need to replace the BSI to fix the fault or just reload the software ?

It might be worth sending in a written complaint to Tesco and it is unlikely you were the only person affected.

The Navidrive on our 2007 C5 has a hard drive and the maps are loaded onto that and a cd is not used, so maybe the earlier ones are different. For a map update first I would ask a dealer.

Welcome to the forum. The Citroen parts diagrams for the car radio cd changer give the Clarion no. as well as the Citroen part no. For 6564QK for the 1.6hdi, the Clarion part is given as 9647427980 or 9663425180. So it may or not work. You can see the parts diagrams as a free service on the service.citroen website registering as an other professional non emergency services and as a member of the Citroen Owners Club. You can load a lot of tracks in to the Navi Drive but I have not tried, the handbook says it can take a long time.

If you look at the parts diagrams it shows a battery pack for the radio memory, so maybe this is the problem, it might need replacing. You can see the parts on the service.citroen website, as an other professional, member of the Citroen Owners Club. Look under Electric unit, car radio and 56 is a battery pack. Use your car VIN to get the right part no.

Our C5 has the Navi Drive fitted using a hard drive for the maps. In the handbook there is a note - if your navi drive should malfunction, press for at least 10 seconds on the DARK button to re-initialise the system. The dark button is on the radio unit. Looking at the parts diagrams, as far as I can tell, the GPS aerial is the same as used by the radio with GPS and GPM parts built in to the aerial base on the roof. There is also a navigation box connected to the aerial wiring but it does not show where this is but if it is similar to our C5 estate , it will be behind a panel in a rear corner. You can check the aerial on the roof and see if it is screwed on. You could also check the aerial wire is connected at the back of the radio. The following is a diagram of the aerial. http://127.0.0.1:6091/AC/img/inf_inc/uc/d5ap/d5ap01uc.jpg "l" Aerial - "m" GSM aerial - "n" GSM connector Coaxial green GT5 IS HU "p" GPS connector Coaxial grey GT5 IS HU "q" Radio connector Coaxial black RAKU2 "r" Supply connector. Radio amplifier Wire black MOS AMP 3 way (max consumption 80 A) "s" GPS module - "t" DCS module - 19 Aerial base -Aerial type depending on vehicle :A three-function aerial (GSM/GPS/radio)A dual function aerial (GSM/GPS) and a radio aerial in the rear quarter panel windowThe aerial base (GSM/DCS) is supplied by the coaxial harness.

I have just seen this note in the Navi Drive handbook of our 2007 C5 - if your navi drive should malfunction, press for at least 10 seconds on the DARK button to re-initialise the system. The dark button is on the radio unit.

The high engine oil level on the engine dipstick needs to be sorted. A high oil level on a diesel can cause the engine to run away and not stop when switched off since the engine can run on the oil as a fuel. There have been a number of cases reported recently in the Car Mechanics magazine, some of which have resulted in engine damage if not stopped by such as stalling it on the clutch. Maybe if there was some dirt inside the fuel tank and if the additives have dislodged it, then it could have blocked the diesel filter at the engine end but I would expect if this was the case it would take some time to happen. There was a report once of a van that had water in the diesel that formed a jelly that blocked the filter and this is apparently common on boats. Most likely cause of the poor performance that I would look for would be a sensor or pipe disconnected as part of the service near one of the filters that has not been reconnected or maybe an air leak around the air filter. I think though you should go back to the people who serviced your car.

The Citroen dealer does not sound right about not being able to do updates, maybe there is another Citroen dealer that would give you more confidence in their ability. I believe possibly the ecus and definitely the radio unit are coded to the car so can not be swapped to another car without being recoded. The satnav is built in to the radio unit and is not part of the engine ecu and if you are lucky, it may just need a battery disconnection again to sort it, which you could do. I have found the following procedure on our C3 and C5 has not given any problems: - remove the ignition key from the car - open the bonnet - wait a few minutes for the BSI to shut down - disconnect the battery negative terminal Wait some time before reconnecting the battery. When reconnecting - ignition key out of the car - reconnect the battery - wait a few minutes - insert the key in the ignition and wait a minute - turn the key to the first position and wait a minute - turn the key so the dash lights come on and wait a minute - start the engine - take the windows down and up to reset the anti pinch - reset the clock

The attached link lets you do a one off check for recalls on your vehicle, either using the VIN or registration http://www.citroenrecalls.co.uk/one-off-search.aspx

The air bag fault on the switch, if the airbag warning light is coming on and staying on - I vaguely remember something like this possibly on a C3. I think the switch needed removing and refitting since its connector pins had bent and may have needed a new switch. Could be worth a look but it may be best to do it with the battery disconnected or at least say 15 mins after removing the key from the ignition and opening the door so the bsi has shut down. Failing that, if the light is staying on, it may need plugging in for a diagnostic check. The mark 2 facelift 2.0 hdi also had 138hp and not 110hp but nothing wrong with that - you will get better fuel economy and will not have an exhaust particle filter to worry about. The overspeed/check/programming were on our last C5 and I do not remember using them in 6 years, so what ever they do they were not of use, just annoying having to scroll through them when using the stalk button to see mpg/miles etc. Overspeed may have been to set a speed at which a warning was given eg 70 mph so if you go over you get a beep. The Haynes manual for the C5 is worth buying, it shows the headlight aim adjuster screw is on the back of the light unit in the middle. It seems a bit odd they would both be out so far since it would not possibly go through an MOT, so as suggested, check the bulbs are fitted properly.

You can see the Citroen parts diagrams as a free service on the service.citroen website - register as an other professional, member of the Citroen Owners Club. There are 3 rubber mountings which all look similar except on the middle one the metal bracket fastening it to the car floor has the 2 bolt holes off set. On our 2003 C3, the rubber part has 2 sections held together by a strap so maybe it is the strap that has snapped in your case - compare it to the other 2 mountings. The Citroen ones seem long lasting (10 years already on ours) so I would not bother with aftermarket replacement ones. - 1 at the rear box which is a metal strap wrapped around the box, which if still the original exhaust likely will have corroded through. This has a bar that goes through a rubber mounting bolted under the car with 2 nuts. Aftermarket exhausts have the bar welded to the rear box. - 2 just in front of the rear box. This has a bar welded to the pipe and again goes through a rubber mounting bolted to the car. - 3 behind the front box. Again has a bar welded to the pipe and a rubber mounting bolted to the car.

I assume you have a pre 2008 model C5 since I could not tell from the post. I have had a number of different towcars and the C5 is the best, the suspension is one of the best features, keeping everything level and I would not go back to a petrol car - diesels give the better economy, less gear changing, easier to drive, nice and heavy for towing stability. Unhitching can be fun since as you wind down the jockey wheel the car will rise but keeping a foot on the car and the caravan handbrake just off will help it release. I have found strap on mirrors with convex lenses are best, with the straps crossing. I lost a clamp on one quite soon after purchase on the M61. First C5 was a 2004 2.2hdi hatchback, used for an Elddis Firestorm, MIRO 1000kg + battery and spare wheel and a few bits, MTPLM 1300kg. The hitch was a BPW without a built in stabiliser and we used a Bulldog blade type stabiliser - towed without any problems, flange towball so stabiliser bracket fastened behind the towball. Car kerb weight (or mass in service from the V5 document) 1560kg which includes 75kg for the driver, which was not included years ago or in older Citroen literature but is now the value used in the 85% kerb weight/caravan weight ratio. Current C5 is a 2007 2.2hdi estate used for an Elddis Avante MIRO 1334kg (terminology now includes about 30kg for water and gas bottles but not the battery), MTPLM 1499kg, Winterhoff stabiliser hitch. This stabiliser tends to let the caravan pitch (go up/down) more than the blade stabiliser and was worse on the old C5 but I think the estate has a stiffer rear suspension. This stabiliser tends to let the caravan sway a bit less than the blade one. This caravan also seemed a bit heavy on the old C5. Car kerb weight (mass in service) 1685kg. Usual recommendations apply on weight distribution, any heavy weights in the caravan over the wheels, hitch about 75 kg - the max of the car. Most of our stuff though is carried in the car since the caravan is kept in storage and the cars have a large boot. Tend to tow on motorways at about 55mph, fuel economy is good enough (about 30mpg) but drops at higher speeds, stability is good depending on weather - slow down if strong winds. Other things also applying to other cars, such as watching for passing coaches and wagons which as they approach push the caravan away and then suck it to them, slowing down going down hills, not going too fast (there was some research published a year or so ago with I think Bailey, with a model that showed as speed increases the stability decreases dramatically so eg what is stable at 50 would be dangerous at say 70mph), etc, come with towing experience.

Bubbles in the expansion tank could be - the expansion tank cap is not holding pressure allowing the coolant to boil - the engine is overheating, possibly due to the low coolant level (is the temp gauge normal, does the engine fan come on ?) - the cylinder head gasket needs replacing - is the exhaust showing more steam than normal, bearing in mind a diesel would not normally have any. A cylinder pressure test ought to show if the gasket has failed. - look at the water pump to see if this is leaking behind its pulley

Welcome to the forum. First thoughts are; - if you can, jack up the front of the car and see if it still happens or even tries to turn one way on its own - this should help discount tyre/wheel/wheel bearing problems. Parking the front wheels on magazines should also do this. - whilst jacked up, make sure the wheels can spin freely, no wheel bearing noise and the brakes are not binding - check the tyres are ok and same tread pattern - check the tracking has been done correctly so that the length of the track rods threaded bit to the track rod end joints are the same - check the front suspension coil springs are not broken - if the front coil springs have been replaced (which is likely since they are a common failure) everything may have been done up with the springs under a twisting tension (not with the wheels pointing forward) so there is a tendancy for the steering to try to turn easier one way to undo the twist. I think I read something like this but can not remember where. Also check the springs on each side are the same colour (bands) and are not odd ones in case just one side has been replaced. - lastly a problem with the steering rack or electric power steering motor. - if there is a noise when turning the steering, the bearings at the top of the front suspension struts may need replacing - I had to do this on one side of our C3 after the front springs were replaced but apart from the noise, it did not affect the steering.

The Citroen parts diagrams show the latch on the slam panel is available separately but not the part on the bonnet - so it must only be supplied by Citroen as part of the bonnet. So if you need the bonnet spring, the options appear to be one from a scrap car dealer or maybe a spring supplier. On such as ebay - search for a C3 breaking rather than bonnet spring since the latter does not bring up anything.

Assuming there is diesel in the fuel tank, it looks as if the fuel tank fuel pump may have failed - a quick look on ebay shows them at £100 to £150 but I do not know what a dealer would charge. It comes complete with the fuel tank level gauge since it is built in to this. It is possible to just buy the pump part and fit this to it but check that the fastening clips and hoses are ok to be reused first. I once had a petrol fuel pump fail on a high mileage Saab 9000 and this would not start - the RAC checked everything, it would run for a while on the easy start spray test and he checked there was power going to the pump before confirming it was faulty. This also came with the level gauge and I managed to just change the pump but had to source hoses and clips since the old ones could not be used. In the Haynes manual it shows there is a fuel pump fuse in the engine fuse box, no. F25 and 15 amp - I would check in your handbook if it is the same one and then see if it has failed. The wiring diagram shows the power from this fuse goes direct to the fuel pump, so if there is power to this fuse when trying to start the car it indicates that everything else is probably ok and it is just the pump, or the pump wiring/connector. To replace the pump it says the fuel tank has to be removed so not a quick job. However, ideally the fault code would be read first just in case it is something else to prevent any wasted effort/cost.

I can not remember seeing anything on the exhaust manifold gasket here. I have just started to put together a list of common problems and this will take time before it is complete so there will be many things still to add. I would imagine if this gasket had failed you would hear the sound like a blowing exhaust from the manifold, so make sure you give any potential purchase a good check. One thing worth checking are the tyres. Our C4 was a 2008 1.6 hdi 110 hp VTR+ with the standard lower profile tyres but this size were expensive when replacements were needed and the original Michelin Pilot Exalto tyres were no longer being made in that size in 2011. I also found the VTR+ was good at going round corners but on a long journey the stiffer ride was a bit tiresome.

Economy mode is a Citroen Peugeot thing to stop the battery going flat if things like the radio are not switched off after the engine is stopped. After about 30 minutes, things like the internal lights and radio stop working until the engine is started again. Then when a door is opened, the economy mode light comes on to let you know, it will be somewhere in the handbook but needlessly worried me first time I saw the message.

If the car is from a dealer it may be better to go back to the dealer or ask the previous owner if it worked before. Otherwise, if it is the type of aerial that unscrews you could check it is tight and also check if it is plugged in to the back of the radio. First though, I am guessing you have tried to tune the radio on all the different fm bands in case the car battery has been disconnected and it needs retuning. If the radio is a newly fitted replacement Citroen one and not the original, it may need coding to the car.