paul.h

On the C4 Technical section there is a pinned topic of some common problems to look out for. The main expensive ones are on the 1.6 hdi turbo failure and some may also have a dpf which at that mileage will be due for the eolys fluid topping up and the dpf replacing - but beware of ones that may have had the dpf drilled through or removed since this is no longer allowed and can result in MOT failure and insurance not being valid. Off hand I do not know the mileage for timing belt replacement but could be 100k miles or 10 years whichever comes first. Due to the risk of turbo failure, if you need a diesel the 2.0 hdi could be a better buy. If you insist on a 1.6 hdi check the service history and that it has had annual oil /filter changes using the correct oil and at no more than 12k miles, preferably done by a Citroen dealer, but even this does not guarantee the turbo will last.

Welcome to the forum. The parts diagrams suggest the horns are located behind the front bumper at the left side when looking forwards from inside the car. Possibly removing the undertray may allow access to the horns which are held by 2 bolts, without needing to remove the bumper. Replacement time is about half an hour so not much would need to be removed for this.

The pressure sensor is Citroen part no. 1920SZ (or 19207R for an old part) and the seal 19208G but sometimes the seals come with the sensors. These part nos. should be checked using your VIN. There are 2 pumps but it will not be the fuel pump in the tank that is the problem. The pressure regulator on the high pressure pump (pump located on the engine) might be available with part no. 193338 (check using your VIN) and it was the Haynes manual that says it only comes with the pump so possibly it is wrong. Out of the 2, the pressures that can be read all come from the pressure sensor so you would not know if it was wrong without replacing it or fitting a high pressure gauge (needs to be over 1000 bar so one is not readily available). A quick search suggests the sensor may be around £85 and the regulator about £175 so you may want to try for used parts. Also the sensor is on different Citroen models so does not need to come from a Picasso.

Welcome to the forum. What about polythene disposable ones, 100 for £10.19 here http://www.autosessive.com/products/60664/100-disposable-car-seat-covers?gclid=CPnc-Zjr-cgCFYQfwwodtw0I0g Then no need to worry too much about appearance and will be quick to fit/remove and may not affect any airbags in the seat and no need to think about having to clean them..

From the parts diagrams it looks to be next to the crank shaft pulley.

Welcome to the forum. The message is probably telling you the problem and this would be confirmed by reading the fault code generated when the engine management light came on. Note that a low cost code reader is unlikely to work on your car since diesels only had to be OBD2 compliant from 2004. There will a pressure sensor on the fuel line before the fuel injectors and this may be faulty giving a high reading. According to the Haynes manual, it is located on the underside of the fuel rail feeding the injectors. If it is not the sensor, then it could be the pressure regulator which is part of the fuel pump. A new seal should be used when the sensor is replaced. Your Citroen dealer will provide the correct part if you use your car VIN. You could have the fault code read and the pressures read using the correct diagnostic equipment but to pay for this will cost more than replacing the sensor yourself. If this does not cure the problem and a new fuel pump is needed then this would be expensive.

Welcome to the forum. On one of the door pillars will be a sticker which has the tyre pressures and tyre size. They will be in bar so to convert to psi multiply by 14.5 and the pressures may be a range depending on how loaded the car is. On our 2010 C3 1.4 petrol 95 bhp, it gives front 2.1 to 2.3 bar, rear 2.0 to 2.5 bar, space saver spare wheel 4.2 bar or normal spare wheel 2.5 bar. Converting to psi gives front 30.5 to 33.5 psi, rear 29 to 36 psi, space saver spare wheel 61 psi. I usually set the pressures at the higher values 33.5 psi front and 36 psi rear. To save having to do the conversion with psi to the nearest 0.5: Bar psi 2.0 29 2.1 30.5 2.2 32 2.3 33.5 2.4 35 2.5 36 2.6 37.5 2.7 39 2.8 40.5 2.9 42 3.0 43.5 You can read/save/print in sections the handbook from here for cars from about 2007 but then most will apply to earlier cars http://service.citroen.com/ddb/ . You may need to select your language first. Citroen handbooks do not include the tyre pressures. Sometimes the handbook can be found in one of the drawers under the front seats.

Pity about the code reader. When you have the dpf replaced, I would keep the old one and in the future you might clean it if you ever get access to a jet wash. Then you have a spare.

Thankyou for this topic. I have posted links to this and your C8 topic on the Lexia in the Petrol Diesel & LPG Injection section in a new topic Lexia, Diagbox and PP2000 Topics.

Simple has written some excellent posts which can be found here: - changing the language http://www.citroen-owners-club.co.uk/citroen/topic/23277-diagbox-v777-multilingual/?do=findComment&comment=86856 - a scanner for using on a C8 plus installing a Lexia http://www.citroen-owners-club.co.uk/citroen/topic/23088-anybody-found-a-diagnostic-scanner-that-works-on-citroen-c8-22-hdi/ - setting up Diagbox http://www.citroen-owners-club.co.uk/citroen/topic/23435-diagbox-7xx-from-preparation-to-operation/ - information on updating Diagbox from 7.82 to 7.83 http://www.citroen-owners-club.co.uk/citroen/topic/23505-diagbox-v782-783-819-update/ - information on updating Diagbox to version 8.xx http://www.citroen-owners-club.co.uk/citroen/topic/23611-diagbox-8xx-upgrade/?do=findComment&comment=88261 - this topic is to automatically update the VCI firmware http://www.citroen-owners-club.co.uk/citroen/topic/23627-xs-evolution-lexia-vci-automatic-firmware-update/?do=findComment&comment=88339 - this topic from 13/11/2016 includes the latest update http://www.citroen-owners-club.co.uk/citroen/topic/24278-lexia-pp2000-from-diagbox-835/?do=findComment&comment=91490 There is some information here from the C5 section on possible suppliers and installation of a Lexia http://www.citroen-owners-club.co.uk/citroen/topic/22863-lexia-3/ A topic from Wirdip on the software to use Lexia/Diagbox/PP http://www.citroen-owners-club.co.uk/citroen/topic/24236-best-software-for-working-on-c8/?do=findComment&comment=91322 A topic from Robbocop33 on installing a Lexia http://www.citroen-owners-club.co.uk/citroen/topic/24263-any-good-instructions-around-for-lexia-3-diagbox-install/ Note this topic will be revised as more posts are available but the posting date will not be updated, however, the date in the title will be revised to reflect the latest version.

Possibly it could also be a bit warmer in France so the engine does not need to warm up quite as much.

Removing the dpf does not seem to involve much: - the air con compressor may need moving to one side and suspending. If there is an engine undershield this may need removing. - remove the heat shield, undo the pressure tapping from the dpf, note the relative position of the dpf to the catalyst (possibly mark them with tippex/paint/marker pen), undo the clamp holding the exhaust to the dpf outlet pipe, undo the large clamp holding the dpf to the catalyst and then lower the dpf down from the catalyst. - to refit it the dpf needs to be lined up to the catalyst (a groove on each is lined up), the clamp around it fastened, the exhaust fastened back (a U shaped positioning shim is shown put on the join to line up the exhaust and dpf before the large clamp is tightened), the pressure tapping fastened and then the heat shield put back. A check is made for leaks. The OBD 16 pin diagnostic plug on the car is located under the heating panel behind the console ash tray which needs pulling out. When you plug a diagnostic tool in, do it with the key out of the ignition, wait for the tool to start up and it will say it is not connected or something similar, then put the key in the ignition and turn it so the dash lights up, then wait for the tool to start up again, read any fault codes and descriptions given and write them down. If the tool can give freeze frame data also look at this since it will give values when the fault occurred which may be of use and you can also write these down. At this point you can delete the fault code - the tool should give instructions on how to do this but it is always done with the dash lit up but the engine not running. You can run the engine once the tool has said the codes are deleted. Switch off the engine and remove the key before you unplug the tool.

If you are thinking of using the car for towing, the auto has a lower maximum towing weight - saloon - manual 1740 kg, auto 1390 kg, towball max manual 70 kg, auto 57 kg. - tourer - manual 1670 kg, auto 1290 kg, towball max manual 67 kg, auto 53 kg.

Engine fan or maybe fuel cooler ?

The parts diagrams suggest it may be at the driver's side behind the headlight, possibly in the inner wing. Times to replace though are about 40 minutes or if the engine and gearbox are removed about 6 minutes.

A sales brochure for a 2010 2.0 hdi 160 bhp engine gives mpg urban/extra urban/combined/CO2 for the manual and auto versions as manual 41.5 / 64.2 / 53.3 / 139 auto 31.7 / 50.4 / 41.5 / 179 For a 2009 car the figures may be worse than this but you may find the info in a handbook for the correct year / engine power http://service.citroen.com/ddb/ The CO2 increase will affect the car tax quite a bit £130 vs £225. I have never had an auto so can not comment on how good they are.

Despite the limitations of the Navidrive I still use it on our 2007 C5. Sometimes I will put in a town/village but without a street name to help you get there but also it will show traffic delays.

Welcome to the forum. The following is from Citroen's procedures: Clamp the 2 hoses in the engine compartment, remove their clips and then uncouple them from the heater Inside the cabin, remove :The lower right part of the fascia (it shows the heater to the right of the pedals so this may be for a left hand drive)The bolts top left and bottom right on the heater matrixStill inside the cabin:Unclip the lever at the right side of the matrix from its shaft and then release :The lever ( right hand side)The plate (left side of the matrix)Remove the heater radiator.

It is Citroen's number for your car and can be found on the tyre pressure sticker on one of the door pillars, it may be 4 or 5 digits and may have letters after it. It will be the longer number at the top and below this will also be the paint code. You can also get it from any receipts from your Citroen dealer and it will be on the car Warranty and Maintenance book inside cover. If you use the Citroen parts diagrams it is listed under Characteristics.

I would try your Citroen dealer. Generally parts from Citroen dealers are not that expensive compared to other makes of car I have owned and often pattern parts do not fit as well.

Welcome to the forum. The best workshop manuals are the Citroen service box ones which come on 3 dvds to install on your pc and cover all Citroen vehicles. These are available from such as ebay. They work using internet explorer but do not require to be connected to the internet. They also include the parts diagrams but you can also see these as a free service if you register on the service.citroen.com site as an other professional and a member of the Citroen Owners Club. Then use your VIN (VIS) to find your vehicle. A handbook for the base vehicle from 2008 can be read/copied/printed in sections from here http://service.citroen.com/ddb/ A look at a sales brochure for the base vehicle may list the options for different wheels and the parts diagrams will also include the options under the Mechanical/wheels section.

If the battery had lasted 11 years then it has done well, I replaced the one on our C5 at 7 years since it was not holding a charge but it really needed replacing before that. Just as well all those other faults started to show before you did any work on the brakes and then pointed you in the right direction for the fix. I will add this to the common problems topic.

The Haynes manual has the details you need, if you do not want to buy a copy they are sometimes in libraries. The exhaust catalyst/dpf is at the front of the engine. http://www.amazon.co.uk/dp/0857335766/ref=sr_1_1?ie=UTF8&qid=1446400165&sr=8-1&keywords=c4+haynes

Welcome to the forum. How many miles has the car done ? Do you have a warranty with the car, just wondering when you are doing all these jobs on a car from a dealer who should be responsible for it being up to standard ? The 1.6 hdi is known for early turbo failures and frequent oil/filter changes using the correct oil are needed to help it last. The soot may be a leaking gasket or pressure tapping on the exhaust/catalyst/dpf but the oil leak if on the inlet to the turbo may be reducing the oil flow to the turbo. Fumes under the bonnet can enter the cabin and another leak source are the fuel injector to cylinder head seals, so have a look at these. Your car may also be due for the eolys fluid topping up and the dpf replacing/cleaning. If the turbo is on its way out, it is better to replace now rather than wait for it to possibly break up and wreck the engine if bits of metal get everywhere. This may be why the previous owner has sold the car. Turbo replacement is a diy job but do not just replace the turbo, the oil feed pipe and return pipes need replacing and an oil filter in the feed pipe needs removing and there may be some other bits. It is possible to replace the cartridge in the turbo and citrophile has done this on his C5 and C3, have a look at this topic http://www.citroen-owners-club.co.uk/citroen/topic/21140-possible-turbo-failure/ In the C5 Technical section there is a pinned topic on Common Problems to look at and in the C5 Problems and Fixes section there are some topics to read - Always Use Axle Stands, and a few on the brakes. The Haynes manual is worth getting.

None of the well known oil companies have refineries in this country any more, having closed them or sold them. So the fuel has to come from the same places as the supermarkets except they may use different additives when the fuel goes to the garages. The more expensive fuels may claim to have benefits such as keeping the engine cleaner and giving a slightly higher mpg. My nearest premium diesel would involve a 10 mile round trip so any fuel saving benefits are lost by the extra miles to get it, so I usually use Sainsburys when getting the shopping.