paul.h

The car may have a fuel filter at the fuel tank end of the fuel pipes which if blocked could affect performance but may not put on the engine management light. Similarly a blocked air filter or its ducting. A blocked exhaust could also restrict performance. The fuel pump is an electric one which will either work or not, so it should not be the fault. You should get the fault code read before doing anything else. What engine is it, what year is the car and how many miles has it done ? The engine management light coming on means a sensor that has an impact on exhaust emissions has detected a problem. The only way to find out which has detected the problem is by reading the fault code since you could replace every one of them before fixing the problem and if it is something such as engine wear/damage/timing belt fault it would not fix that. The sensors include: - crankshaft position sensor - if this is faulty the engine is likely to cut out or not start - possibly a camshaft position sensor depending on which engine is installed - exhaust catalyst inlet and outlet lambda sensors but only the inlet one would likely affect performance - knock (pinking) sensor - MAP sensor on the inlet manifold (you could remove this and see if it is blocked with oil) - possibly an air flow meter depending on which engine is installed, otherwise the air flow comes from the MAP sensor - coolant temperature sensor - if this is faulty the fueling would not be right so performance would suffer and if you have a temperature gauge it may not show normal levels - there will also be inputs from the fuel injectors, accelerator pedal, throttle body, the coil pack

You could try knocking them out with a hammer or using a puller to push them out but there may be a risk of damage to the caliper support bracket. You could also try applying heat. Cutting them off and then drilling out the bits may not be easy since the pins are likely to be hardened. When you come to fit the new ones a bit of copper grease in the holes and on the pins should help to stop them rusting in again.

If you do the timing belt note that the mileage/time limits in the Citroen maintenance and warranty book are for Citroen parts. If you get them from another source and the parts are not identical and the same manufacturer, then it is possible future maintenance frequencies will be different - something you could check when getting prices. Some cars I have owned needed the timing belts replaced at 4 years or 36k miles, the extended frequencies of 10 years or maybe around 100k miles on Citroens must be based on the materials/quality/testing of the belts they use. So if you save a few pounds on the parts compared to Citroen, you may lose this by having to replace them in a few years or possibly risk engine damage. When I replaced the timing belt on our C3 my thoughts were that the possible savings were not worth the risk - example prices are now £43 from Eurocarparts for a Dayco belt and tensioner, at the end of 2011 the Citroen parts were £63.

The BSI (built-in systems interface) is the glove box dash fuse box and controls lots of things which normally use relays and separate controllers. There is also an engine ecu and other ecus for other things.

Looking at a picture of the exhaust back box, it goes across the width of the car in the same location as most towbars. If Citroen can not provide a towbar then maybe a modified exhaust is a possibility.

Thanks for the tip, I will link to it in the Common Problems topic. A new diaphragm actuator which includes the plastic cup is only about £20 from a dealer and you can just remove the cup from the actuator rod and replace that without doing the rest. Note this only applies to the 2.2 hdi 136 bhp engine since the others do not have this actuator. This is in the C5 Common Problems pinned topic in the Technical section: 11. C5 2.2 hdi 136 hp only, swirl plate diaphragm actuator ball cup breaks. Vacuum leak/turbo fault codes (any engine). Located at the left end of the cylinder head. Symptoms may be loss of acceleration, engine management light, increased fuel economy. The plastic ball cup may be replaced on its own (10 mins) or the complete actuator replaced (several hours DIY), about £20 but the cup is not available separately. I read in Car Mechanics a case where the actuator had a vacuum leak which resulted in the engine management light and limp mode and fault codes for over boost and turbo regulation fault. The slow loss of vacuum reduced it also to the turbo wastegate so turbo boost level dropped, the ecu then increased the boost control duty cycle which then deactivated the swirl control increasing the vacuum boost and tripping the EML/limp mode. These fault codes have also been reported here and it turned out to be a split in the vacuum pipe to the egr valve actuator - so any cause of a vacuum leak should be looked for before touching the turbo.

I have found a wiring diagram in the French RTA manual for the C4 1.6 petrol and this shows the fuel pump/gauge having 2 wires. One comes from the engine fusebox fuse 5 and is numbered 1201L and the other numbered MC123 goes to a wire MCBSI from the BSI which becomes MC46P and goes to an earth point MC46 (E4 in the Haynes manual)- this may be near the BSI so possibly at the door side of the passenger footwell or a bit higher. So if the diagram is correct and you only have 2 wires, 1 will supply 12 volts and the other will be an earth. How this lets the level gauge work I do not know since I would expect the gauge to have its own wire back to the BSI so it can calculate the level from it. Wiring numbers often change so may not be correct.

There are a few different part numbers for the various gearboxes for both size engines. The 1.4 and 1.6 petrol ones also have different crown wheel / pinion sizes and differential sizes and different speedometer drive gears. None of the drive shafts have the same part numbers and there are many different ones for each engine size. The clutches are also different. You are best to look at the Citroen parts diagrams which can be done as a free service on the service.citroen site if you register as another professional and a member of the Citroen Owners Club http://service.citroen.com/pages/index.jsp Use your VIN (VIS) to find your car and any donor car you are thinking of for the parts. If there is a Haynes manual for your car it will be worth getting since they cover gearbox removal although not the overhaul of one. I have not removed a Xsara gearbox but on front wheel drive cars I have done it has been removed from under the wheel arch - lowered with a crane and then dragged out on cardboard.

Welcome to the forum.

The fault code will be stored on the car so can still be read, even though the light is not on. Another possibility could be a faulty spark plug. If these have not been changed for a few years it is worth doing. I had this on a car years ago. I would not change any other parts though without reading the fault codes since it could be a waste of money. If you do not have access to a code reader a garage could charge more than buying one - this one from Gendan seems good value since it also gives some engine live data https://www.gendan.co.uk/product_FXNT200.html

Welcome to the forum. You can read/save/print the handbook from the service.citroen site http://service.citroen.com/ddb/ but it does not cover as early as your car but I would think most of it is relevant. Sometimes the handbooks are left in the drawers under the front seats so worth a look. Also if you register on this site http://service.citroen.com/pages/index.jsp as another professional and a member of the Citroen Owners Club you can see the parts diagrams. Use your VIN (VIS) to find your car in the top left box and if you look at the left column under Characteristics it may say which radio was originally installed on your car. Citroen radios are coded to the car on which they were originally installed as a theft precaution. So if you got a used one it would not work in your car. However, there may be places that can decode them for a fee and possibly recode it to your car. If you bought a new one from Citroen it would be coded to your car if you provide your VIN.

welcome to the forum. It could be a fuel injector has failed, we had something similar on a petrol C3, but it could be something else that causes a misfire. With the engine management light on, if you use a code reader it should tell you what is wrong without replacing parts in the hope you get the right one without wasting too much money.

Welcome to the forum. It could be a maxi fuse that has blown. These are located in the engine fuse box below the top layer - I am not sure how to lift off the top layer without seeing the car but once off you should see 8 maxi fuses ranging from 20 to 80 amps with fuses 4 and 5 listed as being for the bsi. We had something similar to this on a Xsara Picasso where suddenly the car went dead electrically and that was a maxi fuse that had failed. It was replaced and never happened again so may have been a weak fuse. If you do a search on C3 maxi fuses you will find some picures of the fuse box showing the maxi fuses.

The only Haynes manual I have that shows the level sensor is for a C3. It shows the wires from the level sensor/fuel pump go to the bsi which will then generate the signal for the level gauge. Usually the wiring goes from the back along the left hand sill to the bsi/dash fuse box - so you could try and follow the wiring by its colour or number code (magnifying glass will help to see this). If looking for a short to earth you could disconnect the plug at the fuel tank end, put a meter lead to an earth point and the other to the different pins in the connector - if there is a short to earth then you should get a very low resistance.

There is a bsi reset procedure here which I believe you are thinking of doing by removing the shunt fuse: http://www.citroen-owners-club.co.uk/citroen/topic/15093-bsi-reset/

There is a bsi reset procedure here: http://www.citroen-owners-club.co.uk/citroen/topic/15093-bsi-reset/

If you do need to replace the switch unit, as an example using part no. 6242RH (this must be checked using your VIN), from citroencarparts.net it is £99.98. The wiper motors though are £206 each. The left one is 6405LE and the right one 6405LA.

I have never tried it and would be reluctant to do so. The original poster is no longer a member of the forum so we can not check on the validity of the method quoted or even the background of the poster. If you search the internet there are many methods quoted to reset the bsi and we have one pinned in the C5 Technical section. Usually if disconnecting the battery you remove the ignition key and wait for the bsi to shut down to ensure there are no odd electrical problems caused. The procedure I follow is this: 20. Odd electrical problems caused by wrong battery disconnection procedure. If you need to disconnect the battery and not do a BSI reset procedure, I have found the following has not given me any problems on a 2004 and 2007 C5 and a 2003 C3: - 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 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 (and radio on the C3).

Your guess is probably as good as any other. Maybe by disconnecting the power supply it has reset something. You could test the 30 amp fuse to see if it is any good. This is included in the C3 Technical section Common Problems pinned post: 27. Comms 2000 unit reset method to fix wipers/washers not working. This topic by vectratot includes a method to reset the comms 2000 unit after the wipers and washers stopped working http://www.citroen-o...ing/#entry82270 The following is from the Common Problems pinned posts in the C3, C4 and C5 Technical sections: 20. Odd electrical problems caused by wrong battery disconnection procedure. If you need to disconnect the battery and not do a BSI reset procedure, I have found the following has not given me any problems on a 2004 and 2007 C5 and a 2003 C3: - 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 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 (and radio on the C3).

Welcome to the forum. I would go to your nearest Citroen dealer since Citroen have been replacing broken coil springs, front and rear without cost to the owners. Both sides are done so the springs are the same. On our 2003 C3 a front one broke at about 5 years old and both fronts were replaced. Last month a rear one broke on our current 2010 C3 and again both rear ones were replaced without cost to ourselves. I think Citroen replace them up to about 80k miles so you have nothing to lose by asking. Broken springs seem to be a common failure on many cars these days. Springs are probably being made thinner to cut weight but there are now a lot of speed bumps and potholes on roads which may not be helping.

Most Citroen parts are common to Peugeots so maybe it has been replaced with one from a Peugeot or had an update at a Peugeot dealer/specialist or by an owner using a Peugeot download. Our C5 does come up with a Citroen logo so in your case this is not normal but unless it is not working it may not be worth taking it to a Citroen dealer to be sorted. I have moved your topics in to a subforum since ones outside of one do not show after a few days and then become difficult to find.

Welcome to the forum. Have you tried a Citroen dealer, on their accessories site they list a swan neck towbar but it is not specific on which models it fits. The last 2 towbars I bought from these people so could be worth a call http://www.towbarsdirect.co.uk/towbars.htm

A first guess would be the wiper motor needs replacing. However, each wiper blade has its own motor and the chance of both failing together seems remote. So possibly there is a fault with the switching block (comms 2000 unit) under the steering wheel, or maybe a bad electrical connection or earth point. If you have auto wipers you could also clean the windscreen in front of the sensor at the top middle. You could consider doing a battery disconnection/reconnection since this sometimes clears odd electrical faults. Also look in the handbook in case a fuse is listed that could have blown. If it does need the switching block replacing it is removed by removing the steering column plastic covers (2 bolts underneath and the headlight height switch electrical connector), unplugging its electrical connectors and then removing 2 bolts. It should not need any diagnostics when a new one is installed. To get the right one you will need your VIN since there are a few different part numbers.

Welcome to the forum. With the engine management light coming on there will be a fault code which will say what the fault is and there will be freeze frame data showing the engine sensor measurements when the fault occurred - so this should be enough for the dealer to diagnose the fault and fix it. The lack of power is probably the engine has been put in limp mode so it will still run but without causing the exhaust emissions to be excessive. Since the problem happened after the service it is possibly something done then such as the connector on the air flow meter not being put back. Please let us know the outcome.

Welcome to the forum. I have deleted your similar topic in the C4 section so all replies are in one place, as well as edited the title. I would visit a Citroen dealer and let them do a diagnostic check on it. Auto gear box repairs can be expensive so it is worth finding out what is wrong before committing to the car. Whatever the fault is, if the selling garage does not know and therefore how to fix it, then you could end up with the bill if it does not happen again for 4 months. I would also check the small print of the warranty, such as what is covered and any cost limits. You can read/save/print copies of the car handbook from the service.citroen site. Select your language and then handbook pack and then your car http://service.citroen.com/ddb/ ---------------------------------------------------------------------------------- Under the auto gearbox section the handbook has: In Drive position: The gearbox always selects the gear best adapted to the following parameters: - style of driving, - route profile, - vehicle load. In this way the gearbox operates in autoadaptive mode, without the need for your intervention. For certain manoeuvres (for example overtaking), it is possible to obtain maximum acceleration by pressing hard down on the accelerator pedal, which may trigger automatic changedown to a lower gear. Note During braking, the gearbox may kick down automatically in order to offer an effective engine brake. If you rapidly lift your foot off the accelerator, the gearbox will guard your safety by not changing up again. - Flashing of the warning lamp for the position requested signals that this position has not yet been permitted. - When the warning lamp is fixed,the position is confirmed. - The display of a dash in the rev counter indicates a fault. Urgently consult a CITROËN Dealer If there is a fault : - A sharp hesitation may be felt when you select R for reverse gear. - The gearbox is stuck in a gear. - Do not exceed 100 km/h (approx. 60 mph). Urgently consult a CITROËN Dealer ---------------------------------------------------------------------- Which engine does the car have - if a 1.6 hdi diesel then make sure it has a full Citroen service history of oil/filter changes using the correct oil since these are prone to early turbo failure. There are also a few Common Problems listed on the C4 Technical section in a pinned topic.