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Trouble code P0491 means:Secondary Air Injection System Insufficient Flow (Bank 1)

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The bonnet release catch is located on the outside wall in the passenger footwell, just underneath the glove box. Pull this lever out towards the seat. Then you lift the bonnet slightly and locate the main release lever in the gap between the bonnet and the front trim.

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No braking lights is usually caused by the failure of the switch behind the brake pedal. It's a fairly easy job to replace, but check it isn't a simple fuse failure first

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You can set yourself a maximum speed limit... if you exceed this you will be notified. You can activate/deactivate this function using the button on end of wiper stick. You set the required speed by driving at that speed and pressing the button... Bit dodgy when your supposed to be concentrating on the road!! DONT BOTHER!! AFC

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Every 70000 miles or 7 years, whichever occurs first - Citreon recommendation

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Under the passenger's seat for a right-hand drive car, or under the driver's seat for a left-hand drive car.

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Under and forward of offside wheel arch, requires removal of plastic wheel arch covers to gain access.

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You can set yourself a maximum speed limit. If you exceed this you will be notified. You can activate/deactivate this function using the button on end of wiper stick. You set the required speed by driving at that speed and pressing the button

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If your car is fitted with this feature ('Exclusive' models), then you rotate the mirror adjustment dial to the down position. Turning the dial back up will unfold them.

Do not attempt this if you do not have the Exclusive version, or if your mirror adjustment panel does not have a white triangle in the 'down' position. Forcing the dial to turn down can break the connections inside, and you will have to replace the adjuster.

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You possibly have a hole in your exchanger, when you are sitting still the fumes consentrate when you are moving the free flow of the air carries it away. http://www.autozone.com/servlet/UiBroker?UseCase=S001&UserAction=viewSimpleDiagInfo&Parameters=info

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There are 2 fuse boxes in C3. One in the glove box and the other under the bonnet next to the battery. You will need to remove the battery cover to access the fuse under the bonnet. The fuses are numbered so you need to know which fuse you want to change as the fuse may have different ratings.

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Go to www .locking wheel nuts removed.com and they will remove all four in less than 10 minutes.Use the key that came with the locking wheel nuts. If you have lost the key there is one option that doesn't involve taking it to a shop. It's called a lockin wheel nut remover. It has pins inside a socket like device that will fit onto any shape lock. Costs about 20 bucks.

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Hi, if it is a keypad one, lift the keypad from the centre console, put in the correct code and start the car, when the car is running remove the plug from the back of the keypad. You will then be able to start without inputing any code.
Best wishes, Jim.

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Locate the bulb holder under the bonnet, then turn the bulb by about a quarter and pull out. Replace with the same bulb (W5W 12V)

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75'000 miles according to the book

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Had the same prob for a couple of weeks. in the end i just waggled the wire loom under the front passenger seat and also tilted the seat backwards and forwards a couple of times. I think the prob. maybe in the side airbag.

Good luck!

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on top right side of dashboard there are two buttons one looks like a book the other arrows, they change date/time on Picasso

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The alternator needs attention or replace

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If this occurs under heavy braking (i.e. ABS has kicked in), then the hazard lights will start flashing. They will turn themselves off after a few seconds of normal driving.

If it occurs whilst generally driving along, it could be a bad connection in the hazard light switch, or something more technical inside the car itself.

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Download it from c4owners.org.

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The battery is located under the passenger seat in the Picasso. Caution should always be used when removing the battery as apparently it can corrupt the cars computer system if disconnected incorrectly. Everything should be switched off and all doors closed for at least 3 minutes before disconnecting, to allow the computer to go to sleep. If this is not followed then the software can be corrupted. Do not operate any equipment for the 3 minutes before disconnecting. (Check out the Citroen 3 minute rule)

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Another person wrote: "I have never heard this one before. I think it is very unlikely as lead is a very soft metal and would not be able to withstand the constant turning of the key before it wore away and the key would be totally useless. This is so unlikely it is not even on www.snopes.com as an urban myth."

However, toxic levels of lead in house and car keys is common. Please see the following fact sheet for families and DO NOT let your children chew on or play with keys!

http://www.ucsfchildcarehealth.org/pdfs/factsheets/leadinkeysen011804.pdf

Lead may also be present in many common household objects from miniblinds to costume jewelry to powercords. It's dumb for countries to allow lead to be used in these items, but of course we get even dumber the more lead we use.

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150,000miles. Se the maintenance guide