Citroen Xantia

Since 1993 of release

Repair and car operation

Citroen Xantia
+ Introduction
+ The operation manual
- Routine maintenance
   + Weekly checks
   - Car routine maintenance - petrol models
      Regular service
      Replacement of impellent oil and the oil filter
      Check of a condition of hoses, and revealing of sources of leaks
      Check of adjustment of coupling
      Check of level ATF
      Suspension bracket and steering drive
      Check of a condition of protective covers of power shafts
      Reading of memory of the block of self-diagnostics
      Replacement of the dust removal filter (model with К/В)
      Check of a condition of a coolant of a central air of air
      Replacement of spark plugs
      Check of a condition of system of ignition
      Check and adjustment of turns and quality of a mix of idling
      Check of serviceability of functioning of systems of decrease in toxicity of the fulfilled gases
      Check of a condition and replacement of a belt of a drive of auxiliary units
      Greasing of the mechanism of a drive of deenergizing of coupling
      Condition check колодок brake mechanisms of forward and back wheels
      Check of serviceability of functioning and adjustment of a lay brake
      Trial runs
      Replacement трансмиссионной liquids АТ
      Greasing of locks and loops
      Replacement of a filtering element of an air cleaner
      Level check трансмиссионного oils (models with РКПП)
      Replacement of the fuel filter
      Replacement of hydraulic liquid LHM and the returnable filter
      Check of a condition of brake supports, disks and hydraulic hoses
      Replacement of a belt of drive ГРМ
      Replacement of a cooling liquid
   + Car routine maintenance - diesel models
+ Engine repair
+ Systems of cooling, heating
+ The power supply system and release
+ Engine electric equipment
+ Coupling
+ Transmission
+ Power shafts
+ Uniform hydraulic system
+ Brake system
+ Running gear and steering
+ Body and salon furnish
+ Onboard electric equipment
+ Electric equipment schemes

Replacement of spark plugs


Efficiency of return of the power unit appreciably depends on serviceability of functioning of spark plugs. It is important, that candles on the standard size corresponded to the engine established on the car (Specifications in the beginning of the given Chapter or the Head the Operation manual see). Under condition of performance of the mentioned requirements and serviceability of a condition of the engine of a spark plug seldom require attention, besides necessity of performance of procedures of routine maintenance of the car. Necessity in зачистке candles arises also extremely seldom, procedure should be made only with application of the special adaptation, the risk of damage of working parts of electrodes otherwise takes place.


1. In the absence of factory marks on ВВ wires of spark plugs, mark wires independently by means of an adhesive tape according to numbering of cylinders (it is considered the first the cylinder nearest to transmission).

2. Try not to damage isolation of wires. Accurately remove tips of wires from shafts of candles (in order to avoid damage of the contact plug pull only for a tip, - at all for a wire).

3. Before to start a reversing of spark plugs it is necessary to remove from their niches small dust and a dirt in order to avoid their hit in cylinders. Take advantage of a small brush, or blow niches the compressed air (for this purpose the usual bicycle pump perfectly will approach).

4. By means of the special key equipped with the elastic loose leaf, turn out spark plugs. In order to avoid damage of a ceramic insulator try to hold at a candle reversing a head of a key in parallel its axes. Having turned out all candles, make check of their condition (see further).

5. The external condition of candles can give a lot of helpful information on degree of deterioration of the engine. If the working end of a candle shines and is free from touches and adjournment, hence, in combustion chambers too poor air-fuel mix moves, or the candle has excessively high калильное number (heat removal from electrodes in a hot candle occurs less intensively, than in cold).
6. If the working end of a candle and an internal central insulator are covered by a thick layer сажистых adjournment, hence, the mix is too enriched. Black окрас a working part of a candle in a combination to oil traces testifies to internal deterioration of the engine, or also excessive enrichment of a mix.
7. Golden or serovato-brown colouring of a working part of a candle is the certificate of correct configuration of an air-fuel mix and good inwardness of the engine.
8. One of the major parametres defining efficiency искрообразования of a candle is the size of an interelectrode backlash. Rating values of candle backlashes are resulted in Specifications.

9. For installation of an interelectrode backlash measure it by means of special probeа, then extremely accurately turn in a lateral electrode in a corresponding direction. Do not try to correct at all position of the central electrode as it can lead to failure of an internal porcelain insulator that is fraught with the most serious consequences. Щуп лезвийного type of a nominal thickness should slip hardly in a backlash between electrodes.

10. Special tools for updating of backlashes can be got practically in any shop of automobile accessories.

11. Before installation of candles make sure of reliability of fixing of carving nozzles, and also in cleanliness and serviceability of a condition of coils of a carving. Frequently наживить a candle in a carving aperture of a niche without a warp it appears difficultly enough. In order to avoid damage of a carving to a head of cylinders at such warp put on a shaft of a candle a piece of a fuel hose of suitable diameter. Grasp the end of a hose fingers and begin наживлять a candle. As soon as the warp will cause appreciable resistance to rotation, the hose will start to be turned that completely excludes risk of damage of a carving.

12. Having finished наживление candles, remove from it a hose piece. The further tightening is made with the help динамометрического a key. Operating in the same manner, establish on the engine all spark plugs.

13. In summary, connect to candles ВВ of a wire and establish into place all components acting in film for the purpose of providing of access.

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