Audi 100/A6

1990-1997 of release

Repair and car operation



Audi 100/A6
+ 1. The maintenance instruction
+ 2. Maintenance service
+ 3. Engines
+ 3.2. Diesel engines
+ 3.3. Removal and a partition of engines
+ 4. Cooling system
+ 5. Heating and ventilation
+ 6. Fuel system
+ 7. An exhaust system
+ 8. Systems of start, ignition
+ 9. Transmission
+ 10. Brake system
+ 11. Suspension brackets, a steering
+ 12. A body
+ 13. An electric equipment
- 14. A good advice
   14.1.1. Changed numbers
   14.1.2. Purchase of the old car or a mysterious set of figures and letters
   14.2. Durability of the car
   14.3. About parallelism of bridges of the car and the trailer
   14.4. Preparation of the car for winter
   14.5. It is not got – a good advice
   14.6. From change of places "composed" varies nothing?
   14.7. Visit to car-care centre
   - 14.8. The engine
      14.8.2. The analysis дымности an exhaust
      14.8.3. "Eats" much, but silently goes
      14.8.4. A gear belt for a mechanism drive timing
      14.8.5. That it is necessary to know, changing oil
      14.8.6. Pistons
      14.8.7. Valves
      + 14.8.8. Bearings
      + 14.8.9. To owners of the car with the diesel engine
      14.8.10. To owners of the car with инжекторным the engine
   + 14.9. The conditioner
   14.10. turbocharger
   + 14.11. Three in one – or how to save the catalyst
   + 14.12. The accumulator
   14.13. The generator
   14.14. slip
   14.15. "Automatic machine"
   + 14.16. Brake system
   + 14.17. Wheels and tyres



14.8.2. The analysis дымности an exhaust
THE GENERAL DATA

Diagnostic inspection would be incomplete without the analysis дымности a car exhaust. It is already enough heated-up, so it is a high time to approach to its "loin" and to glance to a horse "under a tail".

The exhaust of the serviceable engine is almost colourless. The exhaust pipe leaves hardly distinguishable easy smoke of the white colour which intensity amplifies by sharp pressing a gas pedal.

In frosty weather the serviceable car reserves dense enough clubs of white steam (not to confuse to a smoke!), testifying to full combustion of fuel.

Long to inhale exhaust gases – is more expensive. We suppress the engine. But it yet the ending. It is necessary to survey an internal surface of a stopper маслозаливной mouths. Presence on it of traces made foam эмульсии lurid colour – very disturbing symptom speaking about infiltration in oil of antifreeze. Having uncovered a broad tank or a radiator, survey antifreeze. Attention: to avoid a trauma, to do it it is necessary on the cooled down engine! An oil film on an antifreeze surface, the same as the made foam engine oil – harbingers of urgent repair of the engine.

Here, perhaps, and all. We completely surveyed "patient", having walked literally from a tip of a nose to a tail. Also used at survey not expensive, inaccessible to the majority of motorists the equipment, and that is given us by nature: sight, hearing, sense of smell and, certainly, mysterious "grey substance".

The analysis дымности an exhaust

Oily ring corbel in width of 6-8 mm on an external surface of an exhaust pipe of the car ("mourning ободок") – a consequence of the raised expense of oil. Engine major repairs are inevitable.

Smoke of black colour

Sign of incomplete combustion of fuel. The power supply system prepares very rich mix and requires adjustment.

Smoke of a grey (violet) shade

Sign of the raised expense of oil. The engine demands replacement маслосъемных caps or repair of tsilindro-piston group.

Dense white smoke

Sign of a burn-out of a lining of a head of the block of cylinders of the engine. The cooling liquid gets to the combustion chamber.

Smoke with a smell of exhaust gases from the removed branch pipe of system of ventilation картера (сапуна) the engine

Sign of break of the fulfilled gases in oil картер because of the increased backlashes in tsilindro-piston group.

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