Repair VW Sharan

. Diesel engines: 1,9 l TDI.
+ 1. Introduction
+ 2. Engine VR6
+ 3. The two-litre engine (ADY)
+ 4. System of greasing of the engine
+ 5. Cooling system
+ 6. System of injection of fuel of engine VR6
- 7. System Simos of injection of fuel of the 2,0-litre engine
   7.1. The general description and system Simos work
   7.2. An idling mode
+ 8. Ignition system
+ 9. Coupling
+ 10. A mechanical 5-step transmission
+ 11. Shaft of a drive of wheels
+ 12. The steering hydraulic booster
+ 13. A forward suspension bracket
+ 14. A back suspension bracket
+ 15. Brake system
+ 16. An electric equipment
+ 17. The diesel engine
+ 18. System of greasing of the diesel engine
+ 19. System of cooling of the diesel engine
+ 20. The power supply system of the diesel engine and turbocharger
+ Maintenance service card
+ Specifications and characteristics
+ Electroschemes


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Folksvagen Sharan/Sharan repair>> System Simos of injection of fuel of the 2,0-litre engine>> The general description and system Simos work
On the 2,0-litre engine the new system of the multidot (distributed) injection of fuel under name Simos, formed from the name of its firm of the manufacturer — «Siemens» is established. This modern multidot system of injection has all same details, as the described electronic system of injection of engine VR6 except that it has only one gauge of a detonation and only 4 atomizers.

Fig. 207. An arrangement of elements of system of injection Simos in a motor compartment of the 2,0-litre engine: 1 — the tank with the activated coal; 2 — the electromagnetic valve; 3 — an atomizer; 4 — a regulator of pressure of giving of fuel; 5 — four-contact штекерная колодка; 6 — the high voltage transformer; 7 — the system valve рециркуляции ОГ; 8 — ЭБУ injection and ignition Simos system; 9 — three-contact штекерная колодка; 10 — central штекерная колодка; 11 — three-contact штекерная колодка; 12 — the gauge of speed of movement; 13 — the distributor of ignition with the Hall gauge; 14 — the gauge of frequency of rotation of a cranked shaft of the engine; 15 — the gauge of temperature of a cooling liquid; 16 — the detonation gauge; 17 — connection with "weight"; 18 — the case throttle заслонки; 19 — the gauge of the mass expense of air; 20 — the gauge of temperature of let in air; 21 — the air filter





Fuel under the pressure, which size is supported by a regulator of pressure 4 (fig. 207), continuously moves to atomizers 3 which are established directly ahead of inlet valves. ЭБУ 8 counts duration of an impulse of injection, and consequently, and structure of a gas mixture depending on following parametres:
- Position throttle заслонки;
- Degree разряжения or pressure size in an inlet collector;
- Frequency of rotation of a cranked shaft of the engine.
The electric fuel pump takes away fuel from a tank and submits it under pressure to a fuel distributive highway. The pressure regulator supervises quantity of fuel returned in a tank and supports constant pressure of giving of fuel to atomizers.
On the basis of information ЭБУ received from gauges develops impulses of time of injection of fuel. At malfunction of any gauge EBU passes to an operating mode by "default" with the lowered efficiency on the basis of the fixed parametres put in the block of memory ЭБУ.
The arrangement of elements of system of injection in a motor compartment of 2,0-litre engine Simos is shown on fig. 207.
The electronic system of injection consists of following elements:
- The tank with the activated coal 1 is placed in the right wheel arch;
- The electromagnetic valve 2 opens and closes connection between the tank with the activated coal and the engine;
- The gauge of the mass expense of air 19 is located between the air filter of air and an inlet hose;

Fig. 208. An arrangement of elements of system of injection Simos on the 2,0-litre engine: 1 — the air filter; 2 — a tip of a wire of the gauge of temperature of let in air; 3 — a tip of a wire of system of clearing by means of the activated coal; 4 — to картеру; 5 — a fuel hose, a white mark; 6 — the top part of an inlet collector; 7 — an O-shaped sealing ring; 8 — a bolt, 16 Н·м; 9 — a lining, replace with the new; 10 — a bolt, 10 Н·м; 11 — a bolt, 25 Н·м; 12 — a tip of a wire of an atomizer; 13 — the bottom part of an inlet collector; 14 — to connection on a head of the block of cylinders; 15 — to a broad tank; 16 — ЭБУ; 17 — a collar; 18 — holder ЭБУ; 19 — multicontact штекерная колодка; 20 — a spring lock collar; 21 — the gauge of temperature of a cooling liquid; 22 — a tip of a wire for (21); 23 — a tip of a wire for (24); 24 — the gauge of frequency of rotation of a cranked shaft of the engine; 25 — распорное a ring; 26 — штекерная колодка a ljambda-probe and ljambda-probe heating; 27 — a ljambda-probe; 28 — an air inlet hose; 29 — штекерная колодка cases throttle заслонки; 30 — a hose рециркуляции, a dark blue mark; 31 — a tip of a wire of the gauge of the mass expense of air





- Four-contact штекерная колодка 5 it is connected with a ljambda-probe 27 (fig. 208) and ljambda-probe heating;
- The valve of 7 systems рециркуляции ОГ today even more often name valve EGR;
ЭБУ 8 systems of injection Simos and the system of ignition connected with it it is located behind the panel of devices;
- Three-contact штекерная колодка 9 gauges of a detonation of brown colour;
- штекерная колодка 10 gauges of frequency of rotation of a cranked shaft of the engine of black colour;
- In the distributor of ignition 13 the Hall gauge is established;
- The gauge of 15 temperatures of a cooling liquid of black colour, is also the gauge of the remote thermometer located on the panel of devices;
- Functions of the gauge of a detonation 16 and coils of ignition 6 are described in section 8;
- The gauge of 12 speeds of movement informs ЭБУ on current speed of the car;

Fig. 209. The bottom part of an inlet collector and the air filter with fastening: 1 — a distributive fuel highway; 2 — a bolt, 10 Н·м; 3 — a safety collar; 4 — O-shaped a sealing ring; 5 — a regulator of pressure of giving of fuel; 6 — the top part of the air filter; 7 — the gauge of temperature of let in air; 8 — a rubber nozzle (pay attention to correctness of installation); 9 — a filtering element of the air filter; 10 — the bottom part of the air filter; 11 — the electromagnetic valve, the tank with the activated coal; 12 — the rubber plug; 13 — a rubber nozzle; 14 — a rubber lining; 15 — the gauge of the mass expense of air; 16 — a bolt, 10 Н·м; 17 — a sealing ring; 18 — an atomizer; 19 — the bottom part of an inlet collector





- The gauge 7 (209) informs fig. ЭБУ on temperature of let in air;
- The gauge 14 (fig. 207 see) informs ЭБУ on concrete frequency of rotation of a cranked shaft of the engine.
In ЭБУ systems Simos the block of memory or a memory which registers all refusals (failures) which have happened while in service, having three operating modes enters:
- Reading of the refusals (malfunctions) written down in memory which have happened at work of the engine;
- Mode of check of knots and car systems;
- Mode of diagnostics of malfunctions of systems of injection and ignition at the stopped engine.
The inquiry of operating modes is carried out through колодку diagnostics.
Deleting of the information on malfunctions from a memory is possible only at least after unitary reading of codes (a mode № 1) or after elimination of the found out malfunctions (modes №2 and 3).