Contents: Fuel ⬇ Power supply system type ⬇ Technical characteristics of the…⬇ Fuel injection pump ⬇ Tightening force of threaded…⬇
Fuel
Petrol models - Unleaded petrol no worse than AI-95
Diesel models - Diesel fuel with a cetane number of at least 49
Operation of diesel models in winter conditions
When using summer diesel fuel at temperatures below 0°C, engine misfires may occur due to increased fuel viscosity resulting from paraffin formation.
At sub-zero temperatures, special "winter" diesel fuel should be used. Depending on the brand, winter fuel ensures uninterrupted operation at temperatures from -15°C to -22°C.
The use of gasoline and similar thinners as additives to diesel fuel is not permitted!
If the fuel quality is low, the fuel filter may need to be replaced more often than specified in the maintenance schedule.
Specific fuel consumption/CO emissions²
See Specifications for Chapter Controls and operating techniques.
Power supply system type
Petrol models
| Engines X10XE, X12XE | Motronic 1.5.5 |
| Engines X12SZ, C14NZ, X14SZ | Central system mulTec injection |
| Engine C14SE | Distributed system mulTec-M injection |
| X14XE engines, X16XE, C16XE | Sequential system mulTec-S injection |
Diesel models
Models equipped with the X15DT engine come standard with a turbocharger system.
Diesel engines - Pre-chamber injection system VE 4 with distributor-type fuel injection pump VP29 and electronic control.
Maximum allowable rotation speed, rpm
See Specifications for Chapter Engines.
Technical characteristics of the power supply system
Petrol models
|
Set fuel pressure values |
|
| Engines 1.2 and 1.4 l with 45 and 60 hp. accordingly, atm |
0.76
|
| Engines 1.4 and 1.6 l with 82 hp and dOHC engines 1.0 and 1.2 l, atm |
3.0 ±0.2
|
| Fuel pump type |
Electric, submersible,
fits inside the fuel tank
|
|
Adjustable constant pressure fuel pump (approximately), atm |
|
| Central injection systems |
0.8
|
| Distributed injection systems* |
3.0 ±0.2
|
| Idle speed |
Not regulated,
controlled by the control module (ECM)
|
| CO content at revolutions idle |
Not regulated, controlled
control module (ECM)
|
* Fuel pressure regulator vacuum hose is disconnected and clogged.
Diesel models
Fuel injection pump
Direction of rotation - Clockwise
|
Injection timing (static), mm of injection pump plunger stroke to TDC
|
|
|
Engine 15 D
|
0.85÷0.95
|
|
Engine 15 TD
|
0.63÷0.73
|
|
Engine 17 D
|
0.60÷0.70
|
Switching points of the temperature-sensitive element:
- "ON" at temperature from +52 to +58°C;
- "OFF" at a temperature of at least +48°C.
Tightening force of threaded connections, Nm
| Intake pipe to exhaust manifold |
25
|
| Clamp to the inlet pipe |
18
|
| Catalytic converter clamp to muffler |
18
|
| Intake pipe to turbocharger nozzle |
65
|
Petrol models
| Throttle body mounting nuts |
22
|
| Throttle body upper mounting bolts |
6
|
| Pre-chamber fastener |
4
|
Diesel models
| Intake manifold fastener |
30
|
| Upper timing belt cover mounting bolts |
10
|
| Fuel return line fastening nut |
30
|
| Fuel line fastening union nuts to injectors and fuel injection pumps |
25
|
| Intake manifold mounting bolts |
25
|
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