6. Power supply system and release
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Separate characteristics are provided also in the text of the Head and in case of obligation of their performance are highlighted in bold type. |
Fuel grades
Petrol models
Unleaded gasoline is not worse than AI95/A85. Short-term use of unleaded gasoline is allowed not worse AI91/A82.5 (developed by the engine power a little decreases, fuel consumption grows).|
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Use of additives to fuel is fraught premature to wear and damages of internal components of the engine! |
Diesel models
Summer and winter diesel fuel
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Do not apply diesel fuels ship, boiler, etc.! |
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When using diesel fuel with raised (more than 0.5%) the content of sulfur you make replacement of motive oil through each 7500 km of a run from above. |
Winter fuel provides normal operability of the engine at temperatures up to -20 °C.
Thanks to preliminary heating of fuel at the included system of heating of salon trouble-free functioning of the engine is guaranteed at temperatures of external air up to -25 °C.
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Do not add gasoline to diesel fuel! |
In case of use of summer diesel fuel, and also at temperatures of external air below -15 °C it is necessary to add certain, depending on temperature of external air quantity of means for improvement of fluidity or kerosene to fuel.
Composition of mix
| Temperature of external air of °C |
- 15 to –23
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- 23 to-30
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| Summer diesel fuel |
80%
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50%
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| Kerosene |
20%
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50%
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| Temperature of external air of °C |
- 25 to –30
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- 30 to-35
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| Winter diesel fuel |
80%
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50%
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| Kerosene |
20%
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50%
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Means for improvement of fluidity can be used also in combination with kerosene.
The certificate of the allowed means for improvement of fluidity can be received on any HUNDRED Mercedes-Benzs.
The share of content of additive taking into account temperature of external air has to be minimum.
The kerosene share in mix has to make no more than 50%.
Additive has to be added to fuel during gas station before there was its solidification to release of paraffin. Faults owing to release of paraffin can be rectified only by heating of all power supply system.
You carry out mixing of diesel fuel with kerosene only in the fuel tank, - at first in a tank kerosene is filled in, then diesel fuel is added. In conclusion it is necessary to allow to the engine to work for distribution of mix on all path of a power supply system for some time.
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Additives of kerosene lead to decrease in a point of ignition of diesel fuel owing to what fire danger of mix increases! Follow the corresponding safety regulations! |
Volume of the fuel tank, l
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Models without ski cover | |
| Full capacity near |
88
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| Including fuel reserve near |
11
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Models with a ski cover | |
| Full capacity near |
78
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| Including fuel reserve near |
10
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System of injection of the petrol engine
| System type | Electronic microprocessor system of the distributed injection. The inlet pipeline with changeable geometry. |
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S280 S320 |
Bosch HFM |
| S420, S500, S600 | Bosch LH or ME |
System of injection of the diesel engine
| Type |
TNVD Bosch, PES 6M RS 181, No. 0 400 076 956 with the drive doubled by a chain from a crankshaft asterisk
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| Injection moment |
Is established by means of the control probe, the engine has to be in VMT
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| Regulator |
No. 0 400 076 956
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| Bosch nozzles, |
No. 0 432 217 266
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Pressure in system, bar | |
| At the exit of the fuel pump (S500, S600) |
5.3-5.5
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| With the disconnected vacuum |
3.7-4.2
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| With the connected vacuum |
3.2-3.6
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On open nozzles (TDI) | |
| New/former in the use |
115-125/100
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Resistance of the sensor of temperature of cooling liquid, Ohm (at a temperature) | |
| S280, S320 |
309-341 (80 °)
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| S420, S500, S600 |
325 (80 °)
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| S300 TDI |
Data are not provided
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Resistance of the turns/VMT sensor, Ohm | |
| S280, S320 |
680-1200
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| Resistance of injectors, Ohm |
14-16
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Duration of opening of injectors, ms, at rpm | |
| S280, S320 |
2.5-3.8, at 700
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Adjusting data
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Check of installation of the moment of the beginning of injection of TNVD |
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Tags of position of the crankshaft at adjustment of TNVD 24 ° (EGR 19 °) before VMT |
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Adjustment of turns of idling (TDI model) |
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Idling turns (are supported automatically) | |
| S280, S320 |
650-800
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| S420, S500, S600 |
675±50
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| S300 TDI |
560-660
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| Restriction of turns without loading | |
| S300 TDI |
4600-4900
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| Contents WITH on single turns, at the oil which is warmed up to 60 °C |
No more than 0.5%
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| The maintenance of NANOSECOND on single turns, ppm (particles) |
100
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| The maintenance of CO2 on single turns |
14.5-16%
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| The maintenance of O2 on single turns |
0.1-0.5%
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| Contents WITH on 2200-2800 rpm |
0.3%
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| Value a lambda on 2200-2800 rpm |
0.97-1.03
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| Adjusting provision of TNVD (see an illustration) |
24 ° before VMT
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Efforts of tightening of threaded connections, Nanometer
The moments of an inhaling of fixture are given also in the text of the Head and on some illyustratsiyakh*.* The moments of an inhaling highlighted in the text in bold type are subject to exact observance; the efforts which are not highlighted in bold type are given only approximately.
| Oxygen sensor |
50-60
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| Detonation sensor |
20
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| Bolt of fastening of the CKP sensor |
10
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| Bolt of fastening of the CMP sensor |
10
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| Nipple sockets of fuel lines |
10-14
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