Coolant Circuit (X 16 XEL, Y 16 XE, Z 16 XE, X 18 XE1, Z 18 XE, Z 18 XEL)
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Engine |
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X 16 XEL, Y 16 XE, Z 16 XE |
X 18 XE1, Z 18 XE, Z 18 XEL |
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Radiator |
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Design |
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Cross-flow |
Cross-flow |
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Coolant Filling Quantities 1) |
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Manual transmission |
l |
6.7 |
6.7 |
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Manual transmission with air conditioning |
l |
7.0 |
7.0 |
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Automatic transmission |
l |
6.9 |
6.9 |
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Automatic transmission with air conditioning |
l |
6.9 |
6.9 |
1) The "green" coolant 90 297 545 / 19 40 656 must be used up to MY '01, the "red" coolant 09 194 431 / 19 40 650 must be used as of MY '01, a concentration of 50% must be ensured. The two coolants must never be mixed together under any circumstances.
Coolant Circuit (Continued)
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Engine |
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X 16 XEL, Y 16 XE, Z 16 XE |
X 18 XE1, Z 18 XE, Z 18 XEL |
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Coolant pump |
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Design |
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Centrifugal pump |
Centrifugal pump |
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Delivery rate |
l / min. rpm |
149
6000 |
146
6000 |
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Fan |
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Design |
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Electric fan |
Electric fan |
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Auxiliary air fan |
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Design |
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Electric fan |
Electric fan |
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Thermoswitch |
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Installation point |
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in radiator |
in radiator |
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Switch on |
° C |
100 |
- |
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Switch off |
° C |
95 |
- |
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Thermostat |
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Design |
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Bypass |
Bypass |
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Start of opening |
° C |
92 |
- |
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Fully open |
° C |
107 |
- |
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Compensation tank cap |
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Opening pressure |
kPa (bar) |
120 - 150 (1.2 - 1.5) 1) |
- |
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Boiling point |
° C |
123 |
- |
1) For X 16 XEL with secondary air system: 140 - 150 (1.4 - 1.5).
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