ssp305 The 2.5 l R5 TDI engine
ssp305 The 2.5 l R5 TDI engine
ssp305 The 2.5 l R5 TDI engine
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18<br />
Engine mechanics<br />
Coolant circuit<br />
<strong>The</strong> figure shows the coolant circuit of the Transporter 2004 with an supplementary coolant heater.<br />
Various variants are used depending on specification.<br />
Key<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
First heat exchanger<br />
Coolant thermostat (opens when coolant<br />
temperature exceeds 80 °C)<br />
Cylinder head<br />
Exhaust gas recirculation cooler<br />
Coolant pump<br />
Cooler<br />
Oil cooler<br />
8<br />
9<br />
10<br />
11<br />
12<br />
13<br />
14<br />
15<br />
305_008<br />
Cylinder block<br />
Vent pipe<br />
Expansion tank<br />
Heater coolant shut-off valve N279<br />
Non-return valve<br />
Second heat exchanger (for rear passenger<br />
compartment)<br />
Supplementary coolant heater<br />
Recirculation pump
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