1 - 15 Nm
2 - Toothed belt
q Mark D.O.R. before removing
q Check for wear
q Do not kink
q Removing, installing and tensioning → Chapter
3 - Coolant pump
q Check for ease of movement
q If damaged or leaking renew complete
q Removing and installing → Chapter
4 - O-ring
q Renew
5 - Coolant thermostat
q Checking: heat-up thermostat in water
q Opening commences approx. 87 °C
q Ends approx. 102 °C
q Opening lift min. 7 mm
q Removing and installing → Chapter
6 - O-ring
q Renew if damaged
7 - Connection
8 - To heat exchanger
q Coolant hose connection diagram → Chapter
9 - O-ring
q Renew if damaged
10 - Connector
q 4-pin
11 - Coolant temperature sender -G62-
q With coolant temperature gauge sender -G2-
q For engine control unit
q If necessary release pressure in cooling system before removing
q Checking → Chapter
12 - Retaining clip
q Check seated securely
13 - To top of radiator
q Coolant hose connection diagram → Chapter
14 - Retaining clip
15 - Lower coolant hose
q From bottom of radiator
q Coolant hose connection diagram → Chapter
q Secured to radiator with retaining clip
q Check securely seated
16 - Oil cooler
q Removing and installing → Item
17 - From heat exchanger
q Coolant hose connection diagram → Chapter
18 - Coolant pipe
q Secured to cylinder block
q Coolant hose connection diagram → Chapter
19 - Cap
q Check with cooling system tester -V.A.G 1274- or -SAT 1274- and adapter -V.A.G 1274/4-
q Test pressure 1.4 … 1.6 bar
20 - O-ring
q Renew if damaged
21 - 10 Nm
22 - Expansion tank
q Carry out leak test of cooling system with cooling system tester -V.A.G 1274- or -SAT 1274- and adapter -V.A.G 1274/4-
23 - From upper coolant pipe, lower junction
q Coolant hose connection diagram → Chapter
24 - O-ring
q Renew if damaged
25 - Connector
q 2-pin
26 - From upper coolant pipe, lower junctiong
q Coolant hose connection diagram → Chapter
27 - Coolant continued circulation pump -V51-
28 - To turbocharger
q Coolant hose connection diagram → Chapter
