– Using connecting hose supplied, join connection piece
-V.A.G 1274 B/1- to cooling system tester -V.A.G 1274 B-.
– Using hand pump on tester, build up a pressure of approx.
1.0 bar.
DANGER!
Risk of scalding! Before the cooling system tester
-V.A.G 1274 B- is disconnected from the connecting hose
or the connection piece -V.A.G 1274 B/1-, it is essential
that the pressure is first relieved. To do this, press pres-
sure relief valve on cooling system tester -V.A.G 1274 B-
until pressure gauge displays value of “0”.
If pressure drops:
– Find leaks and rectify.
Checking pressure relief valve in filler cap
– Screw sealing cap into adapter for cooling system tester
-V.A.G 1274/9-.
– Clamp connector -V.A.G 1274 B/1- into adapter for cooling
system tester -V.A.G 1274/9-.
– Using connecting hose supplied, join connection piece
-V.A.G 1274 B/1- to cooling system tester -V.A.G 1274 B-.
– Using hand pump on cooling system tester, build up a pres-
sure of approx. 1.6 bar.
The pressure relief valve must not open.
If the pressure relief valve opens prematurely:
– Renew cap.
– Increase pressure to over 1.6 bar.
The pressure relief valve must open.
If the pressure relief valve does not open:
– Renew cap.
1.9 Checking oil cooler for leaks
Engine codes CJDA, CJDD ⇒ Page 294.
Engine codes CPYA, CPYB, CPYC, CPYD, CPYE ⇒ Page 296.
Industriemotoren - Industrial Engines 2009 ▶
Workshop Manual for Diesel Engine (2.0 l/36-75 kW_EA 189) 05.2015
3
1 Removing and installing parts of cooling system
293
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