Volkswagen Golf Service & Repair Manual: Checking cooling system for leaks
| Special tools and workshop equipment
required |
|
|
|
| Cooling system tester -V.A.G 1274 B- |
|
|
|
| Adapter for cooling system tester -V.A.G 1274/8- |
|
|
|
| Adapter for cooling system tester -V.A.G 1274/9- |
|
|
|
| – |
Open cap -arrow- on coolant
expansion tank. |
| Engine at operating temperature. |
The cooling system is under pressure when the engine is hot. Hot
steam/hot coolant can escape - risk of scalding. Risk of scalding to
skin and body parts.Wear protective gloves.Wear eye protection.Release
pressure by covering cap of coolant expansion tank with a cloth and
opening it carefully. |
|
|
| – |
Fit cooling system tester -V.A.G 1274 B- with adapter -V.A.G 1274/8-
on coolant expansion tank. |
| – |
Using hand pump on tester, build up a pressure of approx.
1.0 bar. |
| – |
If this pressure is not maintained, locate and rectify
leaks. |
|
|
|
| Checking pressure relief valve in filler cap |
| – |
Place cooling system tester -V.A.G 1274 B- with adapter -V.A.G 1274/9-
on filler cap. |
| – |
Build up pressure using hand pump of cooling system tester. |
| The pressure relief valve must open at a pressure of
1.6…1.8 bar. |
|
|
|
Special tools and workshop equipment required
Refractometer -T10007 A-
Drip tray for workshop hoist -VAS 6208-
Hose clip pliers -VAS 634 ...
Other materials:
Fault in the function of the automatic gearbox
First read and observe the introductory information
and safety warnings Emergency programme
There is a fault in the system if all the displays on the instrument cluster
for the selector lever positions have a light background. The automatic gearbox
is running in an emergency programme. The ...
Safety instructions for automatically dimmable interior mirror
WARNING
The mirror glass is made of several
layers and contains an electrolyte to achieve the
dimming functionality. Beware of liquid electrolyte
which runs out o ...
Tyre ageing
Even visually flawless, new or barely used tyres with
sufficient tread depth, which are older than six years, may show
significant reduction of wet properties and winter suitability
due only to ageing.
Tyre tests show that a contin ...
© 2016-2025 Copyright www.vwgolf.org
Draining and filling coolant