To check the crankcase pressure on the 2.5-I-TDI engine, the VA G 1371 measuring device must be used.
High pressure crankcase gases lead to loss of engine oil. Therefore, the crankcase pressure must be checked as part of the service, as well as in the event of oil leaks.
Warm up the engine to an engine oil temperature of over +80°C.
Remove the dipstick to measure the oil level and instead attach and firmly press the VAG 1371 measuring device.
With the engine running at idling speed, measure for 3 minutes.
If the crankcase pressure is more than 5 mbar, the crankcase filter with seal must be replaced. This work must be carried out at a service station.
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