Volkswagen Phaeton 2003 Workshop Manual page 113

1.6.2 Checking oil pressure
– Check oil pressure at different revolutions:
♦ 1,500 rpm: at least 1.7 bar
♦ 2000 rpm: 3.0...5.5 bar
♦ Over 2000 rpm: maximum 7.0 bar
If the specifications are not attained:
– Check strainer in suction line for dirt.
– Check pressure pipe between oil pump and cylinder block for
leaks.
– Rectify mechanical damage, e.g. bearing damage.
At higher engine speeds, the oil pressure must not exceed 7.0
bar.
If the specification is exceeded:
– Check oil channels.
Pressure relief valve in oil pump may be stuck.
– Renew oil pump ⇒ page 100
pump.
, Dismantling and assembling oil
6-cylinder injection engine - Edition 02.2014
1. Parts of lubrication system
Phaeton 2003 ➤
107