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3 RA Removing And Installing_replacing 3_2-way Valve (M44, M52, S52) > < 2 RA Checking Fuel Delivery Pressure Of Fuel Pump (M20,M30,M40,M42,M43, M44,M52,S38,S|Page 592
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For further test procedures, refer to 

13 31 . . . Fuel-pressure Test

Pull off fuel pump relay (3).

1. 

Relay for oxygen-sensor heating

2. 

Master relay for Digital Engine Electronics (DME)

3. 

Fuel pump relay

Connect special tool 61 3 050 to terminal 87b and terminal 30.

Press button and read delivery pressure of fuel pump off pressure
gauge,

refer to Technical Data 16 14 

RA  Checking fuel delivery pressure of fuel pump (M20,M30,M40,M42,M43, M44,M52,S38,S

BMW AG - TIS

10.02.2013  05:46

Issue status (12/2007) Valid only until next DVD is issued

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3 RA Removing And Installing_replacing 3_2-way Valve (M44, M52, S52) > < 2 RA Checking Fuel Delivery Pressure Of Fuel Pump (M20,M30,M40,M42,M43, M44,M52,S38,S|Page 592