A) Version with presure sensor
Disconnect fuel hoses (1 through 3).
Loosen nuts (4).

51511001 - click to zoom
 
Remove pressure regulator located the header and throttle
valve switch from below.
Note when fitting: Check delivery pressure, adjusting if
necessary - see 13 51 504.



Siehe auch 13 51 004
51511002 - click to zoom
 
B) Version with air flow sensor
Remove intake pipe for cylinder 3.
Note when fitting: Cut off and replace seal (4).
Cut the required piece from an original seal.

51511003 - click to zoom
 
Detach pressure regulator at ring line.
Disconnect fuel return hose.
Disconnect vacuum hose to throttle housing and remove
the pressure regulator.

51511004 - click to zoom