Attention: In order to boil, the idle control valve works, you need to put your hand on the valve. When the engine is running, the valve should vibrate due to the pulsed voltage supply.
Withdrawal
Loosen the clamp and remove the intake air hose from the throttle valve.
unscrew the mount throttle valve.
Attention: Do not disconnect the gas draft and hoses of the throttle valve heating system.
Loosen the guide tube for the oil level indicator.
Loosen the 2 idle air control valve bolts at the intake manifold and pull the valve downwards.
Press the wire clamp and disconnect the plug from the idle air control valve. Remove the O-ring and rubber band. Loosen the clamps and disconnect the hoses.
Resistance test
Connect an ohmmeter to the connector pins on the valve and check the resistance. Prescribed value for terminals 1 and 3 - 40±5 Ω; for terminals 2 and 1 or 2 and 3 - 20±5 Ω.
Dynamic Check
Connect electrical plug.
Rotary valve piston fully open or close by hand.
Turn on the ignition. The rotary piston should now assume a position where approximately 50% of the bore cross-section is open and remain in that position.
Installation
Secure the hoses to the valve with clamps. Always replace the seal, to facilitate the installation of the sealing ring on the valve, lubricate the valve body with technical vaseline.
Insert the control valve and secure with screws. Screw on guide tube for oil level indicator.
Connect plug to valve.
Install the throttle valve.
Fit the intake air hose and secure with a clamp.
Read the contents of the DME fault code memory. After troubleshooting, erase the contents of the drive.