Clean injector valves

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 BMW 325i, 2005 BMW 325Ci, 2004 BMW 325i, 2004 BMW 325Ci, and 2003 BMW 325i. However, it is still accessible from the selected car via links, so may be relevant.

Install injector valves in special tool 13 6 205.

Connect special tool 13 6 206 to injector valves and to a 12 V car battery.

Fig 1: Connecting Special Tool 13 6 206 To Injector Valves And To 12 V Car Battery

Courtesy of BMW OF NORTH AMERICA, INC.

Use ultrasonic cleaning unit 13 6 200 to clean injector valves.

Read operating instructions before operating ultrasonic cleaning unit.

Fig 2: Identifying Ultrasonic Cleaning Unit 13 6 200

Courtesy of BMW OF NORTH AMERICA, INC.

Attach injector valves to special tool 13 6 200 with special tool 13 6 205.

Fill special tool 13 6 200 with cleaning concentrate 13 6 207 as specified by manufacturer.

Perform cleaning procedure as specified by manufacturer.

Repeat leak test on cleaned injector valves.

Fig 3: Attaching Injector Valves To Special Tool 13 6 200 With Special Tool 13 6 205

Courtesy of BMW OF NORTH AMERICA, INC.

CAUTION: Do not carry out leak test in cleaning concentrate but rather in a water bath.
Only replace injector valves from which volume of air emerging exceeds the permitted limit of 2 bubbles within a 15 second period.

CAUTION: Install cleaned injector valves immediately in engine and run engine.

This flushes out any remaining cleaning concentrate thereby preventing injector valve corrosion.

Due to the risk of corrosion, cleaned injector valves can no longer be stored.