13 64 582 Checking injector valves for leaks and cleaning

WARNING: This page is about a different car, the 2002 BMW Z3 and 2001 BMW Z3. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: For Special Tool identification, see SPECIAL TOOLS - Z3 .

Special Tools Required:

13 6 200
13 6 205
13 6 206
13 6 207

Injector valves removed.

Injector valves removed. Mark sequence of injector valves relative to cylinders on each injector valve.

CAUTION: Observe country specific safety regulations when handling fuels and cleaning agents.

Recycling: Note national regulations.

Check Injector Valves For Leaks:

Clip fuel injectors into special tool 13 6 205.

Fig 1: Clipping Fuel Injectors Into Special Tool 13 6 205

Courtesy of BMW OF NORTH AMERICA, INC.

Connect special tool 13 6 206 to the injector valves.

Fig 2: Connecting Special Tool 13 6 206 To The Injector Valves

Courtesy of BMW OF NORTH AMERICA, INC.

To catch remaining fuel, wrap fuel injectors in clean cleaning cloth. Connect special tool 13 6 206 to a 12 V car battery.

Connect special tool 13 6 205 to compressed air connection of max. 5 bar.

Fig 3: Connecting Ultrasonic Cleaning System To Compressed Air

Courtesy of BMW OF NORTH AMERICA, INC.

Residual fuel is now blown out of the injector valves.

CAUTION: Carry out leak test only after remaining fuel has been blown out of injector valves.

Separate special tool 13 6 206 from the injector valves.

Separate special tool 13 6 206 from the injector valves. Install injector valves with special tool 13 6 205 in a container with hot water (60 ... 80°C).

Adjust air pressure at connection (1) on special tool 13 6 205 to max. 3 bar (motorsport models max. 5 bar).

Fig 4: Locating Connection On Ultrasonic Cleaning System

Courtesy of BMW OF NORTH AMERICA, INC.

Note volume of air emerging.

Permitted volume of air emerging: 2 air bubbles per injector valve within a 15 second period.

Note injector valves with larger volumes of air emerging.

Injector valves with larger amounts of air emerging must be cleaned.

Remove fuel injectors from water and dry thoroughly with compressed air.

Clean Injector Valves:

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 5: Installing Injector Valves To Ultrasonic Cleaning System

Courtesy of BMW OF NORTH AMERICA, INC.

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

Fig 6: View Of Ultrasonic Cleaning Unit 13 6 200

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Read operating instructions before operating ultrasonic cleaning unit.

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.

Fig 7: View Of Ultrasonic Cleaning System

Courtesy of BMW OF NORTH AMERICA, INC.

Perform cleaning procedure as specified by manufacturer.

Repeat leak test on cleaned injector valves.

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.