Injector Spray Pattern
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 Mercedes-Benz ML320, 2002 Mercedes-Benz E320, 2002 Mercedes-Benz CLK320, 2001 Mercedes-Benz ML320, and 2001 Mercedes-Benz E320. However, it is still accessible from the selected car via links, so may be relevant.
Connect jumper wire between ME-SFI control module connector "A" terminal No. 3 and ME-SFI control module connector "C" terminal No. 29 (socket box terminals No. 3 and 21). Turn ignition on. Hold fuel injectors one at a time in a container. Briefly actuate injector using a shop-made test wiring harness between socket box terminals No. 3 (-) and 2 (+). Observe fuel injector spray pattern. See Fig 1. If fuel injector spray pattern is okay, test is complete. If fuel injector spray pattern is not okay, possible cause is faulty fuel injector. Repair or replace as necessary.