Danger | Risk of death. Death may occur if body parts are drawn into rotating vehicle parts. | Do not insert your hand into rotating parts. Wear closed and snug-fitting work clothes. Secure area of rotating vehicle components against unauthorized access. | |
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
Danger | Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel. | No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only. | |
Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge | |||
Tools fuel injectors - Testing ME-SFI hydraulic system | |||
Connect socket box - ME-SFI - testing of fuel injectors | |||
Test wiring harness for testing fuel injection valves | |||
| When removing the couplings at the ME-SFI [ME] control unit, first remove the center coupling; during attachment, the center coupling D is the last to be attached. | ||
| Connect socket box to ME-SFI [ME] control unit (N3/10). | ||
| Remove 2-pin couplings at injection valves. | ||
| Remove fuel distributor rail together with injection valves; in this connection, do not disconnect fuel feed line. | ||
| Attach self-produced electric line (048) to injection valves in succession. | ||
| Hold injection valves in turn in measuring cup. | ||
| Check | ||
Function check | |||
Test procedure | Operation/requirement | Specified value | Possible cause/remedy |
1 | ME-SFI [ME] injection valves hydraulics check injection valve leaktightness | ||
2 | ME-SFI [ME] injection valves hydraulics check injection valve function and spray pattern |
Referenced documents
- ad0761p2000e
- ad0761p2000e Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge
- ad0761p230001b Tooling for fuel injectors - ME-SFI - testing of hydraulic system
- ad0761p230002b Connect socket box - ME-SFI - testing of fuel injectors
- as0000z000401a Risk of death. Death may occur if body parts are drawn into rotating vehicle parts.
- as0000z003501a Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)
- as4700z000101a Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.
- wf5850p076101a Test wiring harness for testing fuel injection valves