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. | |
Topical note | Notes on avoiding damage to ignition system | ||
Check | |||
Connecting and using test equipment | |||
Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge | |||
ME-SFI fuel injection and ignition system (ME), DTC memory | Fault codes from P0000 to P0299 | ||
Fault codes from P0300 to P0699 | |||
Fault codes from P0700 to P1747 | |||
| 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. | ||
| Note on measuring equipment/test connection column: The numbers entered in brackets, e.g. in 1.0 (2A) mean: A = coupling A in wiring diagram 2 = socket 2 in wiring diagram | ||
| Ignition: OFF | ||
| Connect test wiring harness with socket box to ME-SFI [ME] control unit (N3/10) according to connection scheme. Plug with red identification is currently not yet required, as still no function available in ME-SFI [ME] control unit. | ||
1 | ME-SFI [ME] gasoline injection system electrics check ME-SFI [ME] control unit circuit 30 | ||
2 | ME-SFI [ME] gasoline injection system electrics check ME-SFI [ME] control unit circuit 87 | ||
3 | |||
4 | ME-SFI [ME] gasoline injection system electrics check hot film MAF sensor | ||
5 | Intake air temperature sensor electrical test, fuel injection system, ME-SFI | ||
6 | ME-SFI [ME] gasoline injection system electrics check pressure sensor | | |
7 | ME-SFI [ME] gasoline injection system electrics check fuel pump relay | ||
8 | Coolant temperature sensor electrical test, fuel injection system, ME-SFI | ||
9 | ME-SFI [ME] gasoline injection system electrics check ME-SFI [ME] control unit rpm signal | ||
10 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor signal LH upstream of catalytic converter | ||
11 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor signal RH upstream of catalytic converter | ||
12 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor heater LH upstream of catalytic converter | ||
13 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor heater RH upstream of catalytic converter | ||
14 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor signal LH downstream of catalytic converter | ||
15 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor signal RH downstream of catalytic converter | with CODE (925) low-emission EURO3 | |
16 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor heater LH downstream of catalytic converter | with CODE (925) low-emission EURO3 | |
17 | O2ME-SFI [ME] gasoline injection system electrics check lambda sensor heater RH downstream of catalytic converter | with CODE (925) low-emission EURO3 | |
18 | ME-SFI [ME] gasoline injection system electrics check injection valve (Y62/1) | with CODE (925) low-emission EURO3 | |
19 | ME-SFI [ME] gasoline injection system electrics check injection valve (Y62/2) | ||
20 | ME-SFI [ME] gasoline injection system electrics check injection valve (Y62/3) | ||
21 | ME-SFI [ME] gasoline injection system electrics check injection valve (Y62/4) | ||
22 | ME-SFI [ME] gasoline injection system electrics check injection valve (Y62/5) | ||
23 | ME-SFI [ME] gasoline injection system electrics check injection valve (Y62/6) | ||
24 | ME-SFI [ME] gasoline injection system electrics check secondary air injection relay | with CODE (925) low-emission EURO3 | |
25 | ME-SFI [ME] gasoline injection system electrics check air pump switchover valve | with CODE (925) low-emission EURO3 | |
26 | ME-SFI [ME] gasoline injection system electrics check secondary air injection | with CODE (925) low-emission EURO3 | |
27 | ME-SFI [ME] gasoline injection system electrics check EGR pressure transducer | ||
28 | ME-SFI [ME] gasoline injection system electrics check resonance intake manifold switchover valve | ||
29 | ME-SFI [ME] gasoline injection system electrics check purge control valve actuation | ||
30 | ME-SFI [ME] gasoline injection system electrics check purge control valve vacuum control | ||
31 | ME-SFI [ME] gasoline injection system electrics check purge system | | |
32 | ME-SFI [ME] gasoline injection system electrics check activated charcoal canister shutoff valve | | |
33 | ME-SFI [ME] gasoline injection system electrics check tank pressure sensor | | |
34 | ME-SFI [ME] gasoline injection system electrics check oil sensor | ||
35 | ME-SFI [ME] gasoline injection system electrics check oil sensor | ||
36 | ME-SFI [ME] gasoline injection system electrics check suction fan control unit | ||
37 | ME-SFI [ME] gasoline injection system electrics check diagnostics line | ||
38 | ME-SFI [ME] electrics check crash signal | As of 06/98 |
Referenced documents
- ad0000p1000az Connecting and using test equipment
- ad0761p2000a
- ad0761p2000a Gasoline injection and ignition system (ME-SFI) - Diagnosis - Previous knowledge
- ad0761p4000a
- ad0761p4000a ME-SFI fuel injection and ignition system (ME), DTC memory
- ad0761p4000aa
- ad0761p4000aa ME-SFI fuel injection and ignition system (ME), DTC memory
- ad0761p4000ab ME-SFI fuel injection and ignition system (ME), DTC memory
- ad0761p4000ab
- ah1510p000201d Notes on avoiding damage to ignition system
- 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.