A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
D | Ignition/starter switch |
J4 | Dual tone horn relay |
J59 | X-contact relief relay |
S162 | Fuse 1 (30), in fuse holder on battery |
S163 | Fuse 2 (30), in fuse holder on battery |
S176 | Fuse 4 (30), in fuse holder on battery |
S177 | Fuse 5 (30), in fuse holder on battery |
T2e | 2-pin connector, near starter (in models without air conditioning system) |
T4 | 4-pin connector, near starter (in models with air conditioning system) |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
500 | Screw connection 1 (30), on relay plate |
502 | Screw connection (30a), on relay plate |
* | only models with heated pin heating for radiator fan |
** | up August 2000 |
-●●- | from September 2000 |
D | Ignition/starter switch |
J248 | Diesel direct injection system control unit, in centre plenum chamber |
J317 | Terminal 30 voltage supply relay, above the central electrics |
Q6 | Glow plugs, engine |
S10 | Fuse 10 in fuse holder |
S229 | Fuse 29 in fuse holder |
S237 | Fuse 37 in fuse holder |
T2 | 2-pin connector, in cable channel left in engine compartment |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
T14a | 14-pin connector, near battery (from May 2000), in cable channel left in engine compartment (up to April 2000) |
T121 | 121-pin connector |
501 | Screw connection 2 (30), on relay plate |
504 | Screw connection (87F), on relay plate |
A2 | Positive connection (15), in dash panel wiring harness |
A32 | Positive connection (30), in dash panel wiring harness |
A80 | Connection 1 (X), in dash panel wiring harness |
A98 | Positive connection 4 (30), in dash panel wiring harness |
A104 | Positive connection 2 (15), in dash panel wiring harness |
** | from September 2000 |
*** | from November 2001 |
-●●- | up to October 2001 |
G81 | Fuel temperature sender |
G149 | Modulating piston movement sender |
J52 | Glow plug relay |
J248 | Diesel direct injection system control unit, in centre plenum chamber |
N146 | Metering adjuster |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T10f | 10-pin connector, on front of engine |
T121 | 121-pin connector |
42 | Earth point, next to steering column |
49 | Earth point, on steering column |
81 | Earth connection 1, in dash panel wiring harness |
135 | Earth connection 2, in dash panel wiring harness |
D74 | Connection (86), in engine compartment wiring harness |
F25 | Connection 1, in diesel direct injection system wiring harness |
*** | from May 2000 |
-●-- | up to April 2000 |
G2 | Coolant temperature sender |
G62 | Coolant temperature sender |
G72 | Intake manifold temperature sender |
J248 | Diesel direct injection system control unit, in centre plenum chamber |
T2b | 2-pin connector, in cable channel left in engine compartment |
T14a | 14-pin connector, near battery (from May 2000), in cable channel left in engine compartment (up to April 2000) |
T121 | 121-pin connector |
V157 | Intake manifold flap motor |
131 | Earth connection 2, in engine compartment wiring harness |
608 | Earth point, in centre of plenum chamber |
D102 | Connection 2, in engine wiring harness |
* | War 0,35 br/bl |
J104 | ABS/ABS control unit with EDL |
J248 | Diesel direct injection system control unit, in centre plenum chamber |
N18 | Exhaust gas recirculation valve |
T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
T25 | 25-pin connector, on ABS/ABS control unit with EDL |
T47 | 47-pin connector, on ABS with EDL control unit /TCS/ESP (up to July 2000) |
T47a | 47-pin connector, on ABS/ ABS with EDL control unit /TCS/ESP (from August 2000) |
T121 | 121-pin connector |
A121 | Connection (high bus), in dash panel wiring harness |
A122 | Connection (low bus), in dash panel wiring harness |
** | connection air conditioning system |
F8 | Kick-down switch |
F60 | Idling speed switch |
G28 | Engine speed sender |
G79 | Accelerator position sender |
G80 | Needle lift sender |
J248 | Diesel direct injection system control unit, in centre plenum chamber |
T2a | 2-pin connector, on front of engine |
T3 | 3-pin connector, on front of engine |
T6a | 6-pin connector |
T10h | 10-pin connector, blue, in connector protective housing, on left in plenum chamber |
T121 | 121-pin connector |
200 | Earth connection (screening), in engine compartment wiring harness |
E45 | Cruise control system switch** |
E227 | Cruise control system (CCS) SET button** |
F36 | Clutch pedal switch |
J248 | Diesel direct injection system control unit, in centre plenum chamber |
J255 | Climatronic control unit |
N108 | Commencement of injection valve |
N109 | Fuel shut-off valve |
T4q | 4-pin connector (from May 2001) |
T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
T10f | 10-pin connector, on front of engine |
T10s | 10-pin connector, next to steering column |
T10w | 10-pin connector, white, in connector protective housing, on left in plenum chamber |
T16b | 16-pin connector |
T17a | 17-pin connector, behind centre dash panel |
T121 | 121-pin connector |
A155 | Connection 2 (86), in dash panel wiring harness |
* | Revolution signal engine control unit up to April 2002 |
-●●- | only models with Climatronic from May 2002 |
** | only models with GND |
F | Brake light switch |
F47 | Brake pedal switch |
J248 | Diesel direct injection system control unit, in centre plenum chamber |
J359 | Low heat output relay**, in protective housing on left in engine compartment (53) |
J360 | High heat output relay**, in protective housing on left in engine compartment (100) |
Q7 | Glow plugs, coolant** |
S13 | Fuse 13 in fuse holder |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T10 | 10-pin connector, orange, in connector protective housing, on left in plenum chamber |
T10e | 10-pin connector, black, in connector protective housing, on left in plenum chamber |
T121 | 121-pin connector |
A18 | Connection (54), in dash panel wiring harness |
A27 | Connection (speed signal), in dash panel wiring harness |
A155 | Connection 2 (86), in dash panel wiring harness |
D50 | Positive connection (30), in engine compartment wiring harness |
D98 | Connection (glow plugs), in engine compartment wiring harness |
** | only models with glow plugs coolant heating |
G | Fuel gauge sender |
G32 | Coolant shortage indicator sender |
S232 | Fuse 32 in fuse holder |
S234 | Fuse 34 in fuse holder |
S243 | Fuse 43 in fuse holder |
T6 | 6-pin connector, brown, in connector protective housing, on left in plenum chamber |
T14a | 14-pin connector, near battery (from May 2000), in cable channel left in engine compartment (up to April 2000) |
269 | Earth connection (sender earth) 1, in dash panel wiring harness |
A71 | Connection (86), in dash panel wiring harness |
A100 | Connection 2 (87), in dash panel wiring harness |
B168 | Connection (86), in interior wiring harness |
* | only models with multifunction display |
*** | models with multifunction display and without Climatronic only |
F1 | Oil pressure switch |
G22 | Speedometer sender, on gearbox |
G266 | Oil level and oil temperature sender** |
J285 | Control unit in dash panel insert |
K3 | Oil pressure warning lamp |
K38 | Oil level warning lamp** |
S5 | Fuse 5 in fuse holder |
S7 | Fuse 7 in fuse holder |
T14a | 14-pin connector, near battery (from May 2000), in cable channel left in engine compartment (up to April 2000) |
T32 | 32-pin connector, blue |
T32a | 32-pin connector, green |
85 | Earth connection 1, in engine compartment wiring harness |
608 | Earth point, in centre of plenum chamber |
A20 | Connection (15a), in dash panel wiring harness |
B163 | Positive connection 1 (15), in interior wiring harness |
** | only flexible service interval display |
E86 | Multifunction display call-up button |
E109 | Multifunction display memory switch |
G17 | Ambient temperature sensor |
J119 | Multifunction display |
J255 | Climatronic control unit |
J285 | Control unit in dash panel insert |
J533 | Data bus diagnostic interface, in dash panel insert |
K29 | Glow period warning lamp |
K31 | Cruise control system warning lamp |
T6e | 6-pin connector |
T12a | 12-pin connector, behind centre dash panel |
T16 | 16-pin connector, in centre dash panel, self-diagnosis connection |
T20 | 20-pin connector |
T32 | 32-pin connector, blue |
T32a | 32-pin connector, green |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
* | only models with multifunction display |
-●●- | only models with Climatronic |
*** | models with multifunction display and without Climatronic only |