A | Battery |
B | Starter |
C | Alternator |
C1 | Voltage regulator |
D | Ignition/starter switch |
J4 | Dual tone horn relay |
J59 | X contact relief relay |
J226 | Starter inhibitor and reversing light relay, on the 13 position additional relay carrier |
S162 | Fuse -1- (30), in fuse box/battery |
S163 | Fuse -2- (30), in fuse box/battery |
S176 | Fuse -4- (30), in fuse box/battery |
S177 | Fuse -5- (30), in fuse box/battery |
T2e | 2-pin connector, near starter (only models without air conditioner) |
T4 | 4-pin connector, near starter (only models with air conditioner) |
T6 | 6-pin connector, brown, in control unit protective housing, in plenum chamber, left |
500 | Screw connection -1- (30), on relay plate |
502 | Screw connection -1- (30a), on relay plate |
* | Only models with manual gearbox |
-••- | From September 2000 |
** | Up to August 2000 |
--- | Only models with automatic gearbox |
D | Ignition/starter switch |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
Q6 | Glow plugs - engine |
S10 | Fuse in fuse box |
S229 | Fuse in fuse box |
T2 | 2-pin connector, in cable channel left in engine compartment |
T6 | 6-pin connector, brown, in control unit protective housing, in plenum chamber, left |
T14a | 14-pin connector, in cable channel left in engine compartment |
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 |
F8 | Kick-down switch |
F60 | Idling switch |
G28 | Engine speed sender |
G79 | Accelerator pedal position sender |
J52 | Glow plug relay |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
J317 | Terminal 30 voltage supply relay, above the central electrics |
T3 | 3-pin connector, on engine front |
T6 | 6-pin connector, brown, in control unit protective housing, in plenum chamber, left |
T6a | 6-pin connector |
T10h | 10-pin connector, blue, in control unit protective housing, in plenum chamber, left |
T121 | 121-pin connector |
200 | Earth connection (screening), in engine compartment wiring harness |
A98 | Positive (+) connection -4- (30), in dash panel wiring harness |
D74 | Connection (86), in engine compartment wiring harness |
G2 | Coolant temperature sender |
G62 | Coolant temperature sender |
G71 | Intake manifold pressure sender |
G72 | Intake manifold temperature sender |
J217 | Automatic gearbox control unit |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
N79 | Heater element (crankcase breather) |
T10 | 10-pin connector, orange, in protective housing for connectors, in plenum chamber, left |
T10w | 10-pin connector, white, in protective housing for connectors, in plenum chamber, left |
T14a | 14-pin connector, in cable channel left in engine compartment |
T68 | 68-pin connector |
T121 | 121-pin connector |
131 | Earth connection -2-, in engine compartment wiring harness |
608 | Earth point, in plenum chamber, centre |
* | Radiator fan control unit/ radiator fan relay connection |
** | Connection for air conditioner |
-•• | Only models with four speed automatic gearbox (AG4) |
J104 | ABS/ABS with EDL control unit |
J217 | Automatic gearbox control unit |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
T10 | 10-pin connector, orange, in protective housing for connectors, in plenum chamber, left |
T10w | 10-pin connector, white, in protective housing for connectors, in plenum chamber, left |
T25 | 25-pin connector, on ABS/ABS with EDL control unit |
T47 | 47-pin connector, ABS with EDL/TCS/ESP control unit (up to July 2000) |
T47a | 47-pin connector, ABS/ABS with EDL/TCS/ESP control unit (from August 2000) |
T68 | 68-pin connector, only models with four speed automatic gearbox (AG4) |
T68a | 68-pin connector, only models with five speed automatic gearbox (AG5) |
T121 | 121-pin connector |
A121 | Connection (high bus), in dash panel wiring harness |
A122 | Connection (low bus), in dash panel wiring harness |
--- | Only models with automatic gearbox |
G40 | Hall sender (for camshaft position) |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
N240 | Unit injector solenoid valve, No. 1 cyl. |
N241 | Unit injector solenoid valve, No. 2 cyl. |
N242 | Unit injector solenoid valve, No. 3 cyl. |
N243 | Unit injector solenoid valve, No. 4 cyl. |
T3a | 3-pin connector, on engine front |
T8 | 8-pin connector, in engine compartment, left |
T121 | 121-pin connector |
D101 | Connection -1-, in engine compartment wiring harness |
G70 | Air mass meter |
G81 | Fuel temperature sender |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
N18 | Exhaust gas recirculation valve |
N75 | Charge pressure control solenoid valve |
N239 | Intake manifold flap change-over valve |
T5 | 5-pin connector |
T10w | 10-pin connector, white, in protective housing for connectors, in plenum chamber, left |
T121 | 121-pin connector |
E29 | Connection, in engine wiring harness |
E45 | Cruise control system switch** |
E227 | Cruise control system (CCS) button (Set)** |
F36 | Clutch pedal switch* |
J217 | Automatic gearbox control unit |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
T10 | 10-pin connector, orange, in protective housing for connectors, in plenum chamber, left |
T10e | 10-pin connector, black, in control unit protective housing, in plenum chamber, left |
T10s | 10-pin connector, next to steering column |
T10w | 10-pin connector, white, in protective housing for connectors, in plenum chamber, left |
T68a | 68-pin connector |
T121 | 121-pin connector |
A27 | Connection (speed signal), in dash panel wiring harness |
A155 | Connection -2- (86), in dash panel wiring harness |
* | Only models with manual gearbox |
** | Only models with CCS |
*** | Only models with manual gearbox or four speed automatic gearbox (AG4) |
-••- | Only models with five speed automatic gearbox (AG5) |
F | Brake light switch |
F47 | Cruise control system brake pedal switch/diesel direct inj. system |
J248 | Diesel direct injection system control unit, in plenum chamber, centre |
J359 | Low heat output relay*, in protective housing in engine compartment, left (53) |
J360 | High heat output relay*, in protective housing in engine compartment, left (100) |
Q7 | Coolant heating elements* |
S13 | Fuse in fuse box |
T6 | 6-pin connector, brown, in protective housing for connectors, in plenum chamber, left |
T10e | 10-pin connector, black, in protective housing for connectors, in plenum chamber, left |
T10w | 10-pin connector, white, in protective housing for connectors, in plenum chamber, left |
T121 | 121-pin connector |
A18 | Connection (54), 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 manual gearbox |
** | from September 2000 |
G | Fuel gauge sender*** |
G6 | Fuel pump (pre-supply pump) |
J17 | Fuel pump relay, on additional relay carrier above the relay plate |
S228 | Fuse 28 in fuse box |
S232 | Fuse 32 in fuse box |
S234 | Fuse 34 in fuse box |
S243 | Fuse 43 in fuse box |
T6 | 6-pin connector, brown, in control unit protective housing, in plenum chamber, left |
T14a | 14-pin connector, near battery |
42 | Earth point, next to steering column |
81 | Earth connection -1-, in dash panel wiring harness |
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 |
* | From May 2000 |
** | From September 2000 |
-•-- | Up to April 2000 |
--- | Up to August 2000 |
*** | Only models with four-wheel drive ⇒ Current flow diagram four-wheel drive |
F1 | Oil pressure switch |
G22 | Speedometer sender (hall sender, on gearbox) |
G32 | Coolant shortage indicator sender |
G266 | Oil level/oil temperature sender*** |
J217 | Automatic gearbox control unit |
S5 | Fuse in fuse box |
S7 | Fuse in fuse box |
T10h | 10-pin connector, blue, in control unit protective housing, in plenum chamber, left |
T14a | 14-pin connector, near battery |
T68a | 68-pin connector |
85 | Earth connection -1-, in engine compartment wiring harness |
269 | Earth connection (sender earth) -1-, in dash panel wiring harness |
608 | Earth point, in plenum chamber, centre |
A20 | Connection (15a), in dash panel wiring harness |
B163 | Positive (+) connection -1- (15), in interior wiring harness |
* | Only models with manual gearbox |
*** | Only with flexible service interval display |
--- | Only models with automatic gearbox (AG4) |
-••- | Only models with five speed automatic gearbox (AG5) |
G1 | Fuel gauge |
G3 | Coolant temperature gauge |
G5 | Rev. counter |
J285 | Control unit with display in dash panel insert |
K3 | Oil pressure warning lamp |
K28 | Coolant temperature/coolant shortage warning lamp |
K38 | Oil level warning lamp*** |
K105 | Reserve fuel warning lamp |
T12a | 12-pin connector, connection for Climatronic only |
T32 | 32-pin connector, blue |
T32a | 32-pin connector, green |
* | Only models with manual gearbox |
** | From September 2000 |
--- | Up to August 2000 |
*** | Only with flexible service interval display |
-••- | Only models with five speed automatic gearbox (AG5) |
E86 | Multi-function display call-up button |
E109 | Multi-function display, memory switch |
G17 | Ambient temperature sensor |
G21 | Speedometer |
H3 | Warning buzzer |
J119 | Multi-function display |
J285 | Control unit with display in dash panel insert |
J533 | Data bus diagnostic interface, in dash panel insert |
K2 | Alternator warning lamp |
K29 | Glow period warning lamp |
K31 | Cruise control system warning lamp |
T6e | 6-pin connector |
T16 | 16-pin connector, in dash panel centre, self-diagnosis connection |
T32 | 32-pin connector, blue |
T32a | 32-pin connector, green |
42 | Earth point, next to steering column |
49 | Earth point, on steering column |
135 | Earth connection -2-, in dash panel wiring harness |
A27 | Connection (speed signal), in dash panel wiring harness |
A76 | Connection (diagnosis wire K), in dash panel wiring harness |
* | From May 2000 |
** | From September 2000 |