alternator AUDI S4 1998 B5 / 1.G Engine Manual

12
Electric circuit of fan control:
Engine
for vehicles with air-conditioning system:
Integrated in the pressure switch for air
conditioner F129 is the high-pressure switch
for activating a higher fan setting.
The pressure switch is mounted below the
right-hand headlight behind the bumper.
Components:
F18/F54 Radiator fan thermoswitch
F95 Thermoswitch for continued coolant
function
F129 Pressure switch for air conditioner
(only for vehicles with air conditioner)
V293 Control unit for radiator fan
V7 Radiator fan (induced-air fan)
V51 Continued coolant circulation pump
V177 Fan 2 for radiator (forced-air fan)
(only for vehicles with air conditioner)
1 Terminal 30, positive supply via fuse
on 8-socket relay plate
2 Terminal 61, D+ (alternator) via fuse on
8-way relay
3 Fan activation (only for vehicles with
air conditioner)
M_
V293 F18
F54
F129
V177V7 V51
M_
M_
SSP 198/17
*
*
F95
*
P
P
123

only for vehicles with air conditioner
Air-conditioning pressure switch F129

18
Front view of engine
SSP 198/51

Engine
Camshaft adjustment
valve N208
Knock sensor G66
Intake-air temperature
sender G42
Knock sensor G61
Hall sender G163
Charge air cooler
Charge air cooler
Oil filter
Oil pressure
switch
Air-cond. compressor
Visco fan
Alternator
Power assisted steering
pump drive