Help needed.
While I had the coolant pipes off the bus over the weekend to reroute and make new ones up I thought I'd replace the coolant temp sensors for peace of mind etc...
The T4 is an AJT with AirCon and auxilliary pump.
Popped down to Euro Car Parts for the two sensors,
Got supplied a two pin sensor and a 4 pin sensor without thinking any more about it until I came to change them this afternoon.
Part number matched the top 2 pin sensor so in it went, but the the 4 pin was completely different.
I was supplied FEBI 059919501A but removed VAG 078919501C. Stuck the supplied unit in and hurried to the net to check.
The removed sensor is not recognised for the T4. OK - as everything has been working - hasn't it? - so what should it be...
So looked up the sensors online, but according to the ETKA image the green 4 pin supplied by ECP is a top sensor (part ID #7), see below;
TOP HOUSING SENSOR
(7) 025906041A temperature sensor, control unit, F >> 70-X-053 924 2 pin, blue, 20MM ;;1 AEU,ACV,AET,, AUF
(7) 251919501D temperature sensor, for vehicles with electro059919501A ni- cally regulated air condit., F >> 70-X-053 924 2 pin, green/black, 20MM ;;;1 AJA
(7) 074919501 temperature sensor, for coolant temperature gauge, F 70-X-053 925>> 4 pin, brown, 20MM ;;;1 AJA
(7) 6U0919501B temperature sensor, for vehicles with electric tachograph 20MM, green/black 1 AET,AEU,ACV,, AJT,APL,AUF,, AVT
(7) 059919501A double temperature sensor, F 70-X-053 925>> 4 pin, green, 20MM ;;1 AEU,AET,ACV,, AJT,AHY,APL,, AUF,AVT,AYC,, AXG,AYY
(7) 357919501 temperature sensor, for vehicles with electric tachograph 20MM, green/black 1 AJA
LOWER HOUSING SENSOR
(8) 701919369C temperature sensor with switch, for coolant temperature gauge, and/or, additional coolant pump, F >> 70-X-053 924 -- + 93/88C, 4 pin, blue/white, 20MM ;;;;;1
(8) 021919369 thermal switch, for vehicles with radiator fan run-on, and/or, additional coolant pump, F 70-X-053 925>> 93/88C 20MM, 2 pin, blue/white ;;;;;1 AET,AEU,AJA,, APL,AYC,AYY,, AXG,ACV
(8) 701919369D temperature sensor with switch, for coolant temperature gauge, and/or, for vehicles with radiator fan run-on -- + 100/95C, 4 pin, black/blue, 20MM 1 ACV,AUF,APL,, AVT
(8) 701919369E thermal switch, for deactivating the air- conditioning system, and/or, radiator fan 105/112C 20MM, 106/102C, 4 pin, green, 3 stages 1
Can anybody shed some light on the correct sensor required for the AJT with A/C, with temp gauge, auxilliary pump and radiator fan run-on?
While I had the coolant pipes off the bus over the weekend to reroute and make new ones up I thought I'd replace the coolant temp sensors for peace of mind etc...
The T4 is an AJT with AirCon and auxilliary pump.
Popped down to Euro Car Parts for the two sensors,
Got supplied a two pin sensor and a 4 pin sensor without thinking any more about it until I came to change them this afternoon.
Part number matched the top 2 pin sensor so in it went, but the the 4 pin was completely different.
I was supplied FEBI 059919501A but removed VAG 078919501C. Stuck the supplied unit in and hurried to the net to check.
The removed sensor is not recognised for the T4. OK - as everything has been working - hasn't it? - so what should it be...
So looked up the sensors online, but according to the ETKA image the green 4 pin supplied by ECP is a top sensor (part ID #7), see below;
TOP HOUSING SENSOR
(7) 025906041A temperature sensor, control unit, F >> 70-X-053 924 2 pin, blue, 20MM ;;1 AEU,ACV,AET,, AUF
(7) 251919501D temperature sensor, for vehicles with electro059919501A ni- cally regulated air condit., F >> 70-X-053 924 2 pin, green/black, 20MM ;;;1 AJA
(7) 074919501 temperature sensor, for coolant temperature gauge, F 70-X-053 925>> 4 pin, brown, 20MM ;;;1 AJA
(7) 6U0919501B temperature sensor, for vehicles with electric tachograph 20MM, green/black 1 AET,AEU,ACV,, AJT,APL,AUF,, AVT
(7) 059919501A double temperature sensor, F 70-X-053 925>> 4 pin, green, 20MM ;;1 AEU,AET,ACV,, AJT,AHY,APL,, AUF,AVT,AYC,, AXG,AYY
(7) 357919501 temperature sensor, for vehicles with electric tachograph 20MM, green/black 1 AJA
LOWER HOUSING SENSOR
(8) 701919369C temperature sensor with switch, for coolant temperature gauge, and/or, additional coolant pump, F >> 70-X-053 924 -- + 93/88C, 4 pin, blue/white, 20MM ;;;;;1
(8) 021919369 thermal switch, for vehicles with radiator fan run-on, and/or, additional coolant pump, F 70-X-053 925>> 93/88C 20MM, 2 pin, blue/white ;;;;;1 AET,AEU,AJA,, APL,AYC,AYY,, AXG,ACV
(8) 701919369D temperature sensor with switch, for coolant temperature gauge, and/or, for vehicles with radiator fan run-on -- + 100/95C, 4 pin, black/blue, 20MM 1 ACV,AUF,APL,, AVT
(8) 701919369E thermal switch, for deactivating the air- conditioning system, and/or, radiator fan 105/112C 20MM, 106/102C, 4 pin, green, 3 stages 1
Can anybody shed some light on the correct sensor required for the AJT with A/C, with temp gauge, auxilliary pump and radiator fan run-on?
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