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Citroen Xantia 1.9 Turbo Diesel 1996
Moderator: RichardW
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Citroens:-
'81 2CV Club
'05 C15
'97 Xantia Exclusive estate
others:-
Jeep XJ Cherokees x 3
'96 Cadillac Eldorado
'99 Cadillac STS
& the numerous "abandoned projects"
'81 2CV Club
'05 C15
'97 Xantia Exclusive estate
others:-
Jeep XJ Cherokees x 3
'96 Cadillac Eldorado
'99 Cadillac STS
& the numerous "abandoned projects"
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Hi,
An update, fitted radiator and car running again. However the temp was only getting up 75 on the gauge, so I assumed possible thermostat failure, opening to early. Have replaced with a new one which is 82 degrees but temp still not climbing above 80 Thermostat is defenitly opening as top hose is getting hot, but the temp just not registering at gauge properly. So I've checked to see whether the fans are coming on, but they are not. Could this be the thermostat sensor or something else. Any help would be appreciated.
Thanks
Kevin
An update, fitted radiator and car running again. However the temp was only getting up 75 on the gauge, so I assumed possible thermostat failure, opening to early. Have replaced with a new one which is 82 degrees but temp still not climbing above 80 Thermostat is defenitly opening as top hose is getting hot, but the temp just not registering at gauge properly. So I've checked to see whether the fans are coming on, but they are not. Could this be the thermostat sensor or something else. Any help would be appreciated.
Thanks
Kevin
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Your low Fan speed will only come on at 92 °C and the high fan speed at 97 °C for a Series 1 XUD 1.9 TD
Or at 90 °C and 101 °C respectively if fitted with a Bitron Box with A/C.
Or at 90 °C and 101 °C respectively if fitted with a Bitron Box with A/C.
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Marc
Marc
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Hi Marc,
Are you saying not to worry, I know before the fans were cutting in around 85 mark, obviously with a radiator leak. But I still expect the engine to reach normal temp, I was in some heavy traffic today but the temp still didn't go any futher than 80 i know the weather is colder at present but it should not effect engine temp that much. My car does have AC, what is the briton box it's obviously on the car somewhere.. I did bleed the system off through the bleed screws, could it be an air lock. It used to go just above 85 all the time and fans would cut in. The other thing is what is the right thermostat for this model, seems everywhere I've checked is from 80 to 82 83 and 85
on every car part site including Mister auto.
Thanks
Kevin
Are you saying not to worry, I know before the fans were cutting in around 85 mark, obviously with a radiator leak. But I still expect the engine to reach normal temp, I was in some heavy traffic today but the temp still didn't go any futher than 80 i know the weather is colder at present but it should not effect engine temp that much. My car does have AC, what is the briton box it's obviously on the car somewhere.. I did bleed the system off through the bleed screws, could it be an air lock. It used to go just above 85 all the time and fans would cut in. The other thing is what is the right thermostat for this model, seems everywhere I've checked is from 80 to 82 83 and 85
on every car part site including Mister auto.
Thanks
Kevin
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Pop your VIN up (or your reg if you don't have it).
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Marc
Marc
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
There are multiple temp sensors/senders on the engine, all on the water outlet/thermostat housing:
These control separate functions, eg:
- injection ECU control
- water temp control unit (Bitron), for fan operation
- temp gauge ('dial')
So it is possible for the gauge to mis-read, even though everything else is ok.
Thermostat is listed as 83°C.
These control separate functions, eg:
- injection ECU control
- water temp control unit (Bitron), for fan operation
- temp gauge ('dial')
So it is possible for the gauge to mis-read, even though everything else is ok.
Thermostat is listed as 83°C.
Chris
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
There are various setups on the 1.9D XUD - depending on the variant of the engine and with / without A/C, but the thermostatic regulator on all these opens at 83 °C as Chris notes.
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Marc
Marc
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Kevin posted his VIN earlier, Marc: VF7**************[VIN obfuscated, can be read by forum staff].
That cooling parts diag is for it.
That cooling parts diag is for it.
Chris
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Hi thanks everybody for your help,
Good pictures Chris thanks, I will check tomorrow, see how many sensors it has. And probably should check fuses also as needed to remove plug from A/C. The car has never ever been upto 90 degrees, not in the three years
I have owned it, not even in the summer. Fans always cut in about 85.
Thanks
Kevin
Good pictures Chris thanks, I will check tomorrow, see how many sensors it has. And probably should check fuses also as needed to remove plug from A/C. The car has never ever been upto 90 degrees, not in the three years
I have owned it, not even in the summer. Fans always cut in about 85.
Thanks
Kevin
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Thanks Chris.
Thought I'd put this up for good measure - the cooling circuit For Kenny's Xantia - there are 6 of these circuits, but this one should be correct from the RPO and VIN:
Click picture to magnify and clarify.
Here is the data for your vehicle with A/C and the BITRON unit for info:
Thought I'd put this up for good measure - the cooling circuit For Kenny's Xantia - there are 6 of these circuits, but this one should be correct from the RPO and VIN:
Click picture to magnify and clarify.
(1) Bleeding the cooling system. |
(2) Radiator drain screw. |
(3) Coolant temperature sensor Warning and gauge. |
(4) Coolant temperature sensor Bitron box - Pre-warning. |
(5) Coolant temperature sensor injection . |
(6) Coolant temperature sensor Engine cooling fans. |
(7) Thermostat. |
Here is the data for your vehicle with A/C and the BITRON unit for info:
Vehicle type | - | Colour identification | Fan : Slow speed | Fan : High speed | Engine hot (refrigeration authorised) | Air conditioning cut-off | Pre-warning | Warning | Post-cooling (temperature and operation time) : degrees | Post-cooling (temperature and operation time) : Time |
Turbocharged Diesel | With air conditioning | violet | 90 °C | 101 °C | 70 °C | 112 °C | 115 °C | 118 °C | 101 °C | 6 mn |
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Marc
Marc
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
scropionking wrote: ↑22 Jan 2019, 18:03 Hi thanks everybody for your help,
Good pictures Chris thanks, I will check tomorrow, see how many sensors it has. And probably should check fuses also as needed to remove plug from A/C. The car has never ever been upto 90 degrees, not in the three years
I have owned it, not even in the summer. Fans always cut in about 85.
Thanks
Kevin
I'd not trust the accuracy of the gauges that much. I've had 9 TDs and they all read slightly differently.
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Thanks Marc,
Will go through everything tomorrow, thats a good picture too and if I'm not mistaken there it shows the thermostat the other way around. Yet when I look on diagrams and been taught spring side always goes to the engine side and top triangle facing radiator. I can't see it going in any other way, but this diagram shows otherwise. This can't be right surely.
Thanks
Kevin
Will go through everything tomorrow, thats a good picture too and if I'm not mistaken there it shows the thermostat the other way around. Yet when I look on diagrams and been taught spring side always goes to the engine side and top triangle facing radiator. I can't see it going in any other way, but this diagram shows otherwise. This can't be right surely.
Thanks
Kevin
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
Like I said Kevin, there are 6 circuits and these changed based on build number:
Key to the Diagrams:
Your build number is 07158 from your VIN, so would be number 6, which is the one I posted before, so this might clear up the confusion and another reason why VIN is key as there were so many mods and changes on these throughout production.
Circuit No. | Vehicle type | gearbox | air conditioning | Validity |
1 | atmospheric diesel | Mechanical | Without | Up to number OPR 6355 |
2 | atmospheric diesel | Mechanical | With | Up to number OPR 6355 |
3 | atmospheric diesel | Mechanical | With or without | From OPR 6356 number |
4 | atmospheric diesel | automatic | With or without | - |
5 | Turbocharged Diesel | Mechanical | With or without | Up to number OPR 6355 |
6 | Turbocharged Diesel | Mechanical | With or without | From OPR 6356 number |
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Marc
Marc
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
The temp sensor connectors have been known to be colour-coded thus:
Injection (engine ECU) - Green
Water temp control unit (Bitron) - Brown
Gauge - Blue
Might help differentiate.
Pull the Blue one, and see whether it affects the gauge.
With engine running, pulling the Brown one usually puts fans on to full speed. (You might have to turn IGN off and then on again to return to normal.)
Injection (engine ECU) - Green
Water temp control unit (Bitron) - Brown
Gauge - Blue
Might help differentiate.
Pull the Blue one, and see whether it affects the gauge.
With engine running, pulling the Brown one usually puts fans on to full speed. (You might have to turn IGN off and then on again to return to normal.)
Chris
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Re: Citroen Xantia 1.9 Turbo Diesel 1996
The Bitron Box Temp Sensor should be a 2-way Brown and the Gauge Temperature Sensor is a 2-way Blue connection (for this specific vehicle).
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Marc
Marc