Coolant level warning on display panel.

denis · 12th February 2011, 19:37

This afternoon I was out for a spin on the M20 and went over a bump in the road (actually a bridge expansion joint) and momentarily at exactly that moment the low coolant warning came up on the dash and lasted about a second then extinguished.
On checking the coolant level later there is no problem but I wondered what might have caused the warning to comeup. I put it down to a relay contact bounce or similar. The other point is that on checking the Haynes circuit diagrams I can't find any indication of a low coolant sensor.
Can anybody throw light on this and if so where is the sensor???

I see Jules did a thread on this on the 12th December 2009. It would appear there is no sensor, which is curious considering this afternoons experience!!!

COLVERT · 12th February 2011, 20:02

All very strange as my handbook says the 'diesel only' has the low engine coolant warning light. !!!
As you say, "where is the sensor" ??

Colvert.

debbiefudge · 12th February 2011, 20:16

Hi,
As far as I'm aware, there isn't one.

I've recently spoken to Patrick of Sterling and he says that one is being developed, for the 75.

I guess the best thing is still to check your levels frequently.

Regards, Debbie.

tsautos · 12th February 2011, 20:19

There isn't a coolant level sensor, check the screen wash

Jules · 12th February 2011, 20:51

BMW put Low Coolant warning in the OBD software but didn't fit a sensor to the M47R. (R was designated by BMW for the Rover version)

The other M47 variants in BMW Cars did have the sensor so I'm told.

There will be gremlin/electronic spike (call it what you will) causing triggering of the Low Coolant circuitry.
Nothing to worry about it's such a rare occurance.

Mrs Jules has seen the warning on our Message display ONCE in 5 years.
Tsautos you are welcome to suggest to Mrs Jules she was mistaken for the Low Screenwash but I certainly believe her!
My life would not be worth living NOT to believe her.............believe me!!
Not only did she see the Radiator & Fan Symbol in Amber, it also came up in plain english on the message centre.

denis · 13th February 2011, 00:29

All I can say is that the warning that came up was exactly as shown in the handbook (engine block and in red).
Is it possible that they use this warning for the screen wash level as an alternative as there is no engine coolant level sensor???????

Jules · 13th February 2011, 12:03

No Dennis
Screenwash is separate lamp.
Surprised you have not seen that yet!

Take it yours dash is the non Message Centre display ?

tsautos · 13th February 2011, 13:18

jules I said There is no coolant level sensor and there isn't.
The warning light may well be in the configuration as is self levelling but if there is no sensor to trigger it then the only thing to worry about is paranoia.
you will get lights that show on the ipk if fuses are put were they shouldn't be or when a configuration hasn't been done for new parts or upgrades

denis · 13th February 2011, 13:50

Jules/Tsautos,

Come on chaps this is getting a bit over the top.
Yes I have a full message centre as my car is all singing and dancing and this is not paranoia. I simply said that the low coolant sensor (indicator I should have said) came up momentarily and then went out and I was curious about others opinions on the event. I put my reason to it which is reasonably logical. I do not expect it to occur again in the near future, if ever, and I definitely ain't going looking at mythical misplaced fuses as these have never been touched since having the car and the only electrical upgrade has been a Synergy2. The car runs perfectly and has done since I bought it 2 years ago.
Also I don't see a low windscreen wash level indication because I never let it get that low but I might let it run down just for the hell of it!!!

Jules · 13th February 2011, 17:03

Quote:

Originally Posted by tsautos

jules I said There is no coolant level sensor and there isn't.
The warning light may well be in the configuration as is self levelling but if there is no sensor to trigger it then the only thing to worry about is paranoia.
you will get lights that show on the ipk if fuses are put were they shouldn't be or when a configuration hasn't been done for new parts or upgrades

Read the first sentence of my post no5 !

12th February 2011, 19:37	#1
denis Gets stuck in 2004 MG-ZT CDTi 135 Saloon in TROPHY YELLOW + Synergy Two-wow and an Aussy import RAV 4 2.4L Join Date: Nov 2008 Location: Folkestone Posts: 784 Thanks: 4 Thanked 30 Times in 22 Posts	Coolant level warning on display panel. This afternoon I was out for a spin on the M20 and went over a bump in the road (actually a bridge expansion joint) and momentarily at exactly that moment the low coolant warning came up on the dash and lasted about a second then extinguished. On checking the coolant level later there is no problem but I wondered what might have caused the warning to comeup. I put it down to a relay contact bounce or similar. The other point is that on checking the Haynes circuit diagrams I can't find any indication of a low coolant sensor. Can anybody throw light on this and if so where is the sensor??? I see Jules did a thread on this on the 12th December 2009. It would appear there is no sensor, which is curious considering this afternoons experience!!! Last edited by denis; 12th February 2011 at 19:44.. Reason: Jules

12th February 2011, 20:16	#3
debbiefudge Avid contributor rover 75. 1.8 turbo. 2003. petrol. manual. silver Join Date: Jan 2011 Location: portslade Near Brighton. East Sussex. Posts: 175 Thanks: 0 Thanked 0 Times in 0 Posts	coolant level sensor Hi, As far as I'm aware, there isn't one. I've recently spoken to Patrick of Sterling and he says that one is being developed, for the 75. I guess the best thing is still to check your levels frequently. Regards, Debbie.

12th February 2011, 20:51	#5
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	Low Coolant warning on a diesel? BMW put Low Coolant warning in the OBD software but didn't fit a sensor to the M47R. (R was designated by BMW for the Rover version) The other M47 variants in BMW Cars did have the sensor so I'm told. There will be gremlin/electronic spike (call it what you will) causing triggering of the Low Coolant circuitry. Nothing to worry about it's such a rare occurance. Mrs Jules has seen the warning on our Message display ONCE in 5 years. Tsautos you are welcome to suggest to Mrs Jules she was mistaken for the Low Screenwash but I certainly believe her! My life would not be worth living NOT to believe her.............believe me!! Not only did she see the Radiator & Fan Symbol in Amber, it also came up in plain english on the message centre. __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

13th February 2011, 12:03	#7
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	No Dennis Screenwash is separate lamp. Surprised you have not seen that yet! Take it yours dash is the non Message Centre display ? __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

13th February 2011, 13:50	#9
denis Gets stuck in 2004 MG-ZT CDTi 135 Saloon in TROPHY YELLOW + Synergy Two-wow and an Aussy import RAV 4 2.4L Join Date: Nov 2008 Location: Folkestone Posts: 784 Thanks: 4 Thanked 30 Times in 22 Posts	Jules/Tsautos, Come on chaps this is getting a bit over the top. Yes I have a full message centre as my car is all singing and dancing and this is not paranoia. I simply said that the low coolant sensor (indicator I should have said) came up momentarily and then went out and I was curious about others opinions on the event. I put my reason to it which is reasonably logical. I do not expect it to occur again in the near future, if ever, and I definitely ain't going looking at mythical misplaced fuses as these have never been touched since having the car and the only electrical upgrade has been a Synergy2. The car runs perfectly and has done since I bought it 2 years ago. Also I don't see a low windscreen wash level indication because I never let it get that low but I might let it run down just for the hell of it!!! Last edited by denis; 13th February 2011 at 17:35.. Reason: indicator

12th February 2011, 20:02	#2
COLVERT This is my second home R75 Saloon. Join Date: Feb 2009 Location: France/or Devon. Posts: 14,003 Thanks: 3,851 Thanked 2,167 Times in 1,816 Posts	All very strange as my handbook says the 'diesel only' has the low engine coolant warning light. !!! As you say, "where is the sensor" ?? Colvert.

12th February 2011, 20:19	#4
tsautos Loves to post MG EXPRESS Join Date: Dec 2010 Location: STOURBRIDGE Posts: 439 Thanks: 0 Thanked 4 Times in 4 Posts	There isn't a coolant level sensor, check the screen wash

13th February 2011, 00:29	#6
denis Gets stuck in 2004 MG-ZT CDTi 135 Saloon in TROPHY YELLOW + Synergy Two-wow and an Aussy import RAV 4 2.4L Join Date: Nov 2008 Location: Folkestone Posts: 784 Thanks: 4 Thanked 30 Times in 22 Posts	All I can say is that the warning that came up was exactly as shown in the handbook (engine block and in red). Is it possible that they use this warning for the screen wash level as an alternative as there is no engine coolant level sensor???????

13th February 2011, 13:18	#8
tsautos Loves to post MG EXPRESS Join Date: Dec 2010 Location: STOURBRIDGE Posts: 439 Thanks: 0 Thanked 4 Times in 4 Posts	jules I said There is no coolant level sensor and there isn't. The warning light may well be in the configuration as is self levelling but if there is no sensor to trigger it then the only thing to worry about is paranoia. you will get lights that show on the ipk if fuses are put were they shouldn't be or when a configuration hasn't been done for new parts or upgrades