Member Since: 09 Jan 2011
Location: Chilterns
Posts: 4130
Waxing?
2nd Mar 2018 3:36 pm
Jenks535
Member Since: 01 Mar 2018
Location: Sheffield
Posts: 3
You'll need to remove the engine cover, then it's near to the front of the engine bay.
Same problem occurred this morning. I'll be keeping a flask in the truck from now on !!
Photo showing location in the gallery.
2nd Mar 2018 4:38 pm
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
Waxing - legs or back sack and crack??
Seriously though yes it could but different fuel grades will be effected in differing ways
A colleague has suggested his poor starting was massively improved by filling up with the premium diesels in the very cold weather in 2007/8Must stop buying shiny toys....
2nd Mar 2018 9:05 pm
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
From the Manual -
The engine coolant temperature sensor is located in the top hose at the coolant manifold junction. The ECT sensor
provides the ECM and the instrument cluster with engine coolant temperature status.
The ECM uses the temperature information for the following functions:
Fueling calculations
Limit engine operation if engine coolant temperature becomes too high
Cooling fan operation
Glow plug activation time.
The instrument cluster uses the temperature information for temperature gauge operation. The engine coolant temperature
signal is also transmitted on the CAN bus by the instrument cluster for use by other systems.
The ECMECT sensor circuit consists of an internal voltage divider circuit which incorporates an NTC thermistor. As the
coolant temperature rises the resistance through the sensor decreases and vice versa. The output from the sensor is the
change in voltage as the thermistor allows more current to pass to earth relative to the temperature of the coolant.
The ECM compares the signal voltage to stored values and adjusts fuel delivery to ensure optimum driveability at all
times. The engine will require more fuel when it is cold to overcome fuel condensing on the cold metal surfaces inside the
combustion chamber. To achieve a richer air/fuel ratio, the ECM extends the injector opening time. As the engine warms up
the air/fuel ratio is leaned off.Must stop buying shiny toys....
2nd Mar 2018 9:05 pm
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
In Russia some of my customers have told me they put a hairdryer into the air inlet for 5 mins or so before starting another guy told me that his wife fills up two hot water bottles with boiling water and puts them on top of her engine block under a blanket then goes and makes coffee, drinks it in the warm then goes back outside and removes it all and starts the carMust stop buying shiny toys....
2nd Mar 2018 9:08 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13894
Gazellio @ Prestige Cars wrote:
Waxing?
ooops
i should have said about diesel waxing , oh blimey that sounds worse
3rd Mar 2018 12:24 am
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13894
darrind wrote:
Waxing - legs or back sack and crack??
Seriously though yes it could but different fuel grades will be effected in differing ways
A colleague has suggested his poor starting was massively improved by filling up with the premium diesels in the very cold weather in 2007/8
always thought that ref the super diesel having the extra additives helps preventing the waxing of diesel at lower temperatures
in the winter time i’ve done a few tanks of super diesel in between the normal fuel fill ups
plus great info ref the glow plugs etc and how the different systems control them, there was me thinking it was a simple operation
3rd Mar 2018 12:30 am
GSman17
Member Since: 10 Feb 2018
Location: Carterton
Posts: 7
FBH
Bodsy wrote:
Sounds like glow plugs failed. I’ve fitted loads of the Altox controller to fire up the FBH to pre warm the engine and stop you having to struggle starting when cold.
I can fit for you or just supply if you want to fit yourself.
Fire up the Fbh from your phone via app or text or website.
Im also interested in the heater as my glow plugs are also suffering Cant PM you as new to forum and won't let me PM till I've done 3 posts.Loving my D3 55 plate
3rd Mar 2018 7:04 am
DJBertram
Member Since: 08 Feb 2018
Location: Hertfrod
Posts: 10
Jenks535 can you share where the sensor is? I can’t locate the tarpnidea didn’t work stayed at -4
3rd Mar 2018 9:57 am
DJBertram
Member Since: 08 Feb 2018
Location: Hertfrod
Posts: 10
Just seen your response
3rd Mar 2018 10:04 am
Erea
Member Since: 19 Mar 2012
Location: Munster
Posts: 1509
No start plenty of smoke last evening. Then I used the hairdryer under the engine cover, After 10 minutes it started instantly. Next time I will just concentrate on that temp sensor and see if heating only that will start the engine
3rd Mar 2018 10:21 am
DJBertram
Member Since: 08 Feb 2018
Location: Hertfrod
Posts: 10
Jenna 535... thank you! It worked, I used the hairdryer for 2 mins on the sensor, put the cover back on, first turn of the key and hey presto!! Does hot water work as well? I was a bit sceptical about pouring water in an electrical sensor... I assume that’s safe????
3rd Mar 2018 10:27 am
Erea
Member Since: 19 Mar 2012
Location: Munster
Posts: 1509
darrind wrote:
From the Manual -
The engine coolant temperature sensor is located in the top hose at the coolant manifold junction. The ECT sensor
provides the ECM and the instrument cluster with engine coolant temperature status.
The ECM uses the temperature information for the following functions:
Fueling calculations
Limit engine operation if engine coolant temperature becomes too high
Cooling fan operation
Glow plug activation time.
The instrument cluster uses the temperature information for temperature gauge operation. The engine coolant temperature
signal is also transmitted on the CAN bus by the instrument cluster for use by other systems.
The ECMECT sensor circuit consists of an internal voltage divider circuit which incorporates an NTC thermistor. As the
coolant temperature rises the resistance through the sensor decreases and vice versa. The output from the sensor is the
change in voltage as the thermistor allows more current to pass to earth relative to the temperature of the coolant.
The ECM compares the signal voltage to stored values and adjusts fuel delivery to ensure optimum driveability at all
times. The engine will require more fuel when it is cold to overcome fuel condensing on the cold metal surfaces inside the
combustion chamber. To achieve a richer air/fuel ratio, the ECM extends the injector opening time. As the engine warms up
the air/fuel ratio is leaned off.
So quick question is this sensor faulty and would fitting a new one help.
3rd Mar 2018 11:00 am
darrind
Member Since: 04 Jul 2008
Location: In A World of My Own!
Posts: 2863
Hi
I think the sensor is working correctly as I assume the system doesn't have the ability to realise the glowplugs are FUBAR'd so it assumes the set up needs to be right to utilise them. By putting heat in you are telling the system that its not cold and then it just starts as if it was slightly cool rather than bl**dy cold - although the mixture is wrong, it should start
One other thing that may help is to put the battery on charge overnight if the battery is getting a bit tired it may not be getting full power into the plugs.
Must stop buying shiny toys....
4th Mar 2018 3:15 pm
DJBertram
Member Since: 08 Feb 2018
Location: Hertfrod
Posts: 10
I have a full bat and it doesn’t work, however..... when using a Sealey RS125 roadstarter, it starts first time every time... thing is I was hoping for a solution without the road starter. One thing to note, when using the road starter pack is it play havoc with the sat nav system for about 10 minutes..
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