I know what I posted is. You are looking for something that is dielectric

 

this maybe

THERMAL COMPOUND GC-EXTREME

GELID Solutions GC Extreme Thermal Compound Paste | eBay

 

Computer store that also sells parts will have some.

 

ok an update for all and whomever might have this issue


I have narrowed it down to ecu. What helped me was the summer in UK as I noticed as soon as the car is started and driving for a bit and switched off, that is the end of it .
no more start or on days that was too hot no start at all even if the engine was dead cold.


What I did was took the ecu and put it in the freezer for 2 minutes and then back in and straight away the car starts

the car starts if you do it straight after switch off but if you wait 1 or 2 minutes then it is dead

so it is 99.9% the ecu and have just bought a new one.


for those that may see this frustrating issue in future, here is a summary :

car does not start
transmission fault comes up(idrive)
fuel pump issue comes up(idrive)
dsc issu comes up ( idrive)
fuel relay pump will continue to run the fuel pump even when the car is off . If you lock the door the fuel pump will shutdown after few minutes

when diagnosed with inpa I can see all those modules are saying they are missing a signal from ecu!

so now my question is what do I need to recode to get the new ecu to work ? is it just the keys and alignment os cas and ecu or more to it ?

Do I have to adjust the VIN ?

When people say close the ecu , what do they mean ?

 

Hi All,

Just a quick note to say I fixed the issue.
It turned out to be the ecu .



Symptoms were:

When in hot wheather the car won't start. engine cranks but no start

when car ran for few minutes and switched off for more than 1 minutes, it won't start . engine cranks but no start

faults about dsc, transmission and fuel pump on i drive .

when trying to connect to the ecu while the issue was present using inpa , i was getting ecu unresponsive.

I fixed it by buying a second hand ecu, cloning mine to the 2nd hand one and then re syncing ews using inpa.

all working now

many thanks

 

what software did you use to clone dme with? So far all the software I’ve found costs 3-5k us.