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Hi, thank you for your post, so, i don't think that could be a big issue, unless you are drive constantly at 118-120 C degrees temp, I realised that the engine was overheating by the message on start-stop system switched off for "work temperature not maintained" that usually appears only when you ...

Thank you, already seen both, so, after a week of use with high heating on to avoid overheating and repetitive check of radiator hoses, finally the shroud seems slightly moving, because started to open the thermostat only above 3000rpm, now in a travers of 280km no issues, and on a deep check seems ...

very useful information, thank you! yesterday absolutely no issues with DPF regeneration, but today in 10 miles hoverheated up to 117 degrees.... starting drive me crazy! maybe i used early heating system as different from yesterday.... i`ll keep you updated... seems a tv series!

pardon, on the tank the code is G12E050A3 5litres, -35°C original VW group, in fact by the others pictures the G12E040A3 one protects down to -25 °C which I assume that could be 40%-60% and this one is protecting for more 10 degrees below, should be 50%...

I bought this the code on the bottle is G12E040A3
Perhaps could be the 40% one? Bought on eBay, I have to worry about is not the 50-50 one?

No probs, thank you, actually I was quite surprised about this that the diverter started working again, my as 1.4 tdi bluemotion cusb 90 hp is around almost 5 litres, I got the 5 litres tank and there is just a 1-200 mls..

An interesting update, last week I changed the cooling fluid, after a deep flush with several filling from empty system of demineralised water (6 times) and putted on the original VW G12 evo, the system was overheated on test run in road up to 110 Celsius degrees (from obd monitor, 98 on dashboard ...

ok, fair enough, I start thinking about the wrong cooling fluid, it is a G13 but yellow, and on the bottle there isn't the specific about Vw Tl 774-J (G13 original vw) perhaps
it is due to this....
today with old on checked, from cold some delay to start working diverter, but once started from obd ...

hi, thank you for the info, please, try to check here.... seems that with a VCDS work it could to exclude the solenoid that is piloting the diverter to open and close, to put to deactivated, or other solution to put a 1k ohm resistor to trick the ecu (avoiding to have engine check light on the ...

Ok,
First: thank you for your answer
Second: ok because on some spare parts website there is still as spare part the variable flow coolant pump, and obviously a spare part without that divertor system… ok you mean that the best coolant liquid is G12 evo? Do you know if there is a chance of managing ...

Hi all of you, thank you for be part of this forum.
my issue is with a Polo 2015 90 bhp diesel bluemotion 1.4L engine cusb, since a few month i noticed that on start and stop system showing error about working temperature not kept, and the temperature tends to go up, after checking on internet ...