![]() However it is in great shape overall (original paint and a couple dings) and of course, a couple of technical problems. This vehicle has had an extrodinary amount of money poured into it (new idle compensating valve, new sensors, new coolant resvoir, tune-up !!) and so-on). The coolant temp switch (for the light) and the level switch was replaced at the dealer. VW Polo temperature light flashing fixed.The Temperature blinks red and there is a beeping alarm too, 3 long beeps.Seeing the coolant temperature RED warning. (This is what the previous owner was told by the dealership). I was told that a steady light indicates over-temp and a flashing light indicated low coolant. ![]() I don't have the manual for this vehicle yet, or the repair manual, so I'm going with what I'm told until I can secure them. I did not know about the type of coolant (good to know) I'll have to check. The fans do work, but I've noticed that they come on quite often (more than I'm used to with other vehicles). I have not checked the accuracy of the factory temp gauge (yet). The engine runs at approx 100'C (+/-) and the coolant fans do work. Yellow red (engine temp to cluster) Pale green/blue (Expansion tank coolant level sander) Brown (Ground) Yellow in the center of plug (don't remember) You can also remove the cluster and screw all 7mm nuts on the foil.The Temp light starts flashing around 10 seconds after start-up, regardless of engine temp. if you check out my fusebox faq you can see the 2 pins on fusebox for level sensor, if you stuff a bit of wire into the back across the pins and see if that sorts it. Plug unplug the cluster main harness/connector a few time. The coolant light glowing blue when you start your car is a warning that the engine isnt yet up to its optimal running temperatureso dont push the engine hard. Fix VW Jetta instrument cluster displaying a red triangle central warning light please check the coolant level, displayed on the MMI. this is how the mk2 carbys were from new! if that sorts it then you just need to do the same thing but more permanent. or whip out all the lighting loom to find the problemīut you'll probably find if a wire has snapped it'll be near the header tank, so i would pop the header tank off its brackets and check the wire over where it comes out of the main loom looking for obvious damage. Volkswagen Beetle: The red temperature warning light flashes. also follow the loom from there back to the brake servo area too, look for any spots that are crimped or chaffed. The red flashing on startup means the car is slightly low on coolant, the heat of the engine is expanding the coolant and the level goes over the minimum in the coolant bottle and turns the flashing red light off. Then the blue light comes on to indicate the vehicle is cold and the. The red engine coolant warning light means that the coolant fluid is too hot and that the engine is overheating. if its a later 90 then the loom will all be wrapped in tape rather than chunky plastic which probably has all fallen off, leaving wiring exposed to damage. This could be due to or a combination of: The engine is working too hard. This could be that the vehicle is towing or carrying a heavy load or that the vehicle is being driven fast with high engine speeds (RPM). Last thing you want to do is bypass the sensor thinking all is well, then whatever damaged the wire carry on and do worse damage to the loom. The coolant level warning light on your Volkswagen typically indicates insufficient engine coolant in your automobile, which could put your engine at risk of overheating. A few years back i was chatting to tim (aquavalver) who mentioned after a paint job in the engien bay he kept blowing headlight fuses.
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