D.FYLAKTOS

Tomorrow i will post mine, are different than yours. I can have some measure for the coolant temperature but after the expansion tank, before the thermostat the experiment failed (i have posted photos in the past). Also i can have from the engine bay plus in the ''air cabinet'' filter area.

Back to shcool,i left the desk in the middle of the 80's but now we have Google search. .................................. In coolant systems, ΔT (delta T) represents the temperature difference between two points, typically the inlet and outlet temperatures of the coolant. It's a crucial measurement for assessing the efficiency of heat transfer within the cooling system. Temperature Difference: ΔT is calculated by subtracting the lower temperature from the higher temperature. Cooling System Efficiency: In a car's cooling system, a larger ΔT might indicate that the radiator is effectively removing heat from the engine coolant. Conversely, a smaller ΔT could suggest a problem with the radiator or other components, preventing proper heat dissipation. Monitoring and Diagnostics: ΔT is a key indicator used in diagnostics to identify issues like a faulty thermostat, a clogged radiator, or other cooling system problems.

I have found the photo of Average fuel consumption, it's almost identical to Total so the calibration is OK. @Thefeliciahacker The coolant performs betetr over 100 'C? How?

The coolant performs betetr over 100 'C? "γουατ αρε δηζ;"

Why there is a benefit for an old design engine to work in such a higher temperatures? 20 years back the French cars had the reputation that must do this to perform properly, i don't know if that was true or a rumour.

"The rule of the law is preferable to that of any individual" Aristotle, Greece 350 BC

Yes we know it,we read often news from US-UK about cars,laws etc that cameras with AI can take picture of a driver which uses phone while driving. https://www.gov.uk/using-mobile-phones-when-driving-the-law The Traffic Police here shows ''tolerance'' in many cases and that's not good in many cases. Cameras in traffic light started installing here but not in Highways,this will take many years because for many laws there is reaction from "Lefties" so there is a lot of bureaucracy and delay. The outrageous is that in case of a road accident (them or friend of them involved) the same persons start scream hysterically: "where are the cameras? the Police must check them, is there any material from cameras? why there is no camera in that road intersection?" etc. 🤬 I had a 90-95 'C radiator switch and a yellow ring thermostat sensor,the car was working much higher than before around 100 'C and this terrified me. Skoda Kantzos https://www.autotriti.gr/autoaccessories/jpg/news/1600/KANTZOS_1600x900ds.jpg mechanic (and ex-Felicia owner) told me to never do this again because i will have head gasket problems and try to reduce the temperature with a different radiator switch and thermostat sensor.

Sorry but i can't understand. 1st and second speed? You mean your radiator fan speed? 95-97 and 101-103 you mean Celsius? Your Felicia coolant temperatures get so hi? My radiator switch is 80-85 'C, why should i go one scale higher to 85-90 or more? By the way with the G13 what you fuel consumption while travelling in Highway? In your city there is not much traffic but what's the fuel consumption inside of it?

You are right, that's why i haven't take a picture while i was in the Mountain Roots, from now on i will take when i stop for an intermission or i arrive in the destination. I don't use a phone while i am driving in a trip, no matter if i rings as a call or sms i leave it in my jacket's pocket, i leave my wife to act as a "secretary" if someone from the family is trying to contact with me (will phone to her because i don't pick it up). 😉 As for the fuel consumption in Summer in City i don't think i will have opportunities to take some measures, with the gas prices getting higher i use a small motorcycle to work and back home. A Summer test (in traffic) using a/c too would be helpful but together with the problem finding a parking place every night a 100km test in City this would be a torture. By the way i have another trip to do in few days for my Summer vacations, when i return i will bring some informations with me.

The Mountain Root of that trip has an Λ shape (if i can characterise it like this) which means begins with turns in an uphill and after you reach the highest point it's a downhill. The first part puts more stress in the engine and the second in the brakes. In the top of the mountain for an instance i see the temperature to rise one click above the 90'C so it must be 92-93 'C, maybe the air is thinner to that spot but soon returns to normal. 95297 Km and i had 21 litres which means from the 94976 Km i have travelled 321 Km distance (according to the Trip meter is 321,1) the Total fuel consumption was 6,54 ltr/km or 43.19 British MPG. The % function of the TC-6 agrees with this number, shows 6.5 % litres. The last 16 kilometres were in traffic under hot sun (keep in mind in car were 2 persons with luggages) and this ruined a bit the Fuel Consumption but i had no time to take a picture right before the traffic started because my wife was grouching "this is dangerous, don't let the steering wheel" etc. 😆 I have broke all my previous records, i don't think i can get lower than where i am now.

I had 94972 Km and i had 67,2 litres then 94976 Km and i had 67,6 litres (that's only 4 km distance so i don't count this), refuel to the top and zeroing the TC-6 because the trip begins. 2 adults, gas tank full and some luggages in the trunk, Highway (100-110 km speed) and Mountain Roads. 95050 Km and i had 4,5 litres (Total fuel consumption) which means 75 km distance so fuel consumption % was 6,08 ltr/km or 46.46 British MPG (excellent). Few luggages added and some light traffic, Highway (110-120 km speed) and Mountain Roads, 95133 Km and i had 9,8 litres (Total fuel consumption) which means 83 km distance so fuel consumption % was 6,38 or 44.28 British MPG (very good). The results from the end of the trip in the next post, the new radiator and the new coolant helped a lot in Fuel Consumption sector.

In the gas station you refill till the pump stops automaticallly (the well know ''clack'' sound) or you push for more fuel?

Check the clamps in fuel line (in and Out),i had mine loose in the past and gas leak plus bad smell in the engine bay. Fuel filter is new? Spark plugs checked? Cabin filter is clean?

Felicia 1300cc Petrol 2000 year model.

Check the clamps in fuel line (in and Out),i had mine loose in the past and gas leak plus bad smell in the engine bay. Fuel filter is new? Spark plugs checked? Cabin filter is clean?

OE/OEM Part Number 6U0721335 Manufacturer Part Number 6U2721335D The weird think is that they give some other codes for Skoda as 008 039 260 008 039 415 8039256 8039415 Mhe most expensive are sold as ''set"

By the way: the first years of Εbay.cο.Uk here in GR many start buying items without paying attention to this, the first ''Oh No'' came from the guys which bought hadlights.

I remember in Youtube, Jaguar owners making complains that their car had interior parts from Ford trucks, Maserati from Chrysler etc.

For educational purposes: the side repeater cover of Felicia is orange, i have found that some others (even crystal clear) from VW models as Golf/Polo with a bit different front shape can fit, i have them for more than 15 years. I go to a VW parts store and i give them the VW code, they ask me ''which VW model you have'' and when i answer ''a Felicia'' the look me in a weird way. 😃

Different position and different tasks. The gauge on your panel takes signal from the thermostat switch and the radiator switch gives commands to the radiator fan. A dirty or with corrosion in pins or with broken plug-cables or faulty thermostat switch will give wrong commands to your gauge and the needle will make you crazy with it's indications. A faulty radiator switch will not give proper commands to your fan or can make it not start at all. You should remove properly any air bubbles from your system,i live in Greece,not so hot as in the Middle east but we have similar problems.

Does not work with Felicia,i have personal experience and i have posted photos.

May 2025, morning in Highway. I will take some photos now where the temperatures rises more and in City Traffic. Let's see how the new radiator/coolant helped the Fuel Consumption, i have data to compare with previous years.

While returning from the trip: 94778 Km and i had 53,4 litres 94940 Km and i had 63,4 litres ,that’s 6.13 ltr/Km or 46.08 British MPG (very good) Then the City Traffic started and unfortunately the fuel consumption start rising. 94948 Km and i had 64,4 litres 94957 Km and i had 65,5 litres 94961 Km and i had 66,4 litres 94972 Km and i had 67,2 litres, that's 11,87 ltr/Km or 23.80 British MPG (not so good). and counting...

As about the G12 plus i have some results after some Km distance. Of course since i changed the radiator i have not the same situation to compare, the system should be worked better since the old radiator had a lot ''in it's back'' after almost 25 years of use. I use the TC-6 and the Total indication (with the Greek letter Σ) to compare the fuel consumption. 94592 Km and i had 40,5 litres 94619 Km and i had 43,6 litres This was in City Traffic only, It's not the distance for which you can draw correct conclusions, it was 11.48 ltr/Km or 24.61 British MPG (not bad) After a while i had to make a trip (National Highway and Mountain Route but not in high rpm) 94778 Km and i had 53,4 litres ,that’s 6.16 ltr/Km or 45.86 British MPG (very good) To be continued...

As about the lambda sensor, learn from my mistake. https://www.briskoda.net/forums/topic/503246-confusion-with-bosch-lambda-sensors/ Buy the original and not some aftermarket and do not believe the seller ''according to the refference this is for you''. https://www.briskoda.net/forums/topic/503246-confusion-with-bosch-lambda-sensors/page/2/#findComment-5653435 Whatever your Felicia 1.6 has from the factory search and buy a new one exactly the same. We have plain OBD or OBD I and not OBD II so VAG-COM works fine with out port, some OBD II scanner devices not always. OBD11 is a scanner tool but has not those fancy applications that OBD II has. https://obdeleven.com/skoda In the past i have found and posted this: So forget the OBD II (also known as OBD 2).