D.FYLAKTOS

No, it's dirty, contaminated so it's a bad luck item. The external temperature is hi here, about 42 'C so i can not drive without a/c. I have to make a road test to see how the G12 works compared to the G11.

Remove both connectors from battery poles for at least 1 hour and: 1) Press the brakes, push switches for alarm-lights etc to "empty" any remain or the electrical current. 2) with a cable connect red and black main cable, this will help to empty the whole circuit from current remains (capacitors). 3) Remove the fuse for the car electronic system, it's on the left side, in the driver's manual you will find which is. 4) Unplug the 2 connectors from the ECU, check for corrosion signs. You need to drive for about a week so the ECU will "learn" your driving style and make adaptions.

Reseting the ECU does not means that the errors will vanished (problem is fixed), if there is a cause they will show up again.

Few years back sometimes i had a delay in cracking, not consistent but from time to time. One night although i had power i was barely manage to start the car, next morning no crank at all, "dead" and luckily i was parked beside the local repair shop. I thought was the starter but was the solenoid, i change it. As for the switch i spray 1-2 times per year contact cleaner with no oil and i clean the key grooves with cloth.

Last photos before goes to recycle bin. Let's hope that i will never see again an expansion tank like this in my car.

Same type, G11. I change it every 2 years.

You had problem with my 40% and now you say you had 30% ?

I had from about 2007 in my system a 20-25% percedage of antifreeze.

The mechanic made wrong in the calculation, now i about 45% G12 and distilled water. I am inpatient to see in hot summer that combination how it will work, i have about 18 years to work in such a high antifreeze percentage.

I forgot to add the word ''here", especially the young mechanics consider that any VW group car must have at least G12 bcause ''the sensors read better". 😄

Lets' hope that i will never see again such a dirty expansion tank. Now i have new with G12 which everybody says about it ''Oh, you put G12; the VW one" because in their mind the G12 is interwoven with the VW group. As for the road test will take some days, we have high temperatures here and it's very difficult to drive in City without a/c (i want to make comparison with the G11 in same situations so no a/c).

Here are some photos from previous expansion tank, the last with G11. As you can see still there is some muck inside,not as the first one but exists. I see no glitters by the way. The arrow shows the exit of the tank from there via hose goes to the bottom of the radiator. As you can see there is no muck stuck in there.

As i said i had no options, the car was inside the repair shop, gearshift seal and expansion tank was ready to pick them up from another parts shop. In few hours yesterday afternoon i had to find gear oil GL-4 so there would be no 2nd visit to the repair shop, now was the chance were the car was lifted for the coolant change. I searched in 2-3 shops in the area via their website and the best option was this Castrol or the previous Motul. I had to decide and buy in 3 hours, i ordered via phone and left my job to go there, buy and return fast as i could.

Castrol Transmax 75W-90 Synthetic gear oil, covers the API GL-4 specification. I didn't has time yesterday, i had to buy new gear oil because the car was already inside the repair shop. No time for extended search, wait for shipping etc. This gear oil is Synthetic, the previous Motul that i had was Semi synthetic.

Tomorrow i will have in my hands the old expansion tank (install a new one) and i will post photos of any remains. Let's hope that in the new one i wouldn't see anything and the whole system will be clean after 2 flushes.

The car is in the repair shop, HEPU G12 (P999) in 40% percentage will installed with distilled water.

Yes, as you told me, looks like this one: https://www.skoda-parts.com/data/items/224/59c4dff3aa546_xl.jpg I also ordered new gear oil as @nta16 gave me the idea.

OBD 11 works with smartphone, no need for laptop. But it's very expensive, keep in mind we have OBD I an old type port, not an OBD II which has many and much cheaper options.

Skoda says gear oil change after 60.000 km, i have done about 25-30.000 km. I have ordered that rubber bushing, tomorrow morning i will get it to the repair shop.

5-6 years ago. The cost of that bushing is 1.5 € only but the mechanic will charge me a lot for the disassembly-assembly work.

Already posted.

No need for big bold letters, no one is impressed that way. Same route, same speed and you have 7.7ltr ? NO and you know it. I have saved the photos from the deleted thread (because of the Other guy fault), i will bring that topic back in a slightly different way. That was a main rule back in ancient Greece, strictly those were separated.

Gentlemen, i have a gearbox leak, it's from the round gasket in the axis? The part code for that gasket is 002301227A or 959022407 ? Examples: https://kritosparts.gr/Code/959022407 and https://kritosparts.gr/Code/002301227A Worth to install a VIKA or must i search for another brand? Do i need a gearbox oil change after removing this or the mechanic will collect everything will come out and throw it back?

Luckily i found the picture that i took before the test, from the 47.3 Km went to 50.5 Km plus some gas spend in extended idle for the coolant flush-add distilled water plus additive. So from that point i went to 91.9 Km and spend 3 ltr gasoline (from 5.8 ltr to 8.8 ltr) for a 41.4 Km distance test (include City traffic) so the Fuel Consumption was: 7.24 ltr/ 100 Km or 39.02 British MPG. Who's laughing now? Me, because as we say here in GR "I am laughing last".

I haven't use the words ''bonnet" and ''boot" (in speaking or writing) in my whole life so it's difficult to do it now, we also don't use words as ''Awe, Splendid, Rubbish, B@llocks, Preposterous, Terrific etc" no matter if we know them by TV series of 19th-20th era style. Although i do with words as ''I'm gonna" or ''I wanna", keep in mind that here in GR we don't ''love'' the Yankees. I just remember that i took some photos before i start that test so i can calculate precisely the Fuel Consumption for that 41 test distance. Tomorrow i will post the results and make @Thefeliciahacker feel uncomfortable (AGAIN). 😁