Moribund

Thanks for the quick response Warrior. I’ve got an ongoing problem with the coolant warning being triggered (from cold start) but the level is above minimum and it doesn’t seem to be losing coolant. I’ve noticed that once the warning goes off a temperature sign appears but it goes off intermittently. This coolant tank was only fitted two weeks ago when the heater core was replaced. I’ve tried cleaning the prongs this morning and will see if it makes a difference otherwise it’s back in the garage.

How do these coolant level sensors work? Do they pass current between the two prongs but in the absence of any coolant the warning is triggered? If there is sufficient coolant the circuit completes?

Thanks for the response. I’m not convinced I’m losing coolant - I’ve been checking the level every day. The picture below shows the level in the tank tonight. I turned on the ignition at lunchtime and no warning message came on - got in the car tonight and the message comes up. I removed the cap off the tank and put it back (without adding coolant) and message is gone. I drove for 20 minutes and no warning. Doesn’t make sense to me.

After topping up on Sunday I went for a drive last night and when I inspected the coolant level tonight it appeared ok However I turned on the ignition and I get a low coolant warning. Doesn’t seem right. I topped up a very small amount of coolant mixture and the warning disappears. Is it possible that the sensors are faulty?

Thanks for the response I’ve been topping the coolant up with a ready made G12 solution which is what the garage filled the system with. I guess the question is how many times do you keep topping the coolant up before you come to the conclusion that the issue isn’t air pockets but a leak. I will make some checks - the carpet would be an obvious one if there is a leak connecting to the heat matrix. I believe the hose connections to the matrix are on the engine side. The rad hoses shouldn’t have been touched but could have been disturbed during the work. If it’s something easy to fix it would save a lot of hassle.

Finally took the car into the garage last week to have this work done. Garage flushed the system and replaced the heating core and header tank (with no silicat bag). I noticed a massive difference in the heater from the moment I collected the car. Went for a long business trip (well 250 miles) and on the return trip a warning for low coolant appeared. I topped it up at the next services (this was Friday evening). I then did another hour’s motorway driving. Drove the car locally on the Saturday and Sunday morning started the car and the same warning again. In both cases the car needed topping up by about a quarter of a pint. Is this normal or should I contact the garage to check for leaks? Heating is now working fine but this is annoying. Any advice would be greatly appreciated

Hi, Does the nozzle look like the picture below? on the hatchback the pipe enters the wiper motor on the inside of the car and comes out of the plastic nozzle below through two metal holes

Had a trip to the dealers this morning and got a comparison quote. I can see why people on here call them the stealers…they said it would normally be £1800 but they would do a special deal for £1600 - literally more than twice what the Indy garage quoted. I know they will use Skoda parts but in this case the parts are not that expensive -you’re paying for the labour. £1800 would just less than a quarter of the value of the car

I ended up going to Johnson’s Skoda where they sold the nozzle for £7.25 so I bought a couple. The new one went on a lot tighter but the performance was a massive improvement - the increase in pressure meant that the water came out as a mist/spray. The spares bloke tried to convince me it was inferior screen wash causing the clogging up and tried to sell me 1 litre of Volkswagen concentrated screen wash for £10.

Finally got round to taking my car in to an independent (but German car specialist) garage. It was confirmed that it was the heat matrix that was causing the heating problem and I was quoted £700 parts and labour to flush , replace the matrix and replace the header coolant tank. Not sure if that is a reasonable price but he says he would need it for 2 days and can’t do until the New Year

I have exactly the same issue - one nozzle has cleared and one is still blocked despite soaking overnight in white vinegar and using a needle to unblock. I’m now looking at sourcing a replacement. My part number is identical. So far I’ve only found ŠKODA Direct at £16. I don’t mind paying that but it’s nearly £7 postage for something that weighs less than a Christmas card. I’ve found cheaper on e-bay but (although the part number is correct) the seller only mentions Octavia Mk 2.

Did you end up having to have the matrix replaced or did the flushes and expansion tank replacement do the job?

Update: part arrived in post today and I installed it in half an hour from the outside without removing trim. I loosened the edges with plastic tools then using automass's advice I used a long bladed flat screwdriver and it popped out. The other 20 minutes was spent trying to get the wire connection off which is clipped in and I was frightened of breaking it/. So its in and working ....for now anyway 😁 Thank you @automass - you've saved me a few hours

I just bought one from Nirro Ltd for £25 with a 30 day warranty. I’ve got some trim removal tools and I’m going to try getting out from the outside first. I will let you know how lt goes - mine is a 2017 66 plate so fingers crossed

Hi automass, I'm going to fit a replacement next week and was wondering if you had any tips... Did you extract the unit from the front or remove the trim from the inside and push it out Is it simply a pulling off the existing wiring and attaching to the new unit Did you use any You Tube videos (I couldn't see any) Thanks in advance.