doctavia

Same here ✌️... I have same year but 1.6. Still not resolved

Cactusjack your result its the one im hoping not to be.. Since my last update its been 3 weeks in the mean time I was checking the water regularly and didnt have the burst since then. I can tell that water level fluctuates up and down and Im stil not quite sure if its ok when car its been driven and then cooled down after night I still have that small "hisss" from expansion bottle when i open it. Can anyone check that on his car? thanks

So it was the problem in the head gasket?

Good to know.

Just finished flushing the heat exchanger in cabin. It had some debris inside looking like chunks of rust and some other really fine particles. I flushed with tap water from both sides to make sure all debris went out. I even tried to blow inside and i think the air flow is good enough. For better result I would need to flush all system. Then I put all back together topped up the coolant and started engine with heat on until it reached the temp then topped up to between min and max. Tho I'm pretty sure it will burst the coolant out off expansion after next dpf regeneration 😵. Here are some pics of debris i found inside.

Kiddi79 Did you find the solution yet? I found many threds (on some seat forum) about cooling water beeing blow out of expansion tank because the heating matrix being clogged. In my case my heating is working fine. Do you have hot air blowing from all vents? I would try to flush mine heatinx matrix, a lot people reporting some debris clogging it up.

Hey. Been searching the answer for a time now. Mine is 1.6 tdi not maped and its consuming coolant when I drive 130+ km/h. The message for coolant level always come up the other day when the engine is cool. My first tought it was the EGR cooler since there were some spots that suggested as coolant leak (and previously i had error code P040100 ''insufficient EGR flow''). So i swaped the Egr cooler and the egr itself. The problem still exist. My conclusion is that the coolant expansion tank is beeing presurized and the coolant overflows and spills from the vent on side of expansion tank and drips behind the wheelarch (weird is that the leak never appears on the ground- must be leaking while I'm driving it). The car its not overheating, the heating matrix I guess its not blocked since the heating works fine, the silica bag was previously taken out from the cooling expansion tank, water pump was changed 60kkm before, due to fail. I'll try to do a pressure test to see if maybe the cap itself is not venting and that creates overpressure in the expansion tank. Its absurd that this problem exists on 100+ octavias, Seat has same problems... and no one knows the issue. Even more absurd sounds that all cars would suffer head problems. Well mine its making me ''head problems''. Anyway if you get to the point of problem please let know.

Hi everyone, recently I have problem with my central door locking on my Octavia 3 (year 2015). When I try to lock it with fob key it does two "clicks" instead only one. All the doors lock, only the drivers wont lock. If I try to lock it with key in doors lock then it does the job. I have tried to lock it with second key and still the same problem. I've already visually checked wires between door and chassis and taken apart the door frame, but on the eye everything looks ok. I have Obdeleven, so I tried to scan it. It scanned those fault codes ; U019900 , B122D29 , B122B11 ,B122B12 . If someone had the same problem, please help. I attached scanned faulty codes tho its written in SI. Thanks