Ideas please  Took Kodiaq week last Saturday outside temperature somewhere between 0 degrees and -3 degrees. Run for approx 4 miles to shops, temp gauge going up to 90 degrees and then kept going past two more segments. Stop at shops for a few minutes. On startup temp gauge  at 90 degrees within less than a mile was several segments past 90 degrees. Check oil temp, 100 degrees, recheck after about half a mile 103 degrees, obviously overheating. Decided to return home via motorway staying at 60mph, on joining motorway temp gauge goes down to 90degrees and stays there for the whole of the journey home. Use the car the following day use car for about 20 miles round trip, outside temp 4 degrees, temp gauge goes to 90 degrees and stays there for the whole journey.

Seems something is freezing. Any ideas.

 

KSccout

I'd suggest checking if the radiator cooling fan is working first.

@KScout There is a device called a "hygrometer" which will let you check the specific gravity of the coolant.

Oil temp between 100 and 110 degrees is normal.

As told, check the radiator fan and the fuse for it.

 

 

2 hours ago, Paws4Thot said:

@KScout There is a device called a "hygrometer" which will let you check the specific gravity of the coolant.

 

"Hydrometer" - used for measuring density of liquids the specific gravity.

 

You could also use a "Refractometer". Does the same thing but by differently.

 

This is the tell tale signs of a failing waterpump. The sleeve on the pump can fail to retract, causing the overheat. The oil temp is probably normal, however the Kodiaq uses a water oil cooling interface, so any excess heat in the water will be passed to the oil and vice versa.

A good independent can change the water pump (and belt, this is important to do at the same time) for £500 to £600

 

This has happened to me on 2 Skodas, an Octavia and Kodiaq, both exhibiting the same symptoms.

Just went out and bought a Hydrometer - shows coolant antifreeze is ok, but coolant level very low. 

I used the oil temp to check if temp gauge was not going faulty, increase in  oil temp proved this.

Can I ask Nickj633 a question? did the signs of a failing water pump only occur when the outside temp was below 0 degrees? Since the temp outside has risen above zero the car has performed as usual, the temp gauge going up to 90degrees and staying there rock solid. Is the water pump driven off the timing belt? My car has just done nearly 50,000 miles and I will probably get the timing belt replaced in another 10,000 miles. Water pump as well? 

Thanks to you all with your offered solutions. I am about to go out and buy some antifreeze to top up cooling system. Will report back.

Can someone tell me what fuel type the engine of a Kodiaq 190 is please, I am not a mind reader.

 

I believe that it is only the diesel variant that has the sliding sleeve water pump but happy to be proved wrong.

 

I dont think either a petrol or a diesel engine is capable of overheating in 4 miles from a zero degree start, was there any significant heat coming from the heater?

 

Localised slight overheating I can understand (dependant on the location of the sender) before the thermostat opens and when the coolant is only circulating through the heater radiator, normally the VAG fudge factor gauge correction hides that, perhaps the gauges are now telling the truth?

 

Oil temperature is correct which makes me think that the engine just has very good warm up coolant circulation management for a better emissions rating.

 

If you dont know the history of your vehicle it could perhaps not have any anti-freeze in the coolant, your thoughts of something freezing could indeed cause the higher readings through a lack of circulation, back again to the question was there significant heat coming out of the heater?

Hello,

I have faced the same issue an my 190 diesel kodiaq L&K.

 

Even if the external temperature was between -5 and 0 °Celsius, the water gauge was at 130° 

Just switch on the AC and the Fan helped to join the 90°

After that i have driven 500Km in one time with no issue.

I have faced again the issue 3 or 4 times, each time it was when the car was cod and after 10 or 15 km. Each time the temp was OK again after activating AC and FAN.

I have asked skoda dealer to fix the issue, but they say that they are not able to reproduce the problem.

They ask me to wait a hot temp engine message.

For me it's incredible to ask customer to drive with temp at 130° waiting for an hypothetic alert message (I have the photo of the dashboard where you can see the temp at 130°)

 

I have deal with the garage to give them my car for one week, so they will be able to test it when the car is cold.

 

I just hope that the ambient external temp, (now near 10° in France), will not be a case of non-failure .....

 

Kind Regards

I bet it was only localised heating to 130°c in the vicinity of the temperature sensor due to non circulation through the radiator (designed warm up strategy), 10-15km from a -5°C or zero degree start is not enough time for a diesel engine to have heated the volume of coolant to 130°C unless towing treble its weight limit uphill through switchback bends.

 

That there was not an overheat warning message lends weight to my theory, the engine has more than one temperature sensor, for the last 30 years VAG vehicles had fiddled the temperature gauge readings to read a rock steady 90°C over a wide range of actual coolant temperatures so as not to concern the driver with normal running fluctuations, from the sound of things I reckon that has been removed on your Kodiaqs.

 

When it happened to you did the heater output cook you? Could you smell overheating?

Edited 25 January, 20251 yr by J.R.

 

When I have stopped the engine, I couldn't smell any overheating.

The level of coolant was good and not seems to be very hot (the temp was just stabilized)

I bought this new car 6 years ago, it has now only 70000 KM and the gauge has never gone over 90° (and this car is every summer in Corsica  where weather is hot).

Even if there ae more than 1 temperature sensor, I think that the one connected to the gauge is inside the engine. So, for me it could cause mechanics damage to continue to drive.

The first time the problem occurred was end of December.

It seems that sometime, I don't understand why, there is no issue even if I drive more than 15 km without traffic.

I have topped up the coolant with antifreeze and all has appeared well - As with Steph2a driving around, normal traffic speed rarely above 35mph. Decided to have a trial and took to the motorway, accelerated rapidly to 70mph and the temp gauge immediately starts to rise above the 90 degree mark. Come off motorway and gauge goes down to 90 degrees. 

Question, could this be that the fan is not cutting in - and how do I check this or is it the water pump (expensive repair).

Next to impossible for it to be the fan, never seen a radiator fan running ona  diesel other than for air con or regen purposes, it just doesn't happen, especially when moving  Its more than likely the water pump sleeve sticking, or the thermostat or some other blockage causing poor coolant circulation.

 

Best thing to do is to inspect where the return hose enters the coolant resovoir (the small bore hose) if the engine is hot and there is no coolant dribbling through that line, the water pump is not working.

Edited 27 January, 20251 yr by SuperbTWM

This is what flow to expect when the pump is ‘on’ vs ‘off’

 

when the coolant temp in the microcircuit that is the cylinder head, egr cooler and heater matrix gets to around 70-80 degrees you should see the main pump turn ‘on’ and you should get a flow in this small pipe. Check this first

If the problem of overheating when the engine is working hard is caused by a failing water pump can I ask for some advice:- Can this be replaced by local garage or is it a dealer job?

Yes, it's a basic timing belt job essentially but get it correctly diagnosed first before insisting the water pump is changed

SuperbTWM thanks for the reply Dealer fix?

Any decent garage should be able to change a water pump on this car.

On 25/01/2025 at 18:13, Steph2a said:

Bonjour

J’ai rencontré le même problème avec mon 190 diesel kodiaq L&K.

 

Même si la température extérieure était comprise entre -5 et 0 °C, la jauge d’eau était à 130°

Il suffit d’allumer la climatisation et le ventilateur a aidé à rejoindre les 90°

Après cela, j’ai parcouru 500 km en une seule fois sans problème.

J’ai de nouveau été confronté au problème 3 ou 4 fois, à chaque fois c’était lorsque la voiture était en panne et après 10 ou 15 km. À chaque fois, la température était à nouveau correcte après avoir activé AC et FAN.

J’ai demandé au concessionnaire skoda de résoudre le problème, mais ils disent qu’ils ne sont pas en mesure de reproduire le problème.

Ils me demandent d’attendre un message de moteur de température chaude.

Pour moi, c’est incroyable de demander au client de conduire avec la température à 130° en attendant un hypothétique message d’alerte (j’ai la photo du tableau de bord où l’on peut voir la température à 130°)

 

J’ai passé un accord avec le garage pour leur donner ma voiture pendant une semaine, afin qu’ils puissent la tester lorsque la voiture sera froide.

 

J’espère juste que la température extérieure ambiante, (aujourd’hui proche des 10° en France), ne sera pas un cas de non-défaillance .....

 

Cordialement

Bonjour, j'ai le même problème que vous depuis cette été avec des montés et descentes de température au delà des 90' , puis soit après un arrêt sur un parking ou soit en roulant en dessous de 80KM cela se stabilise à 90'. Et j'ai pu faire comme cela plus de 3000KM cette été, car en Espagne il faisait Chaud parfois plus de 30' et j'ai appelé Skoda sur perpignan pas de place avant fin septembre , sinon il fallait que je monte a 130' et appelle l'assistance. Donc maintenant je suis rentré chez moi, et j'ai eu encore le problème sur un petit parcours, et pourtant il fait que 15' dehors.

J'ai un Skoda KODIAQ 150 L&K en 7 Places depuis 2018 et il a toujours très bien fonctionner.

@RMC95 I have translated your post but can you please use English going forward. Thanks, Briskoda admin

Hello, I've had the same problem as you since this summer, with the temperature rising and falling above 90°F (20°C). Then, either after stopping in a parking lot or driving below 80 km (50 mi), it stabilizes at 90°F (20°C). I was able to do over 3,000 km (1,800 mi) like this this summer, because in Spain it was sometimes hot, over 30 minutes (20°C). I called Skoda in Perpignan, and there was no room until the end of September. Otherwise, I had to go up to 130 minutes and call for assistance. So now I'm back home, and I've had the problem again on a short trip, even though it's only 15 minutes outside.

I've had a Skoda Kodiaq 150 L&K 7-seater since 2018, and it's always worked very well.