Hi all.

I hav`nt been on here for a few years now,but i have just recently purchased a 2007 Vrs diesel from my local Skoda dealer.The car seems fine but it has a fault.

When i got the car i noticed that it was`nt fully warming up,back it went for a new temp sensor,still the same,back again for a new thermostat.This cured the problem and warm up it did,all the way to 90 degs.

However,i noticed yesterday that on the way to work it did`nt fully warm up,after 5 miles,got to about 75 degs,pulled into the work car park and watched the needle drop to around 60 degs,with the engine running.WTF.

It will be going back again,but has anyone out there came across this before?????

THANKS in advance folks.............

I`m going to post another thread so please take a look,thanks..........

It could be just an accurate reading gauge. It is usual for manufacturers to have the temp gauge read "normal" or a pretty wide range.

Diesels only inject enough fuel to make them run at the chosen speed, and convert that fuel to kinetic energy much more efficiently than a petrol fueled vehicle. At tickover the quantities are miniscule. There just isn't much "waste" heat going to cooling system, I'm not surprised the actual temperature drops, but slightly surprised the gauge registers it.

My car takes the best part of 10 miles to warm up when it's this cold. If I have the heating on the needle drops back down aswell when stationary

My car takes the best part of 10 miles to warm up when it's this cold. If I have the heating on the needle drops back down aswell when stationary

This happens to my car aswell

As above

Sent from my iPhone using my thumbs

As does mine. In this cold weather it takes ages to warm up and sitting for a while in the car idling can make the temp drop.

Its normal, it'll never warm up in 5 miles this time of year.

As above I can drive to the Metro Centre (10 miles) and it won't hit 90c on the Leon, the Fabia (petrol mpi) hits a coolant temp of 90c after a 2 mikes whatever the weather.

Mine usually takes around eight miles before it is up to full operating temperature. However, in the cold weather and with the climate control set to a high temperature, it can take significantly longer than that.

I can only assume it was as cold were you are as it was here yesterday. I don't think you have a problem at all.

In current temps mine takes about 15 miles and 20 mins to warm up.

Part way through the warm up phase on my way to work I have a long downhill off throttle run and the temp gauge drops back from half way to cold

I was reading a similar discussion on a Seat forum where someone posted the following technical bulletin:

Technical product information Transaction No.: 2020133/12

Engine temperature display fluctuates between 50° and 90° C - all TDI Release date: 04-Dec-2012

Customer statement / workshop findings

At outside temperatures under 5°C the engine temperature fluctuates according to the display in the dash insert between 50 and 70°C or till the coolant temperature reaches 90°C. The phenomenon occurs mainly when driving at low engine speed.

Technical background

Because of a very good effectiveness of the engine in low rev range, little engine heat is passed on to the coolant. At low outside temperatures the coolant temperature does not reach 90°C. If the heating is used, the coolant loses further heat depending on the blower level. As a result, the coolant temperature can fluctuate between 50°and 90°C.

Below an outside temperature of 5°C and a coolant temperature of 70°C the standard PTC auxiliary heater is activated, to heat the interior. The best effectiveness of the PTC auxiliary heater is achieved when the temperature is on 22°C and the air conditioning on "auto".

Production change

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Measure

Please do not repair, this is normal. Warranty accounting is not permitted, warranty claims will be redebited!

Warranty accounting instructions

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Parts information

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Customer information

A low coolant temperature has no effect on the service life of the engine. An engine oil with suitable viscosity is used.

http://www.seatcupra.net/forums/showthread.php?t=369714&page=2

John

Hey folks..

Thanks for the quick replies.

All these responses have put my mind at rest,was begining to think i`d bought a `wrang un`!

Excellent,thanks all.