Temps not reaching 90

So did the replace the stat and pumpFOC?I hope so.I agree rad is unlikely to be blocked if the car wasnt overheating and is now fine .You can check by getting it up to temp switching off and feeling the rad topto bottom it s/b about the same temp but if the bottom is cold there is some sludge there which you may be able to flush out .If the rad feels OK and they are trying it on then syphon off the excess coolant ASAP.Its a sealed pressurised system and something could pop if theres too much in there

ok will do the coolant thanks.yes they did replace the stat and pump free of charge funny was when i told the lady there wont a blocked rad make the car overheat she did not know what to say she goes thats what tech said asked if i could speak to him she said he gone home mind you it was 6:00pm today when i picked the car up thats the time they close anyways cars up to temp so all good hope they aint messed any thing else up

I sympathise having experienced the same temp issues. I changed the temp sender and the stat and I flushing and changing the coolant on monday in the hope it will resolve it once and for all.

I think mixing antifreezes is a cause of rad blockages

Never mixed the antifreeze on my car bought it in 2008 off a lady owner and she serviced all at dealers just thinking rad blocked would that overheat?

It must overheat at any reasonable speed after not many miles cos the engine needs all the rad to cool and if theres a lot of sludge at the bottom it willreduce its efficiency although the coolant will still circulate.It would happen quicker on a hot day than if it was freezing.Its unusual if the right antifreeze has always been used and I would never trust garage servicing 100%

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Originally Posted by mikeybutch

It must overheat at any reasonable speed after not many miles cos the engine needs all the rad to cool and if theres a lot of sludge at the bottom it willreduce its efficiency although the coolant will still circulate.It would happen quicker on a hot day than if it was freezing.Its unusual if the right antifreeze has always been used and I would never trust garage servicing 100%

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never had the car overheat on me since i bought it even 100 miles plus trips on the motorway never overheated once was suprised when the dealers said rad was blocked. he said something about not enough heat the heaters are producing so he changed the water pump i said i never had a problem with the heats in the car but the water pump was under warranty so i said fine then they said rad blocked and wanted to charge me £450 to change it i just said park the car outside and il come to collect it just thinking have i made the right decision? as the car not overheating i think the rad should be fine.

That settles it the rad is OK but you could check by feeling and I would ask why they said it was blocked .

If your rad was blocked it would be boiling up or at least getting high temp alarms,I think the first thing to do is change the stat again,it an easy job to do then take it from there,they can stick even new ones as previously said.

I had an over cooling Passat 130 TDI in yesterday (probably the same engine) and the thermostat wasn't stuck open but when I tested it I found it opened way too early. A new genuine thermostat sorted it out.