polo overheating

martinjr | 14:07 Sat 24th Mar 2007 | Motoring

6 Answers

Replaced thermostat but engine overheats still (water). If I remove thermostat it works normally althoug, as expected, the heating is not fully functional. Bottom rad pipe cool without thermostat but warm without it.
Any ideas what the problem could be?

TomTom Go 300

TomTom sat nav question

Answers

1 to 6 of 6

Best Answer

No best answer has yet been selected by martinjr. Once a best answer has been selected, it will be shown here.

For more on marking an answer as the "Best Answer", please visit our FAQ.

martinjr

Question Author

That last sentence should have read: bottom rad pipe cold when thermostat in and warm when it is removed.

rdv

If this is a 6n polo chances are the plastic water pump impellor is loose on the shaft. not unusual with these pumps, also occurs on golfs

martinjr

Question Author

What is 6n Polo? The model is a Polo 1.4 lassic, 4 door saloon - year 1997.

If the impellor is loose does this mean the pump itself should be replaced?

rdv

yes thats a 6n model. yes only solution is new pump problem usually occurs at high mileages

martinjr

Question Author

Thanks to rdv for replies and help - new pump looks the bet.

funnytool

Vw have modified the thermostat and cover cost £30 with seal the cure

1 to 6 of 6

Do you know the answer?