Running hot problem, please HELP!

86audicoupe · 15-11-09, 05:17 PM

Hello all

You may not have seen much activity from me on here recently, I've been busy fixing up the 200 turbo and getting your Christmas pressies sorted out - the 2010 calendar!

Anyway...I need your help! The 200 turbo is running too hot when driving at slow speeds and when stationary. Since I've bought it and the problem becoming apparent, I thought it would be a good idea to flush the radiator completely and put new antifreeze in (stuff that was in there was bright green!

) and have fitted a new fan switch (thought it may be faulty and not working on the first speed).

Nothing has changed...it's still the same.

The fan cuts in at three quarters by which point it's pretty hot and struggles to get the temperature down (just stays in the same position). Once the car is turned off, it'll sit there for 10-15 minutes with the fan on until it's cool again. It can't be the thermostat because it warms up normally and sit's between a quarter and a half when driving normally.

The good news is the fact that it's never actually overheated, just runs hot! Has anyone got any ideas? Starting to pull my hair out over this one!

Thanks

4v6 · 15-11-09, 05:55 PM

What temps the thermostat supposed to open at and does yours do it?

pimpdriver · 15-11-09, 06:20 PM

have a look at this excellent website:

http://www.sjmautotechnik.com/troubl...lec.html#after

http://www.sjmautotechnik.com/troubl...ing.html#after

Steve

86audicoupe · 15-11-09, 07:28 PM

Thanks for your replies!

Lots of info there, going to check the relay and fuses first. From reading the article pimpdriver, it seems that the lower speed isn't cutting in when it should be and the high speed comes in (sounds like the car is going to take off!) at three quarters. Going to check a few more things and I will return...

Wish me luck!

msh · 15-11-09, 07:36 PM

Are u sure your A200 really have cooling fan slow speed function? How much pins have that fan switch u installed - two or three? And how much wires have connector?
From what material is your radiator made?

dandan · 15-11-09, 07:45 PM

hahaha had a similar problem once in a polo coupeS just whack the heater on full blast and get ya windows down, it sucks all the hot air off the engine (it does work!) that was until i went and bought a new fan

Woodsman · 15-11-09, 10:33 PM

I was just going to ask you if you'd sorted it, obviously not.

If the fan is only cutting in at full speed, and not at mid speed first. I'd check the fan resistor, mounted infront of and below the rad, that link that pimpdriver put up tells you how to check this.

Glad I read that, as I was going to fit a lower temp fan switch (golf mk3) but if mpg suffers I won't be bothering.

Coxy · 15-11-09, 10:36 PM

If it's not overheating, don't worry about it!

steveb · 15-11-09, 10:38 PM

you might have a partialy blocked rad

Coxy · 15-11-09, 10:40 PM

could it be air in the rad??

15-11-09, 07:45 PM	#6
dandan big gimping Classic Audi Club Member Join Date: Jun 2008 Location: derby Posts: 1,105	hahaha had a similar problem once in a polo coupeS just whack the heater on full blast and get ya windows down, it sucks all the hot air off the engine (it does work!) that was until i went and bought a new fan __________________

15-11-09, 10:38 PM	#9
steveb Senior Member Classic Audi Club Member Join Date: Jul 2008 Location: West Berkshire Posts: 1,155	you might have a partialy blocked rad __________________ [FONT] '76 Leyland Princess 2200 HLS '79 Scirocco storm '84 WR '89 coupe quattro '01 A2 1.4 TDI SE '14 A3 1.4 TFSI COD [/color][/size][/font]

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Running probs	vag80	Engine	9	30-07-09 06:33 AM
running problems	Amar	Engine	25	19-05-09 08:33 PM
Anyone Running LPG?	Jabber	General Chat	0	13-01-09 08:34 PM
anyone running after market ecu on 10v?	sam	Engine	5	03-01-09 10:33 PM

15-11-09, 05:55 PM	#2
4v6 Ex Member Classic Audi Club Member Join Date: Dec 2007 Posts: 5,565	What temps the thermostat supposed to open at and does yours do it?

15-11-09, 06:20 PM	#3
pimpdriver Devon Pastie Muncher Classic Audi Club Member Join Date: Jul 2007 Location: Calne Wiltshire Posts: 7,530	have a look at this excellent website: http://www.sjmautotechnik.com/troubl...lec.html#after http://www.sjmautotechnik.com/troubl...ing.html#after Steve

15-11-09, 07:28 PM	#4
86audicoupe Classic Audi Pervert! Classic Audi Club Member Join Date: Dec 2007 Location: Dorset Posts: 2,182	Thanks for your replies! Lots of info there, going to check the relay and fuses first. From reading the article pimpdriver, it seems that the lower speed isn't cutting in when it should be and the high speed comes in (sounds like the car is going to take off!) at three quarters. Going to check a few more things and I will return... Wish me luck!

15-11-09, 07:36 PM	#5
msh 4 ring whore! Join Date: Jun 2008 Location: Rucava, Latvija Posts: 3,816	Are u sure your A200 really have cooling fan slow speed function? How much pins have that fan switch u installed - two or three? And how much wires have connector? From what material is your radiator made?

15-11-09, 10:33 PM	#7
Woodsman Grown up member Join Date: Apr 2009 Posts: 92	I was just going to ask you if you'd sorted it, obviously not. If the fan is only cutting in at full speed, and not at mid speed first. I'd check the fan resistor, mounted infront of and below the rad, that link that pimpdriver put up tells you how to check this. Glad I read that, as I was going to fit a lower temp fan switch (golf mk3) but if mpg suffers I won't be bothering.

15-11-09, 10:36 PM	#8
Coxy 4 Ring Mafia Classic Audi Club Member Join Date: Jul 2007 Location: on the side of a hill in Shropshire! Posts: 28,215	If it's not overheating, don't worry about it!

15-11-09, 10:40 PM	#10
Coxy 4 Ring Mafia Classic Audi Club Member Join Date: Jul 2007 Location: on the side of a hill in Shropshire! Posts: 28,215	could it be air in the rad??