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Righto I went to the mechanic today and he plugged it into his super duper snap on machine and it came up with cFault code: P1256 = coolant temp sensor short to positive, AHHH so it was that sensor ! Good work chaps its going in next week for CV boot and sensor.
I do have yet another question !!!
Noticed that the left hand fan permanently runs and the right hand side only comes on when the ECON/AIRCON button pressed which its supposed to do.
Is the left hand fan always on ? (in the BMW it was always on ) If so then i guess it speeds up if it needs to cool engine down.
And if not then maybe that issue is connected to the faulty sensor.
Many thanks
And if not then maybe that issue is connected to the faulty sensor.
That.
pollen filter - if it gets clogged then water can seep into the car
Surely you mean the drain hole under the battery?
you can get a third party interface on ebay
And rip off the very good people at RossTech who do a lot of work making the software...
Underneath the battery tray on the bulkhead is a black one way flapped 'valve' that drains the scuttle under the battery tray of rain water, this tray rubs the full width of the car, below the plastic screen trim. The drain hole often become bunged up with pine needles and other detritus if you park under trees in the woods a lot and it's vital that you check that area drains easily....it drains down out of sight. If you have thin hands and arms you can run your hand or a small ruler say along the underside of that scuttle tray, find the drain hole pllug valve thingy in the centre line of the bulkhead and use a pokey stick/finger to loose up any pine needles/crap. If you don't do the above the under battery tray area back fills with water and it will enter your foot wells and kick plates via you cabin heater inlet. I used to have to do mine every six months without fail!
As for the fan, yep faulty sensor will cause that issue too.
Have had another look at the fan and with the key turned on engine not running the fan is stationary but turn engine on it starts to spin the fan is conected to the belts, waterpump etc.
I turned the fan when engine was off and it turns freely.
If it's not supposed to be like that then hopefully the sensor will rectify that problem.
Also had code which is probably been thrown up because of faulty coolent sensor.
Which is why the fan is on all the time !
P1672 - Volkswagen
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description
Engine coolant blower motor, speed 1 - open circuit/short to ground
Cause
Wiring open circuit/short to ground
Try also: http://www.obd-codes.com/p1672
Oo hang on I'm a dumbf....the fan your on about is the viscous linked fan on the engine block....so yes it will freely spin and spin all the time when the engines running....chuff all to do with sensors!
And not faulty the engine fan that is....
To check the electrically driven fan leave the car ticking over until it kicks in ( normally between temp gauge showing three quarters agai n from memory). It should run for a few minutes then switch off when the engine temps back to normal. This fan will of course be influenced by the signal being received from the faulty sensor!
Phew !
So it's meant to turn when the engine is on !
Yep it's a viscous coupling 😆
What and how does that work ?
And why?
Viscous fan should not spin or spin only slowely and should be about to be stopped by hand on a cold engine
As the engine gets hot the fluid in heats up and becomes more viscous meaning the fan kicks in
A viscous fan that spins at full speed with a cold engine is a ****ed viscous fan.
And why?
Just interested
A viscous fan that spins at full speed with a cold engine is a **** viscous fan.
Its not at full speed though Im not sure Id want to stick my hand in ! But its prob running slightly fast due to the sensor ? !?!
The other fan comes on if I turn ECON off and run aircon so thats working
The viscous fan wasn't fubarred on my Passat and there is no way I would purposefully put my hand anywhere near it....those blade edges are very sharp and having once caught it accidentally, it bloody hurts!